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net/9p/client.c
50.7 KB
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/* * net/9p/clnt.c * * 9P Client * |
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* Copyright (C) 2008 by Eric Van Hensbergen <ericvh@gmail.com> |
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* Copyright (C) 2007 by Latchesar Ionkov <lucho@ionkov.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to: * Free Software Foundation * 51 Franklin Street, Fifth Floor * Boston, MA 02111-1301 USA * */ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include <linux/module.h> #include <linux/errno.h> #include <linux/fs.h> |
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#include <linux/poll.h> |
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#include <linux/idr.h> #include <linux/mutex.h> |
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#include <linux/slab.h> |
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#include <linux/sched.h> #include <linux/uaccess.h> #include <net/9p/9p.h> |
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#include <linux/parser.h> |
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#include <net/9p/client.h> |
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#include <net/9p/transport.h> |
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#include "protocol.h" |
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|
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#define CREATE_TRACE_POINTS #include <trace/events/9p.h> |
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/* * Client Option Parsing (code inspired by NFS code) * - a little lazy - parse all client options */ enum { Opt_msize, Opt_trans, Opt_legacy, |
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Opt_version, |
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Opt_err, }; |
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static const match_table_t tokens = { |
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{Opt_msize, "msize=%u"}, {Opt_legacy, "noextend"}, {Opt_trans, "trans=%s"}, |
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{Opt_version, "version=%s"}, |
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{Opt_err, NULL}, }; |
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inline int p9_is_proto_dotl(struct p9_client *clnt) { |
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return clnt->proto_version == p9_proto_2000L; |
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} EXPORT_SYMBOL(p9_is_proto_dotl); inline int p9_is_proto_dotu(struct p9_client *clnt) { |
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return clnt->proto_version == p9_proto_2000u; |
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} EXPORT_SYMBOL(p9_is_proto_dotu); |
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/* Interpret mount option for protocol version */ |
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static int get_protocol_version(char *s) |
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{ |
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int version = -EINVAL; |
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if (!strcmp(s, "9p2000")) { |
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version = p9_proto_legacy; |
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p9_debug(P9_DEBUG_9P, "Protocol version: Legacy "); |
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} else if (!strcmp(s, "9p2000.u")) { |
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version = p9_proto_2000u; |
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p9_debug(P9_DEBUG_9P, "Protocol version: 9P2000.u "); |
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} else if (!strcmp(s, "9p2000.L")) { |
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version = p9_proto_2000L; |
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p9_debug(P9_DEBUG_9P, "Protocol version: 9P2000.L "); |
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} else |
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pr_info("Unknown protocol version %s ", s); |
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|
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return version; } |
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/** |
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* parse_options - parse mount options into client structure * @opts: options string passed from mount * @clnt: existing v9fs client information |
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* |
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* Return 0 upon success, -ERRNO upon failure |
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*/ |
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static int parse_opts(char *opts, struct p9_client *clnt) |
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{ |
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char *options, *tmp_options; |
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char *p; substring_t args[MAX_OPT_ARGS]; int option; |
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char *s; |
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int ret = 0; |
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|
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clnt->proto_version = p9_proto_2000u; |
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clnt->msize = 8192; |
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if (!opts) return 0; |
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tmp_options = kstrdup(opts, GFP_KERNEL); if (!tmp_options) { |
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p9_debug(P9_DEBUG_ERROR, "failed to allocate copy of option string "); |
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return -ENOMEM; } |
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options = tmp_options; |
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while ((p = strsep(&options, ",")) != NULL) { |
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int token, r; |
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if (!*p) continue; token = match_token(p, tokens, args); |
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switch (token) { case Opt_msize: r = match_int(&args[0], &option); |
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if (r < 0) { |
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p9_debug(P9_DEBUG_ERROR, "integer field, but no integer? "); |
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ret = r; |
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continue; } |
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clnt->msize = option; break; case Opt_trans: |
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s = match_strdup(&args[0]); if (!s) { ret = -ENOMEM; |
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p9_debug(P9_DEBUG_ERROR, "problem allocating copy of trans arg "); |
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goto free_and_return; } clnt->trans_mod = v9fs_get_trans_by_name(s); if (clnt->trans_mod == NULL) { |
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pr_info("Could not find request transport: %s ", s); |
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ret = -EINVAL; |
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kfree(s); |
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goto free_and_return; } |
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kfree(s); |
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break; case Opt_legacy: |
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clnt->proto_version = p9_proto_legacy; |
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break; |
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case Opt_version: |
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s = match_strdup(&args[0]); if (!s) { ret = -ENOMEM; |
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p9_debug(P9_DEBUG_ERROR, "problem allocating copy of version arg "); |
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goto free_and_return; |
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} ret = get_protocol_version(s); if (ret == -EINVAL) { kfree(s); goto free_and_return; } kfree(s); |
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clnt->proto_version = ret; break; |
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default: continue; } } |
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|
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free_and_return: |
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kfree(tmp_options); |
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return ret; |
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} |
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/** * p9_tag_alloc - lookup/allocate a request by tag * @c: client session to lookup tag within * @tag: numeric id for transaction * * this is a simple array lookup, but will grow the |
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* request_slots as necessary to accommodate transaction |
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* ids which did not previously have a slot. * * this code relies on the client spinlock to manage locks, its * possible we should switch to something else, but I'd rather * stick with something low-overhead for the common case. * */ |
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static struct p9_req_t * p9_tag_alloc(struct p9_client *c, u16 tag, unsigned int max_size) |
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{ unsigned long flags; int row, col; |
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struct p9_req_t *req; |
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int alloc_msize = min(c->msize, max_size); |
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/* This looks up the original request by tag so we know which * buffer to read the data into */ tag++; if (tag >= c->max_tag) { spin_lock_irqsave(&c->lock, flags); /* check again since original check was outside of lock */ while (tag >= c->max_tag) { row = (tag / P9_ROW_MAXTAG); c->reqs[row] = kcalloc(P9_ROW_MAXTAG, sizeof(struct p9_req_t), GFP_ATOMIC); if (!c->reqs[row]) { |
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pr_err("Couldn't grow tag array "); |
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spin_unlock_irqrestore(&c->lock, flags); |
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return ERR_PTR(-ENOMEM); |
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} for (col = 0; col < P9_ROW_MAXTAG; col++) { c->reqs[row][col].status = REQ_STATUS_IDLE; |
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c->reqs[row][col].tc = NULL; |
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} c->max_tag += P9_ROW_MAXTAG; } spin_unlock_irqrestore(&c->lock, flags); } row = tag / P9_ROW_MAXTAG; col = tag % P9_ROW_MAXTAG; |
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req = &c->reqs[row][col]; if (!req->tc) { |
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req->wq = kmalloc(sizeof(wait_queue_head_t), GFP_NOFS); |
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if (!req->wq) { |
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pr_err("Couldn't grow tag array "); |
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return ERR_PTR(-ENOMEM); } init_waitqueue_head(req->wq); |
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req->tc = kmalloc(sizeof(struct p9_fcall) + alloc_msize, GFP_NOFS); |
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req->rc = kmalloc(sizeof(struct p9_fcall) + alloc_msize, GFP_NOFS); |
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if ((!req->tc) || (!req->rc)) { |
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pr_err("Couldn't grow tag array "); |
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kfree(req->tc); kfree(req->rc); |
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kfree(req->wq); req->tc = req->rc = NULL; req->wq = NULL; |
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return ERR_PTR(-ENOMEM); } |
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req->tc->capacity = alloc_msize; req->rc->capacity = alloc_msize; |
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req->tc->sdata = (char *) req->tc + sizeof(struct p9_fcall); |
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req->rc->sdata = (char *) req->rc + sizeof(struct p9_fcall); |
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} p9pdu_reset(req->tc); p9pdu_reset(req->rc); |
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req->tc->tag = tag-1; req->status = REQ_STATUS_ALLOC; |
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return &c->reqs[row][col]; } |
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/** * p9_tag_lookup - lookup a request by tag * @c: client session to lookup tag within * @tag: numeric id for transaction * */ struct p9_req_t *p9_tag_lookup(struct p9_client *c, u16 tag) { int row, col; /* This looks up the original request by tag so we know which * buffer to read the data into */ tag++; |
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if(tag >= c->max_tag) return NULL; |
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row = tag / P9_ROW_MAXTAG; col = tag % P9_ROW_MAXTAG; return &c->reqs[row][col]; } EXPORT_SYMBOL(p9_tag_lookup); /** * p9_tag_init - setup tags structure and contents |
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* @c: v9fs client struct |
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* * This initializes the tags structure for each client instance. * */ static int p9_tag_init(struct p9_client *c) { int err = 0; c->tagpool = p9_idpool_create(); if (IS_ERR(c->tagpool)) { err = PTR_ERR(c->tagpool); |
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goto error; } |
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err = p9_idpool_get(c->tagpool); /* reserve tag 0 */ if (err < 0) { p9_idpool_destroy(c->tagpool); goto error; } |
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c->max_tag = 0; error: return err; } /** * p9_tag_cleanup - cleans up tags structure and reclaims resources |
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* @c: v9fs client struct |
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* * This frees resources associated with the tags structure * */ static void p9_tag_cleanup(struct p9_client *c) { int row, col; /* check to insure all requests are idle */ for (row = 0; row < (c->max_tag/P9_ROW_MAXTAG); row++) { for (col = 0; col < P9_ROW_MAXTAG; col++) { if (c->reqs[row][col].status != REQ_STATUS_IDLE) { |
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p9_debug(P9_DEBUG_MUX, "Attempting to cleanup non-free tag %d,%d ", row, col); |
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/* TODO: delay execution of cleanup */ return; } } } |
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if (c->tagpool) { p9_idpool_put(0, c->tagpool); /* free reserved tag 0 */ |
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p9_idpool_destroy(c->tagpool); |
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} |
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/* free requests associated with tags */ for (row = 0; row < (c->max_tag/P9_ROW_MAXTAG); row++) { |
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for (col = 0; col < P9_ROW_MAXTAG; col++) { |
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kfree(c->reqs[row][col].wq); |
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kfree(c->reqs[row][col].tc); kfree(c->reqs[row][col].rc); } |
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kfree(c->reqs[row]); } c->max_tag = 0; } |
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/** * p9_free_req - free a request and clean-up as necessary * c: client state * r: request to release * */ |
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static void p9_free_req(struct p9_client *c, struct p9_req_t *r) |
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{ |
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int tag = r->tc->tag; |
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p9_debug(P9_DEBUG_MUX, "clnt %p req %p tag: %d ", c, r, tag); |
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|
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r->status = REQ_STATUS_IDLE; |
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if (tag != P9_NOTAG && p9_idpool_check(tag, c->tagpool)) p9_idpool_put(tag, c->tagpool); |
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} |
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/** * p9_client_cb - call back from transport to client * c: client state * req: request received * */ void p9_client_cb(struct p9_client *c, struct p9_req_t *req) { |
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p9_debug(P9_DEBUG_MUX, " tag %d ", req->tc->tag); |
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wake_up(req->wq); |
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p9_debug(P9_DEBUG_MUX, "wakeup: %d ", req->tc->tag); |
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} EXPORT_SYMBOL(p9_client_cb); /** |
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* p9_parse_header - parse header arguments out of a packet * @pdu: packet to parse * @size: size of packet * @type: type of request * @tag: tag of packet * @rewind: set if we need to rewind offset afterwards */ int p9_parse_header(struct p9_fcall *pdu, int32_t *size, int8_t *type, int16_t *tag, int rewind) { int8_t r_type; int16_t r_tag; int32_t r_size; int offset = pdu->offset; int err; pdu->offset = 0; if (pdu->size == 0) pdu->size = 7; err = p9pdu_readf(pdu, 0, "dbw", &r_size, &r_type, &r_tag); if (err) goto rewind_and_exit; pdu->size = r_size; pdu->id = r_type; pdu->tag = r_tag; |
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p9_debug(P9_DEBUG_9P, "<<< size=%d type: %d tag: %d ", pdu->size, pdu->id, pdu->tag); |
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if (type) *type = r_type; if (tag) *tag = r_tag; if (size) *size = r_size; rewind_and_exit: if (rewind) pdu->offset = offset; return err; } EXPORT_SYMBOL(p9_parse_header); /** * p9_check_errors - check 9p packet for error return and process it * @c: current client instance * @req: request to parse and check for error conditions * * returns error code if one is discovered, otherwise returns 0 * * this will have to be more complicated if we have multiple * error packet types */ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req) { int8_t type; int err; |
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int ecode; |
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err = p9_parse_header(req->rc, NULL, &type, NULL, 0); |
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/* * dump the response from server * This should be after check errors which poplulate pdu_fcall. */ trace_9p_protocol_dump(c, req->rc); |
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if (err) { |
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p9_debug(P9_DEBUG_ERROR, "couldn't parse header %d ", err); |
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return err; } |
ca41bb3e2 [net/9p] Handle Z... |
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if (type != P9_RERROR && type != P9_RLERROR) return 0; |
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|
ca41bb3e2 [net/9p] Handle Z... |
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if (!p9_is_proto_dotl(c)) { char *ename; |
ca41bb3e2 [net/9p] Handle Z... |
482 |
err = p9pdu_readf(req->rc, c->proto_version, "s?d", |
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483 |
&ename, &ecode); |
ca41bb3e2 [net/9p] Handle Z... |
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if (err) goto out_err; |
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|
ca41bb3e2 [net/9p] Handle Z... |
487 488 |
if (p9_is_proto_dotu(c)) err = -ecode; |
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|
ca41bb3e2 [net/9p] Handle Z... |
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if (!err || !IS_ERR_VALUE(err)) { err = p9_errstr2errno(ename, strlen(ename)); |
4f7ebe807 net/9p: This patc... |
492 |
|
5d3851530 9p: Reduce object... |
493 494 495 |
p9_debug(P9_DEBUG_9P, "<<< RERROR (%d) %s ", -ecode, ename); |
4f7ebe807 net/9p: This patc... |
496 |
} |
abfa034e4 fs/9p: Update zer... |
497 |
kfree(ename); |
ca41bb3e2 [net/9p] Handle Z... |
498 499 500 |
} else { err = p9pdu_readf(req->rc, c->proto_version, "d", &ecode); err = -ecode; |
5d3851530 9p: Reduce object... |
501 502 |
p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d) ", -ecode); |
ca41bb3e2 [net/9p] Handle Z... |
503 |
} |
51a87c552 9p: rework client... |
504 |
|
51a87c552 9p: rework client... |
505 |
return err; |
4f7ebe807 net/9p: This patc... |
506 507 |
out_err: |
5d3851530 9p: Reduce object... |
508 509 |
p9_debug(P9_DEBUG_ERROR, "couldn't parse error%d ", err); |
4f7ebe807 net/9p: This patc... |
510 511 |
return err; |
51a87c552 9p: rework client... |
512 |
} |
abfa034e4 fs/9p: Update zer... |
513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 |
/** * p9_check_zc_errors - check 9p packet for error return and process it * @c: current client instance * @req: request to parse and check for error conditions * @in_hdrlen: Size of response protocol buffer. * * returns error code if one is discovered, otherwise returns 0 * * this will have to be more complicated if we have multiple * error packet types */ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req, char *uidata, int in_hdrlen, int kern_buf) { int err; int ecode; int8_t type; char *ename = NULL; err = p9_parse_header(req->rc, NULL, &type, NULL, 0); |
348b59012 net/9p: Convert n... |
534 535 536 537 538 |
/* * dump the response from server * This should be after parse_header which poplulate pdu_fcall. */ trace_9p_protocol_dump(c, req->rc); |
abfa034e4 fs/9p: Update zer... |
539 |
if (err) { |
5d3851530 9p: Reduce object... |
540 541 |
p9_debug(P9_DEBUG_ERROR, "couldn't parse header %d ", err); |
abfa034e4 fs/9p: Update zer... |
542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 |
return err; } if (type != P9_RERROR && type != P9_RLERROR) return 0; if (!p9_is_proto_dotl(c)) { /* Error is reported in string format */ uint16_t len; /* 7 = header size for RERROR, 2 is the size of string len; */ int inline_len = in_hdrlen - (7 + 2); /* Read the size of error string */ err = p9pdu_readf(req->rc, c->proto_version, "w", &len); if (err) goto out_err; ename = kmalloc(len + 1, GFP_NOFS); if (!ename) { err = -ENOMEM; goto out_err; } if (len <= inline_len) { /* We have error in protocol buffer itself */ if (pdu_read(req->rc, ename, len)) { err = -EFAULT; goto out_free; } } else { /* * Part of the data is in user space buffer. */ if (pdu_read(req->rc, ename, inline_len)) { err = -EFAULT; goto out_free; } if (kern_buf) { memcpy(ename + inline_len, uidata, len - inline_len); } else { err = copy_from_user(ename + inline_len, uidata, len - inline_len); if (err) { err = -EFAULT; goto out_free; } } } ename[len] = 0; if (p9_is_proto_dotu(c)) { /* For dotu we also have error code */ err = p9pdu_readf(req->rc, c->proto_version, "d", &ecode); if (err) goto out_free; err = -ecode; } if (!err || !IS_ERR_VALUE(err)) { err = p9_errstr2errno(ename, strlen(ename)); |
5d3851530 9p: Reduce object... |
603 604 605 |
p9_debug(P9_DEBUG_9P, "<<< RERROR (%d) %s ", -ecode, ename); |
abfa034e4 fs/9p: Update zer... |
606 607 608 609 610 |
} kfree(ename); } else { err = p9pdu_readf(req->rc, c->proto_version, "d", &ecode); err = -ecode; |
5d3851530 9p: Reduce object... |
611 612 |
p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d) ", -ecode); |
abfa034e4 fs/9p: Update zer... |
613 614 615 616 617 618 |
} return err; out_free: kfree(ename); out_err: |
5d3851530 9p: Reduce object... |
619 620 |
p9_debug(P9_DEBUG_ERROR, "couldn't parse error%d ", err); |
abfa034e4 fs/9p: Update zer... |
621 622 |
return err; } |
aca007633 9p: typo fixes an... |
623 624 |
static struct p9_req_t * p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...); |
51a87c552 9p: rework client... |
625 626 |
/** * p9_client_flush - flush (cancel) a request |
0e15597eb 9p: minor comment... |
627 628 |
* @c: client state * @oldreq: request to cancel |
51a87c552 9p: rework client... |
629 |
* |
aca007633 9p: typo fixes an... |
630 |
* This sents a flush for a particular request and links |
51a87c552 9p: rework client... |
631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 |
* the flush request to the original request. The current * code only supports a single flush request although the protocol * allows for multiple flush requests to be sent for a single request. * */ static int p9_client_flush(struct p9_client *c, struct p9_req_t *oldreq) { struct p9_req_t *req; int16_t oldtag; int err; err = p9_parse_header(oldreq->tc, NULL, NULL, &oldtag, 1); if (err) return err; |
5d3851530 9p: Reduce object... |
646 647 |
p9_debug(P9_DEBUG_9P, ">>> TFLUSH tag %d ", oldtag); |
51a87c552 9p: rework client... |
648 649 650 651 |
req = p9_client_rpc(c, P9_TFLUSH, "w", oldtag); if (IS_ERR(req)) return PTR_ERR(req); |
51a87c552 9p: rework client... |
652 |
|
1bab88b23 net/9p: handle co... |
653 654 655 656 657 658 659 660 |
/* if we haven't received a response for oldreq, remove it from the list. */ spin_lock(&c->lock); if (oldreq->status == REQ_STATUS_FLSH) list_del(&oldreq->req_list); spin_unlock(&c->lock); p9_free_req(c, req); |
51a87c552 9p: rework client... |
661 662 |
return 0; } |
abfa034e4 fs/9p: Update zer... |
663 664 665 |
static struct p9_req_t *p9_client_prepare_req(struct p9_client *c, int8_t type, int req_size, const char *fmt, va_list ap) |
91b8534fa 9p: make rpc code... |
666 |
{ |
51a87c552 9p: rework client... |
667 |
int tag, err; |
91b8534fa 9p: make rpc code... |
668 |
struct p9_req_t *req; |
91b8534fa 9p: make rpc code... |
669 |
|
5d3851530 9p: Reduce object... |
670 671 |
p9_debug(P9_DEBUG_MUX, "client %p op %d ", c, type); |
91b8534fa 9p: make rpc code... |
672 |
|
6d96d3ab7 9p: Make sure we ... |
673 674 675 676 677 678 |
/* we allow for any status other than disconnected */ if (c->status == Disconnected) return ERR_PTR(-EIO); /* if status is begin_disconnected we allow only clunk request */ if ((c->status == BeginDisconnect) && (type != P9_TCLUNK)) |
51a87c552 9p: rework client... |
679 |
return ERR_PTR(-EIO); |
91b8534fa 9p: make rpc code... |
680 |
|
91b8534fa 9p: make rpc code... |
681 |
tag = P9_NOTAG; |
51a87c552 9p: rework client... |
682 |
if (type != P9_TVERSION) { |
91b8534fa 9p: make rpc code... |
683 684 |
tag = p9_idpool_get(c->tagpool); if (tag < 0) |
51a87c552 9p: rework client... |
685 |
return ERR_PTR(-ENOMEM); |
91b8534fa 9p: make rpc code... |
686 |
} |
abfa034e4 fs/9p: Update zer... |
687 |
req = p9_tag_alloc(c, tag, req_size); |
51a87c552 9p: rework client... |
688 689 |
if (IS_ERR(req)) return req; |
91b8534fa 9p: make rpc code... |
690 |
|
51a87c552 9p: rework client... |
691 692 |
/* marshall the data */ p9pdu_prepare(req->tc, tag, type); |
342fee1d5 9P2010.L handshak... |
693 |
err = p9pdu_vwritef(req->tc, c->proto_version, fmt, ap); |
7b3bb3fe1 net/9p: Return er... |
694 695 |
if (err) goto reterr; |
348b59012 net/9p: Convert n... |
696 697 |
p9pdu_finalize(c, req->tc); trace_9p_client_req(c, type, tag); |
abfa034e4 fs/9p: Update zer... |
698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 |
return req; reterr: p9_free_req(c, req); return ERR_PTR(err); } /** * p9_client_rpc - issue a request and wait for a response * @c: client session * @type: type of request * @fmt: protocol format string (see protocol.c) * * Returns request structure (which client must free using p9_free_req) */ static struct p9_req_t * p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...) { va_list ap; int sigpending, err; unsigned long flags; struct p9_req_t *req; va_start(ap, fmt); req = p9_client_prepare_req(c, type, c->msize, fmt, ap); va_end(ap); if (IS_ERR(req)) return req; if (signal_pending(current)) { sigpending = 1; clear_thread_flag(TIF_SIGPENDING); } else sigpending = 0; |
91b8534fa 9p: make rpc code... |
732 733 734 |
err = c->trans_mod->request(c, req); if (err < 0) { |
3cd796782 net/9p: Handle ge... |
735 |
if (err != -ERESTARTSYS && err != -EFAULT) |
52f44e0d0 net/9p: Add waitq... |
736 |
c->status = Disconnected; |
91b8534fa 9p: make rpc code... |
737 738 |
goto reterr; } |
abfa034e4 fs/9p: Update zer... |
739 |
/* Wait for the response */ |
91b8534fa 9p: make rpc code... |
740 |
err = wait_event_interruptible(*req->wq, |
abfa034e4 fs/9p: Update zer... |
741 |
req->status >= REQ_STATUS_RCVD); |
91b8534fa 9p: make rpc code... |
742 743 |
if (req->status == REQ_STATUS_ERROR) { |
5d3851530 9p: Reduce object... |
744 745 |
p9_debug(P9_DEBUG_ERROR, "req_status error %d ", req->t_err); |
91b8534fa 9p: make rpc code... |
746 |
err = req->t_err; |
91b8534fa 9p: make rpc code... |
747 |
} |
1bab88b23 net/9p: handle co... |
748 |
if ((err == -ERESTARTSYS) && (c->status == Connected)) { |
5d3851530 9p: Reduce object... |
749 750 |
p9_debug(P9_DEBUG_MUX, "flushing "); |
91b8534fa 9p: make rpc code... |
751 |
sigpending = 1; |
91b8534fa 9p: make rpc code... |
752 |
clear_thread_flag(TIF_SIGPENDING); |
1bab88b23 net/9p: handle co... |
753 754 755 756 757 758 |
if (c->trans_mod->cancel(c, req)) p9_client_flush(c, req); /* if we received the response anyway, don't signal error */ if (req->status == REQ_STATUS_RCVD) err = 0; |
91b8534fa 9p: make rpc code... |
759 |
} |
91b8534fa 9p: make rpc code... |
760 761 762 763 764 |
if (sigpending) { spin_lock_irqsave(¤t->sighand->siglock, flags); recalc_sigpending(); spin_unlock_irqrestore(¤t->sighand->siglock, flags); } |
91b8534fa 9p: make rpc code... |
765 766 |
if (err < 0) goto reterr; |
51a87c552 9p: rework client... |
767 |
err = p9_check_errors(c, req); |
348b59012 net/9p: Convert n... |
768 769 |
trace_9p_client_res(c, type, req->rc->tag, err); if (!err) |
51a87c552 9p: rework client... |
770 |
return req; |
abfa034e4 fs/9p: Update zer... |
771 |
reterr: |
abfa034e4 fs/9p: Update zer... |
772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 |
p9_free_req(c, req); return ERR_PTR(err); } /** * p9_client_zc_rpc - issue a request and wait for a response * @c: client session * @type: type of request * @uidata: user bffer that should be ued for zero copy read * @uodata: user buffer that shoud be user for zero copy write * @inlen: read buffer size * @olen: write buffer size * @hdrlen: reader header size, This is the size of response protocol data * @fmt: protocol format string (see protocol.c) * * Returns request structure (which client must free using p9_free_req) */ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type, char *uidata, char *uodata, int inlen, int olen, int in_hdrlen, int kern_buf, const char *fmt, ...) { va_list ap; int sigpending, err; unsigned long flags; struct p9_req_t *req; va_start(ap, fmt); /* * We allocate a inline protocol data of only 4k bytes. * The actual content is passed in zero-copy fashion. */ req = p9_client_prepare_req(c, type, P9_ZC_HDR_SZ, fmt, ap); va_end(ap); if (IS_ERR(req)) return req; if (signal_pending(current)) { sigpending = 1; clear_thread_flag(TIF_SIGPENDING); } else sigpending = 0; /* If we are called with KERNEL_DS force kern_buf */ if (segment_eq(get_fs(), KERNEL_DS)) kern_buf = 1; err = c->trans_mod->zc_request(c, req, uidata, uodata, inlen, olen, in_hdrlen, kern_buf); if (err < 0) { if (err == -EIO) c->status = Disconnected; goto reterr; } if (req->status == REQ_STATUS_ERROR) { |
5d3851530 9p: Reduce object... |
827 828 |
p9_debug(P9_DEBUG_ERROR, "req_status error %d ", req->t_err); |
abfa034e4 fs/9p: Update zer... |
829 830 831 |
err = req->t_err; } if ((err == -ERESTARTSYS) && (c->status == Connected)) { |
5d3851530 9p: Reduce object... |
832 833 |
p9_debug(P9_DEBUG_MUX, "flushing "); |
abfa034e4 fs/9p: Update zer... |
834 835 |
sigpending = 1; clear_thread_flag(TIF_SIGPENDING); |
91b8534fa 9p: make rpc code... |
836 |
|
abfa034e4 fs/9p: Update zer... |
837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 |
if (c->trans_mod->cancel(c, req)) p9_client_flush(c, req); /* if we received the response anyway, don't signal error */ if (req->status == REQ_STATUS_RCVD) err = 0; } if (sigpending) { spin_lock_irqsave(¤t->sighand->siglock, flags); recalc_sigpending(); spin_unlock_irqrestore(¤t->sighand->siglock, flags); } if (err < 0) goto reterr; err = p9_check_zc_errors(c, req, uidata, in_hdrlen, kern_buf); |
348b59012 net/9p: Convert n... |
853 854 |
trace_9p_client_res(c, type, req->rc->tag, err); if (!err) |
abfa034e4 fs/9p: Update zer... |
855 |
return req; |
91b8534fa 9p: make rpc code... |
856 857 |
reterr: p9_free_req(c, req); |
51a87c552 9p: rework client... |
858 |
return ERR_PTR(err); |
91b8534fa 9p: make rpc code... |
859 |
} |
5503ac565 9p: remove unnece... |
860 861 |
static struct p9_fid *p9_fid_create(struct p9_client *clnt) { |
9f3e9bbe6 unsigned fid->fid... |
862 |
int ret; |
5503ac565 9p: remove unnece... |
863 |
struct p9_fid *fid; |
cac23d650 9p: Make all clie... |
864 |
unsigned long flags; |
5503ac565 9p: remove unnece... |
865 |
|
5d3851530 9p: Reduce object... |
866 867 |
p9_debug(P9_DEBUG_FID, "clnt %p ", clnt); |
5503ac565 9p: remove unnece... |
868 869 870 |
fid = kmalloc(sizeof(struct p9_fid), GFP_KERNEL); if (!fid) return ERR_PTR(-ENOMEM); |
9f3e9bbe6 unsigned fid->fid... |
871 |
ret = p9_idpool_get(clnt->fidpool); |
24e94de41 net/9p: fid->fid ... |
872 |
if (ret < 0) { |
9f3e9bbe6 unsigned fid->fid... |
873 |
ret = -ENOSPC; |
5503ac565 9p: remove unnece... |
874 875 |
goto error; } |
9f3e9bbe6 unsigned fid->fid... |
876 |
fid->fid = ret; |
5503ac565 9p: remove unnece... |
877 878 879 |
memset(&fid->qid, 0, sizeof(struct p9_qid)); fid->mode = -1; |
f8b9d53a3 CRED: Wrap task c... |
880 |
fid->uid = current_fsuid(); |
5503ac565 9p: remove unnece... |
881 |
fid->clnt = clnt; |
3e2796a90 9p: fix readdir c... |
882 |
fid->rdir = NULL; |
cac23d650 9p: Make all clie... |
883 |
spin_lock_irqsave(&clnt->lock, flags); |
5503ac565 9p: remove unnece... |
884 |
list_add(&fid->flist, &clnt->fidlist); |
cac23d650 9p: Make all clie... |
885 |
spin_unlock_irqrestore(&clnt->lock, flags); |
5503ac565 9p: remove unnece... |
886 887 888 889 890 |
return fid; error: kfree(fid); |
9f3e9bbe6 unsigned fid->fid... |
891 |
return ERR_PTR(ret); |
5503ac565 9p: remove unnece... |
892 893 894 895 896 |
} static void p9_fid_destroy(struct p9_fid *fid) { struct p9_client *clnt; |
cac23d650 9p: Make all clie... |
897 |
unsigned long flags; |
5503ac565 9p: remove unnece... |
898 |
|
5d3851530 9p: Reduce object... |
899 900 |
p9_debug(P9_DEBUG_FID, "fid %d ", fid->fid); |
5503ac565 9p: remove unnece... |
901 902 |
clnt = fid->clnt; p9_idpool_put(fid->fid, clnt->fidpool); |
cac23d650 9p: Make all clie... |
903 |
spin_lock_irqsave(&clnt->lock, flags); |
5503ac565 9p: remove unnece... |
904 |
list_del(&fid->flist); |
cac23d650 9p: Make all clie... |
905 |
spin_unlock_irqrestore(&clnt->lock, flags); |
3e2796a90 9p: fix readdir c... |
906 |
kfree(fid->rdir); |
5503ac565 9p: remove unnece... |
907 908 |
kfree(fid); } |
8a0dc95fd 9p: transport API... |
909 |
|
32a875adc 9p: client code c... |
910 |
static int p9_client_version(struct p9_client *c) |
bd238fb43 9p: Reorganizatio... |
911 |
{ |
6936bf60d 9p: encapsulate v... |
912 |
int err = 0; |
51a87c552 9p: rework client... |
913 914 915 |
struct p9_req_t *req; char *version; int msize; |
bd238fb43 9p: Reorganizatio... |
916 |
|
5d3851530 9p: Reduce object... |
917 918 919 |
p9_debug(P9_DEBUG_9P, ">>> TVERSION msize %d protocol %d ", c->msize, c->proto_version); |
c5a7697da 9P2010.L handshak... |
920 921 |
switch (c->proto_version) { |
45bc21edb 9p: Change the na... |
922 |
case p9_proto_2000L: |
c5a7697da 9P2010.L handshak... |
923 |
req = p9_client_rpc(c, P9_TVERSION, "ds", |
45bc21edb 9p: Change the na... |
924 |
c->msize, "9P2000.L"); |
c5a7697da 9P2010.L handshak... |
925 926 927 928 929 930 931 932 933 934 935 936 937 |
break; case p9_proto_2000u: req = p9_client_rpc(c, P9_TVERSION, "ds", c->msize, "9P2000.u"); break; case p9_proto_legacy: req = p9_client_rpc(c, P9_TVERSION, "ds", c->msize, "9P2000"); break; default: return -EINVAL; break; } |
51a87c552 9p: rework client... |
938 939 |
if (IS_ERR(req)) return PTR_ERR(req); |
6936bf60d 9p: encapsulate v... |
940 |
|
342fee1d5 9P2010.L handshak... |
941 |
err = p9pdu_readf(req->rc, c->proto_version, "ds", &msize, &version); |
51a87c552 9p: rework client... |
942 |
if (err) { |
5d3851530 9p: Reduce object... |
943 944 |
p9_debug(P9_DEBUG_9P, "version error %d ", err); |
348b59012 net/9p: Convert n... |
945 |
trace_9p_protocol_dump(c, req->rc); |
6936bf60d 9p: encapsulate v... |
946 |
goto error; |
51a87c552 9p: rework client... |
947 |
} |
6936bf60d 9p: encapsulate v... |
948 |
|
5d3851530 9p: Reduce object... |
949 950 |
p9_debug(P9_DEBUG_9P, "<<< RVERSION msize %d %s ", msize, version); |
45bc21edb 9p: Change the na... |
951 952 |
if (!strncmp(version, "9P2000.L", 8)) c->proto_version = p9_proto_2000L; |
c5a7697da 9P2010.L handshak... |
953 |
else if (!strncmp(version, "9P2000.u", 8)) |
342fee1d5 9P2010.L handshak... |
954 955 956 |
c->proto_version = p9_proto_2000u; else if (!strncmp(version, "9P2000", 6)) c->proto_version = p9_proto_legacy; |
6936bf60d 9p: encapsulate v... |
957 958 959 960 |
else { err = -EREMOTEIO; goto error; } |
51a87c552 9p: rework client... |
961 962 |
if (msize < c->msize) c->msize = msize; |
6936bf60d 9p: encapsulate v... |
963 964 |
error: |
51a87c552 9p: rework client... |
965 966 |
kfree(version); p9_free_req(c, req); |
6936bf60d 9p: encapsulate v... |
967 968 969 |
return err; } |
6936bf60d 9p: encapsulate v... |
970 971 972 973 974 975 976 |
struct p9_client *p9_client_create(const char *dev_name, char *options) { int err; struct p9_client *clnt; err = 0; |
bd238fb43 9p: Reorganizatio... |
977 978 979 |
clnt = kmalloc(sizeof(struct p9_client), GFP_KERNEL); if (!clnt) return ERR_PTR(-ENOMEM); |
72029fe85 9p: implement pro... |
980 |
clnt->trans_mod = NULL; |
bb8ffdfc3 9p: propagate par... |
981 |
clnt->trans = NULL; |
bd238fb43 9p: Reorganizatio... |
982 |
spin_lock_init(&clnt->lock); |
bd238fb43 9p: Reorganizatio... |
983 |
INIT_LIST_HEAD(&clnt->fidlist); |
bd238fb43 9p: Reorganizatio... |
984 |
|
fe1cbabae net/9p: p9_idpool... |
985 986 987 |
err = p9_tag_init(clnt); if (err < 0) goto free_client; |
fea511a64 9p: move request ... |
988 |
|
bb8ffdfc3 9p: propagate par... |
989 990 |
err = parse_opts(options, clnt); if (err < 0) |
fe1cbabae net/9p: p9_idpool... |
991 |
goto destroy_tagpool; |
bb8ffdfc3 9p: propagate par... |
992 |
|
a17d1720a 9p: default 9p tr... |
993 994 |
if (!clnt->trans_mod) clnt->trans_mod = v9fs_get_default_trans(); |
8a0dc95fd 9p: transport API... |
995 996 |
if (clnt->trans_mod == NULL) { err = -EPROTONOSUPPORT; |
5d3851530 9p: Reduce object... |
997 998 999 |
p9_debug(P9_DEBUG_ERROR, "No transport defined or default transport "); |
fe1cbabae net/9p: p9_idpool... |
1000 |
goto destroy_tagpool; |
8781ff949 9p: fix p9_client... |
1001 1002 1003 1004 1005 |
} clnt->fidpool = p9_idpool_create(); if (IS_ERR(clnt->fidpool)) { err = PTR_ERR(clnt->fidpool); |
8781ff949 9p: fix p9_client... |
1006 |
goto put_trans; |
8a0dc95fd 9p: transport API... |
1007 |
} |
5d3851530 9p: Reduce object... |
1008 1009 1010 |
p9_debug(P9_DEBUG_MUX, "clnt %p trans %p msize %d protocol %d ", clnt, clnt->trans_mod, clnt->msize, clnt->proto_version); |
8a0dc95fd 9p: transport API... |
1011 |
|
8b81ef589 9p: consolidate t... |
1012 1013 |
err = clnt->trans_mod->create(clnt, dev_name, options); if (err) |
8781ff949 9p: fix p9_client... |
1014 |
goto destroy_fidpool; |
bd238fb43 9p: Reorganizatio... |
1015 |
|
c9ffb05ca net/9p: Fix the m... |
1016 1017 |
if (clnt->msize > clnt->trans_mod->maxsize) clnt->msize = clnt->trans_mod->maxsize; |
8a0dc95fd 9p: transport API... |
1018 |
|
6936bf60d 9p: encapsulate v... |
1019 |
err = p9_client_version(clnt); |
bd238fb43 9p: Reorganizatio... |
1020 |
if (err) |
8781ff949 9p: fix p9_client... |
1021 |
goto close_trans; |
bd238fb43 9p: Reorganizatio... |
1022 |
|
bd238fb43 9p: Reorganizatio... |
1023 |
return clnt; |
8781ff949 9p: fix p9_client... |
1024 1025 1026 1027 1028 1029 |
close_trans: clnt->trans_mod->close(clnt); destroy_fidpool: p9_idpool_destroy(clnt->fidpool); put_trans: v9fs_put_trans(clnt->trans_mod); |
fe1cbabae net/9p: p9_idpool... |
1030 1031 |
destroy_tagpool: p9_idpool_destroy(clnt->tagpool); |
8781ff949 9p: fix p9_client... |
1032 1033 |
free_client: kfree(clnt); |
bd238fb43 9p: Reorganizatio... |
1034 1035 1036 1037 1038 1039 1040 |
return ERR_PTR(err); } EXPORT_SYMBOL(p9_client_create); void p9_client_destroy(struct p9_client *clnt) { struct p9_fid *fid, *fidptr; |
5d3851530 9p: Reduce object... |
1041 1042 |
p9_debug(P9_DEBUG_MUX, "clnt %p ", clnt); |
bd238fb43 9p: Reorganizatio... |
1043 |
|
8b81ef589 9p: consolidate t... |
1044 1045 |
if (clnt->trans_mod) clnt->trans_mod->close(clnt); |
bd238fb43 9p: Reorganizatio... |
1046 |
|
72029fe85 9p: implement pro... |
1047 |
v9fs_put_trans(clnt->trans_mod); |
6d96d3ab7 9p: Make sure we ... |
1048 |
list_for_each_entry_safe(fid, fidptr, &clnt->fidlist, flist) { |
5d3851530 9p: Reduce object... |
1049 1050 |
pr_info("Found fid %d not clunked ", fid->fid); |
bd238fb43 9p: Reorganizatio... |
1051 |
p9_fid_destroy(fid); |
6d96d3ab7 9p: Make sure we ... |
1052 |
} |
bd238fb43 9p: Reorganizatio... |
1053 |
|
0af8887eb 9p: fix a race co... |
1054 1055 |
if (clnt->fidpool) p9_idpool_destroy(clnt->fidpool); |
fea511a64 9p: move request ... |
1056 |
p9_tag_cleanup(clnt); |
bd238fb43 9p: Reorganizatio... |
1057 1058 1059 1060 1061 1062 |
kfree(clnt); } EXPORT_SYMBOL(p9_client_destroy); void p9_client_disconnect(struct p9_client *clnt) { |
5d3851530 9p: Reduce object... |
1063 1064 |
p9_debug(P9_DEBUG_9P, "clnt %p ", clnt); |
8b81ef589 9p: consolidate t... |
1065 |
clnt->status = Disconnected; |
bd238fb43 9p: Reorganizatio... |
1066 1067 |
} EXPORT_SYMBOL(p9_client_disconnect); |
6d96d3ab7 9p: Make sure we ... |
1068 1069 |
void p9_client_begin_disconnect(struct p9_client *clnt) { |
5d3851530 9p: Reduce object... |
1070 1071 |
p9_debug(P9_DEBUG_9P, "clnt %p ", clnt); |
6d96d3ab7 9p: Make sure we ... |
1072 1073 1074 |
clnt->status = BeginDisconnect; } EXPORT_SYMBOL(p9_client_begin_disconnect); |
bd238fb43 9p: Reorganizatio... |
1075 |
struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid, |
ba17674fe 9p: attach-per-user |
1076 |
char *uname, u32 n_uname, char *aname) |
bd238fb43 9p: Reorganizatio... |
1077 |
{ |
348b59012 net/9p: Convert n... |
1078 |
int err = 0; |
51a87c552 9p: rework client... |
1079 |
struct p9_req_t *req; |
bd238fb43 9p: Reorganizatio... |
1080 |
struct p9_fid *fid; |
51a87c552 9p: rework client... |
1081 |
struct p9_qid qid; |
bd238fb43 9p: Reorganizatio... |
1082 |
|
bd238fb43 9p: Reorganizatio... |
1083 |
|
5d3851530 9p: Reduce object... |
1084 1085 1086 |
p9_debug(P9_DEBUG_9P, ">>> TATTACH afid %d uname %s aname %s ", afid ? afid->fid : -1, uname, aname); |
bd238fb43 9p: Reorganizatio... |
1087 1088 1089 1090 1091 1092 |
fid = p9_fid_create(clnt); if (IS_ERR(fid)) { err = PTR_ERR(fid); fid = NULL; goto error; } |
51a87c552 9p: rework client... |
1093 1094 1095 1096 |
req = p9_client_rpc(clnt, P9_TATTACH, "ddss?d", fid->fid, afid ? afid->fid : P9_NOFID, uname, aname, n_uname); if (IS_ERR(req)) { err = PTR_ERR(req); |
bd238fb43 9p: Reorganizatio... |
1097 1098 |
goto error; } |
342fee1d5 9P2010.L handshak... |
1099 |
err = p9pdu_readf(req->rc, clnt->proto_version, "Q", &qid); |
51a87c552 9p: rework client... |
1100 |
if (err) { |
348b59012 net/9p: Convert n... |
1101 |
trace_9p_protocol_dump(clnt, req->rc); |
51a87c552 9p: rework client... |
1102 |
p9_free_req(clnt, req); |
bd238fb43 9p: Reorganizatio... |
1103 |
goto error; |
51a87c552 9p: rework client... |
1104 |
} |
bd238fb43 9p: Reorganizatio... |
1105 |
|
5d3851530 9p: Reduce object... |
1106 1107 1108 |
p9_debug(P9_DEBUG_9P, "<<< RATTACH qid %x.%llx.%x ", qid.type, (unsigned long long)qid.path, qid.version); |
51a87c552 9p: rework client... |
1109 1110 1111 1112 |
memmove(&fid->qid, &qid, sizeof(struct p9_qid)); p9_free_req(clnt, req); |
bd238fb43 9p: Reorganizatio... |
1113 1114 1115 |
return fid; error: |
bd238fb43 9p: Reorganizatio... |
1116 1117 1118 1119 1120 |
if (fid) p9_fid_destroy(fid); return ERR_PTR(err); } EXPORT_SYMBOL(p9_client_attach); |
b76225e22 net/9p: nwname sh... |
1121 1122 |
struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname, char **wnames, int clone) |
bd238fb43 9p: Reorganizatio... |
1123 1124 |
{ int err; |
bd238fb43 9p: Reorganizatio... |
1125 1126 |
struct p9_client *clnt; struct p9_fid *fid; |
51a87c552 9p: rework client... |
1127 1128 |
struct p9_qid *wqids; struct p9_req_t *req; |
b76225e22 net/9p: nwname sh... |
1129 |
uint16_t nwqids, count; |
bd238fb43 9p: Reorganizatio... |
1130 |
|
bd238fb43 9p: Reorganizatio... |
1131 |
err = 0; |
62b2be591 fs/9p, net/9p: me... |
1132 |
wqids = NULL; |
bd238fb43 9p: Reorganizatio... |
1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 |
clnt = oldfid->clnt; if (clone) { fid = p9_fid_create(clnt); if (IS_ERR(fid)) { err = PTR_ERR(fid); fid = NULL; goto error; } fid->uid = oldfid->uid; } else fid = oldfid; |
51a87c552 9p: rework client... |
1145 |
|
5d3851530 9p: Reduce object... |
1146 1147 1148 |
p9_debug(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %ud wname[0] %s ", oldfid->fid, fid->fid, nwname, wnames ? wnames[0] : NULL); |
51a87c552 9p: rework client... |
1149 1150 1151 1152 1153 |
req = p9_client_rpc(clnt, P9_TWALK, "ddT", oldfid->fid, fid->fid, nwname, wnames); if (IS_ERR(req)) { err = PTR_ERR(req); |
bd238fb43 9p: Reorganizatio... |
1154 1155 |
goto error; } |
342fee1d5 9P2010.L handshak... |
1156 |
err = p9pdu_readf(req->rc, clnt->proto_version, "R", &nwqids, &wqids); |
e7f4b8f1a 9p: Improve debug... |
1157 |
if (err) { |
348b59012 net/9p: Convert n... |
1158 |
trace_9p_protocol_dump(clnt, req->rc); |
e7f4b8f1a 9p: Improve debug... |
1159 |
p9_free_req(clnt, req); |
51a87c552 9p: rework client... |
1160 |
goto clunk_fid; |
e7f4b8f1a 9p: Improve debug... |
1161 1162 |
} p9_free_req(clnt, req); |
bd238fb43 9p: Reorganizatio... |
1163 |
|
5d3851530 9p: Reduce object... |
1164 1165 |
p9_debug(P9_DEBUG_9P, "<<< RWALK nwqid %d: ", nwqids); |
51a87c552 9p: rework client... |
1166 1167 |
if (nwqids != nwname) { |
bd238fb43 9p: Reorganizatio... |
1168 1169 1170 |
err = -ENOENT; goto clunk_fid; } |
51a87c552 9p: rework client... |
1171 |
for (count = 0; count < nwqids; count++) |
5d3851530 9p: Reduce object... |
1172 1173 |
p9_debug(P9_DEBUG_9P, "<<< [%d] %x.%llx.%x ", |
b0d5fdef5 net/9p: fix print... |
1174 1175 |
count, wqids[count].type, (unsigned long long)wqids[count].path, |
51a87c552 9p: rework client... |
1176 |
wqids[count].version); |
bd238fb43 9p: Reorganizatio... |
1177 |
if (nwname) |
51a87c552 9p: rework client... |
1178 |
memmove(&fid->qid, &wqids[nwqids - 1], sizeof(struct p9_qid)); |
bd238fb43 9p: Reorganizatio... |
1179 1180 |
else fid->qid = oldfid->qid; |
62b2be591 fs/9p, net/9p: me... |
1181 |
kfree(wqids); |
bd238fb43 9p: Reorganizatio... |
1182 1183 1184 |
return fid; clunk_fid: |
62b2be591 fs/9p, net/9p: me... |
1185 |
kfree(wqids); |
51a87c552 9p: rework client... |
1186 1187 |
p9_client_clunk(fid); fid = NULL; |
bd238fb43 9p: Reorganizatio... |
1188 1189 |
error: |
bd238fb43 9p: Reorganizatio... |
1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 |
if (fid && (fid != oldfid)) p9_fid_destroy(fid); return ERR_PTR(err); } EXPORT_SYMBOL(p9_client_walk); int p9_client_open(struct p9_fid *fid, int mode) { int err; |
bd238fb43 9p: Reorganizatio... |
1200 |
struct p9_client *clnt; |
51a87c552 9p: rework client... |
1201 1202 1203 |
struct p9_req_t *req; struct p9_qid qid; int iounit; |
bd238fb43 9p: Reorganizatio... |
1204 |
|
bd238fb43 9p: Reorganizatio... |
1205 |
clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
1206 1207 |
p9_debug(P9_DEBUG_9P, ">>> %s fid %d mode %d ", |
ef56547ef 9p: Implement LOPEN |
1208 1209 |
p9_is_proto_dotl(clnt) ? "TLOPEN" : "TOPEN", fid->fid, mode); err = 0; |
bd238fb43 9p: Reorganizatio... |
1210 1211 1212 |
if (fid->mode != -1) return -EINVAL; |
ef56547ef 9p: Implement LOPEN |
1213 1214 1215 1216 |
if (p9_is_proto_dotl(clnt)) req = p9_client_rpc(clnt, P9_TLOPEN, "dd", fid->fid, mode); else req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode); |
51a87c552 9p: rework client... |
1217 1218 1219 |
if (IS_ERR(req)) { err = PTR_ERR(req); goto error; |
bd238fb43 9p: Reorganizatio... |
1220 |
} |
342fee1d5 9P2010.L handshak... |
1221 |
err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", &qid, &iounit); |
e7f4b8f1a 9p: Improve debug... |
1222 |
if (err) { |
348b59012 net/9p: Convert n... |
1223 |
trace_9p_protocol_dump(clnt, req->rc); |
e7f4b8f1a 9p: Improve debug... |
1224 1225 |
goto free_and_error; } |
51a87c552 9p: rework client... |
1226 |
|
5d3851530 9p: Reduce object... |
1227 1228 |
p9_debug(P9_DEBUG_9P, "<<< %s qid %x.%llx.%x iounit %x ", |
ef56547ef 9p: Implement LOPEN |
1229 1230 |
p9_is_proto_dotl(clnt) ? "RLOPEN" : "ROPEN", qid.type, (unsigned long long)qid.path, qid.version, iounit); |
bd238fb43 9p: Reorganizatio... |
1231 1232 |
fid->mode = mode; |
51a87c552 9p: rework client... |
1233 |
fid->iounit = iounit; |
bd238fb43 9p: Reorganizatio... |
1234 |
|
e7f4b8f1a 9p: Improve debug... |
1235 1236 |
free_and_error: p9_free_req(clnt, req); |
51a87c552 9p: rework client... |
1237 |
error: |
bd238fb43 9p: Reorganizatio... |
1238 1239 1240 |
return err; } EXPORT_SYMBOL(p9_client_open); |
5643135a2 fs/9p: This patch... |
1241 1242 1243 1244 1245 1246 1247 |
int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode, gid_t gid, struct p9_qid *qid) { int err = 0; struct p9_client *clnt; struct p9_req_t *req; int iounit; |
5d3851530 9p: Reduce object... |
1248 |
p9_debug(P9_DEBUG_9P, |
5643135a2 fs/9p: This patch... |
1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 |
">>> TLCREATE fid %d name %s flags %d mode %d gid %d ", ofid->fid, name, flags, mode, gid); clnt = ofid->clnt; if (ofid->mode != -1) return -EINVAL; req = p9_client_rpc(clnt, P9_TLCREATE, "dsddd", ofid->fid, name, flags, mode, gid); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", qid, &iounit); if (err) { |
348b59012 net/9p: Convert n... |
1266 |
trace_9p_protocol_dump(clnt, req->rc); |
5643135a2 fs/9p: This patch... |
1267 1268 |
goto free_and_error; } |
5d3851530 9p: Reduce object... |
1269 1270 |
p9_debug(P9_DEBUG_9P, "<<< RLCREATE qid %x.%llx.%x iounit %x ", |
5643135a2 fs/9p: This patch... |
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 |
qid->type, (unsigned long long)qid->path, qid->version, iounit); ofid->mode = mode; ofid->iounit = iounit; free_and_error: p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_create_dotl); |
bd238fb43 9p: Reorganizatio... |
1284 1285 1286 1287 |
int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode, char *extension) { int err; |
bd238fb43 9p: Reorganizatio... |
1288 |
struct p9_client *clnt; |
51a87c552 9p: rework client... |
1289 1290 1291 |
struct p9_req_t *req; struct p9_qid qid; int iounit; |
bd238fb43 9p: Reorganizatio... |
1292 |
|
5d3851530 9p: Reduce object... |
1293 1294 |
p9_debug(P9_DEBUG_9P, ">>> TCREATE fid %d name %s perm %d mode %d ", |
51a87c552 9p: rework client... |
1295 |
fid->fid, name, perm, mode); |
bd238fb43 9p: Reorganizatio... |
1296 |
err = 0; |
bd238fb43 9p: Reorganizatio... |
1297 1298 1299 1300 |
clnt = fid->clnt; if (fid->mode != -1) return -EINVAL; |
51a87c552 9p: rework client... |
1301 1302 1303 1304 1305 |
req = p9_client_rpc(clnt, P9_TCREATE, "dsdb?s", fid->fid, name, perm, mode, extension); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; |
bd238fb43 9p: Reorganizatio... |
1306 |
} |
342fee1d5 9P2010.L handshak... |
1307 |
err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", &qid, &iounit); |
e7f4b8f1a 9p: Improve debug... |
1308 |
if (err) { |
348b59012 net/9p: Convert n... |
1309 |
trace_9p_protocol_dump(clnt, req->rc); |
e7f4b8f1a 9p: Improve debug... |
1310 1311 |
goto free_and_error; } |
51a87c552 9p: rework client... |
1312 |
|
5d3851530 9p: Reduce object... |
1313 1314 |
p9_debug(P9_DEBUG_9P, "<<< RCREATE qid %x.%llx.%x iounit %x ", |
b0d5fdef5 net/9p: fix print... |
1315 1316 1317 |
qid.type, (unsigned long long)qid.path, qid.version, iounit); |
bd238fb43 9p: Reorganizatio... |
1318 1319 |
fid->mode = mode; |
51a87c552 9p: rework client... |
1320 |
fid->iounit = iounit; |
bd238fb43 9p: Reorganizatio... |
1321 |
|
e7f4b8f1a 9p: Improve debug... |
1322 1323 |
free_and_error: p9_free_req(clnt, req); |
51a87c552 9p: rework client... |
1324 |
error: |
bd238fb43 9p: Reorganizatio... |
1325 1326 1327 |
return err; } EXPORT_SYMBOL(p9_client_fcreate); |
50cc42ff3 9p: Define and im... |
1328 1329 1330 1331 1332 1333 |
int p9_client_symlink(struct p9_fid *dfid, char *name, char *symtgt, gid_t gid, struct p9_qid *qid) { int err = 0; struct p9_client *clnt; struct p9_req_t *req; |
5d3851530 9p: Reduce object... |
1334 1335 |
p9_debug(P9_DEBUG_9P, ">>> TSYMLINK dfid %d name %s symtgt %s ", |
50cc42ff3 9p: Define and im... |
1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 |
dfid->fid, name, symtgt); clnt = dfid->clnt; req = p9_client_rpc(clnt, P9_TSYMLINK, "dssd", dfid->fid, name, symtgt, gid); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid); if (err) { |
348b59012 net/9p: Convert n... |
1348 |
trace_9p_protocol_dump(clnt, req->rc); |
50cc42ff3 9p: Define and im... |
1349 1350 |
goto free_and_error; } |
5d3851530 9p: Reduce object... |
1351 1352 |
p9_debug(P9_DEBUG_9P, "<<< RSYMLINK qid %x.%llx.%x ", |
50cc42ff3 9p: Define and im... |
1353 1354 1355 1356 1357 1358 1359 1360 |
qid->type, (unsigned long long)qid->path, qid->version); free_and_error: p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_symlink); |
652df9a7f 9p: Define and im... |
1361 1362 1363 1364 |
int p9_client_link(struct p9_fid *dfid, struct p9_fid *oldfid, char *newname) { struct p9_client *clnt; struct p9_req_t *req; |
5d3851530 9p: Reduce object... |
1365 1366 |
p9_debug(P9_DEBUG_9P, ">>> TLINK dfid %d oldfid %d newname %s ", |
652df9a7f 9p: Define and im... |
1367 1368 1369 1370 1371 1372 |
dfid->fid, oldfid->fid, newname); clnt = dfid->clnt; req = p9_client_rpc(clnt, P9_TLINK, "dds", dfid->fid, oldfid->fid, newname); if (IS_ERR(req)) return PTR_ERR(req); |
5d3851530 9p: Reduce object... |
1373 1374 |
p9_debug(P9_DEBUG_9P, "<<< RLINK "); |
652df9a7f 9p: Define and im... |
1375 1376 1377 1378 |
p9_free_req(clnt, req); return 0; } EXPORT_SYMBOL(p9_client_link); |
b165d6014 9p: Add datasync ... |
1379 |
int p9_client_fsync(struct p9_fid *fid, int datasync) |
920e65dc6 [9p] Introduce cl... |
1380 1381 1382 1383 |
{ int err; struct p9_client *clnt; struct p9_req_t *req; |
5d3851530 9p: Reduce object... |
1384 1385 |
p9_debug(P9_DEBUG_9P, ">>> TFSYNC fid %d datasync:%d ", |
b165d6014 9p: Add datasync ... |
1386 |
fid->fid, datasync); |
920e65dc6 [9p] Introduce cl... |
1387 1388 |
err = 0; clnt = fid->clnt; |
b165d6014 9p: Add datasync ... |
1389 |
req = p9_client_rpc(clnt, P9_TFSYNC, "dd", fid->fid, datasync); |
920e65dc6 [9p] Introduce cl... |
1390 1391 1392 1393 |
if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
5d3851530 9p: Reduce object... |
1394 1395 |
p9_debug(P9_DEBUG_9P, "<<< RFSYNC fid %d ", fid->fid); |
920e65dc6 [9p] Introduce cl... |
1396 1397 1398 1399 1400 1401 1402 |
p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_fsync); |
bd238fb43 9p: Reorganizatio... |
1403 1404 1405 |
int p9_client_clunk(struct p9_fid *fid) { int err; |
bd238fb43 9p: Reorganizatio... |
1406 |
struct p9_client *clnt; |
51a87c552 9p: rework client... |
1407 |
struct p9_req_t *req; |
bd238fb43 9p: Reorganizatio... |
1408 |
|
8e44a0805 net/9p: Add a War... |
1409 |
if (!fid) { |
5d3851530 9p: Reduce object... |
1410 1411 1412 |
pr_warn("%s (%d): Trying to clunk with NULL fid ", __func__, task_pid_nr(current)); |
8e44a0805 net/9p: Add a War... |
1413 1414 1415 |
dump_stack(); return 0; } |
5d3851530 9p: Reduce object... |
1416 1417 |
p9_debug(P9_DEBUG_9P, ">>> TCLUNK fid %d ", fid->fid); |
bd238fb43 9p: Reorganizatio... |
1418 |
err = 0; |
bd238fb43 9p: Reorganizatio... |
1419 |
clnt = fid->clnt; |
51a87c552 9p: rework client... |
1420 1421 1422 1423 |
req = p9_client_rpc(clnt, P9_TCLUNK, "d", fid->fid); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; |
bd238fb43 9p: Reorganizatio... |
1424 |
} |
5d3851530 9p: Reduce object... |
1425 1426 |
p9_debug(P9_DEBUG_9P, "<<< RCLUNK fid %d ", fid->fid); |
bd238fb43 9p: Reorganizatio... |
1427 |
|
51a87c552 9p: rework client... |
1428 |
p9_free_req(clnt, req); |
51a87c552 9p: rework client... |
1429 |
error: |
5034990e2 fs/9p: Fid is not... |
1430 1431 1432 1433 |
/* * Fid is not valid even after a failed clunk */ p9_fid_destroy(fid); |
bd238fb43 9p: Reorganizatio... |
1434 1435 1436 1437 1438 1439 1440 |
return err; } EXPORT_SYMBOL(p9_client_clunk); int p9_client_remove(struct p9_fid *fid) { int err; |
bd238fb43 9p: Reorganizatio... |
1441 |
struct p9_client *clnt; |
51a87c552 9p: rework client... |
1442 |
struct p9_req_t *req; |
bd238fb43 9p: Reorganizatio... |
1443 |
|
5d3851530 9p: Reduce object... |
1444 1445 |
p9_debug(P9_DEBUG_9P, ">>> TREMOVE fid %d ", fid->fid); |
bd238fb43 9p: Reorganizatio... |
1446 |
err = 0; |
bd238fb43 9p: Reorganizatio... |
1447 |
clnt = fid->clnt; |
51a87c552 9p: rework client... |
1448 1449 1450 1451 |
req = p9_client_rpc(clnt, P9_TREMOVE, "d", fid->fid); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; |
bd238fb43 9p: Reorganizatio... |
1452 |
} |
5d3851530 9p: Reduce object... |
1453 1454 |
p9_debug(P9_DEBUG_9P, "<<< RREMOVE fid %d ", fid->fid); |
bd238fb43 9p: Reorganizatio... |
1455 |
|
51a87c552 9p: rework client... |
1456 |
p9_free_req(clnt, req); |
51a87c552 9p: rework client... |
1457 |
error: |
0b1208b1a fs/9p: destroy fi... |
1458 |
p9_fid_destroy(fid); |
bd238fb43 9p: Reorganizatio... |
1459 1460 1461 |
return err; } EXPORT_SYMBOL(p9_client_remove); |
48e370ff9 fs/9p: add 9P2000... |
1462 1463 1464 1465 1466 |
int p9_client_unlinkat(struct p9_fid *dfid, const char *name, int flags) { int err = 0; struct p9_req_t *req; struct p9_client *clnt; |
5d3851530 9p: Reduce object... |
1467 1468 |
p9_debug(P9_DEBUG_9P, ">>> TUNLINKAT fid %d %s %d ", |
48e370ff9 fs/9p: add 9P2000... |
1469 1470 1471 1472 1473 1474 1475 1476 |
dfid->fid, name, flags); clnt = dfid->clnt; req = p9_client_rpc(clnt, P9_TUNLINKAT, "dsd", dfid->fid, name, flags); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
5d3851530 9p: Reduce object... |
1477 1478 |
p9_debug(P9_DEBUG_9P, "<<< RUNLINKAT fid %d %s ", dfid->fid, name); |
48e370ff9 fs/9p: add 9P2000... |
1479 1480 1481 1482 1483 1484 |
p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_unlinkat); |
0fc9655ec 9p: consolidate r... |
1485 1486 1487 |
int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, u32 count) |
bd238fb43 9p: Reorganizatio... |
1488 |
{ |
51a87c552 9p: rework client... |
1489 |
char *dataptr; |
abfa034e4 fs/9p: Update zer... |
1490 1491 1492 1493 |
int kernel_buf = 0; struct p9_req_t *req; struct p9_client *clnt; int err, rsize, non_zc = 0; |
bd238fb43 9p: Reorganizatio... |
1494 |
|
5d3851530 9p: Reduce object... |
1495 1496 |
p9_debug(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %d ", |
abfa034e4 fs/9p: Update zer... |
1497 |
fid->fid, (long long unsigned) offset, count); |
bd238fb43 9p: Reorganizatio... |
1498 |
err = 0; |
bd238fb43 9p: Reorganizatio... |
1499 |
clnt = fid->clnt; |
bd238fb43 9p: Reorganizatio... |
1500 1501 1502 1503 |
rsize = fid->iounit; if (!rsize || rsize > clnt->msize-P9_IOHDRSZ) rsize = clnt->msize - P9_IOHDRSZ; |
51a87c552 9p: rework client... |
1504 1505 |
if (count < rsize) rsize = count; |
bd238fb43 9p: Reorganizatio... |
1506 |
|
aca007633 9p: typo fixes an... |
1507 |
/* Don't bother zerocopy for small IO (< 1024) */ |
abfa034e4 fs/9p: Update zer... |
1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 |
if (clnt->trans_mod->zc_request && rsize > 1024) { char *indata; if (data) { kernel_buf = 1; indata = data; } else indata = (char *)udata; /* * response header len is 11 * PDU Header(7) + IO Size (4) */ req = p9_client_zc_rpc(clnt, P9_TREAD, indata, NULL, rsize, 0, 11, kernel_buf, "dqd", fid->fid, offset, rsize); |
bb2f8a551 [net/9p] Read sid... |
1522 |
} else { |
abfa034e4 fs/9p: Update zer... |
1523 |
non_zc = 1; |
bb2f8a551 [net/9p] Read sid... |
1524 |
req = p9_client_rpc(clnt, P9_TREAD, "dqd", fid->fid, offset, |
abfa034e4 fs/9p: Update zer... |
1525 |
rsize); |
bb2f8a551 [net/9p] Read sid... |
1526 |
} |
51a87c552 9p: rework client... |
1527 1528 1529 1530 |
if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
bd238fb43 9p: Reorganizatio... |
1531 |
|
342fee1d5 9P2010.L handshak... |
1532 |
err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr); |
e7f4b8f1a 9p: Improve debug... |
1533 |
if (err) { |
348b59012 net/9p: Convert n... |
1534 |
trace_9p_protocol_dump(clnt, req->rc); |
51a87c552 9p: rework client... |
1535 |
goto free_and_error; |
e7f4b8f1a 9p: Improve debug... |
1536 |
} |
bd238fb43 9p: Reorganizatio... |
1537 |
|
5d3851530 9p: Reduce object... |
1538 1539 |
p9_debug(P9_DEBUG_9P, "<<< RREAD count %d ", count); |
bd238fb43 9p: Reorganizatio... |
1540 |
|
abfa034e4 fs/9p: Update zer... |
1541 |
if (non_zc) { |
bb2f8a551 [net/9p] Read sid... |
1542 1543 1544 1545 1546 1547 1548 1549 |
if (data) { memmove(data, dataptr, count); } else { err = copy_to_user(udata, dataptr, count); if (err) { err = -EFAULT; goto free_and_error; } |
bd238fb43 9p: Reorganizatio... |
1550 |
} |
51a87c552 9p: rework client... |
1551 |
} |
51a87c552 9p: rework client... |
1552 1553 |
p9_free_req(clnt, req); return count; |
bd238fb43 9p: Reorganizatio... |
1554 |
|
51a87c552 9p: rework client... |
1555 1556 |
free_and_error: p9_free_req(clnt, req); |
bd238fb43 9p: Reorganizatio... |
1557 |
error: |
bd238fb43 9p: Reorganizatio... |
1558 1559 |
return err; } |
0fc9655ec 9p: consolidate r... |
1560 |
EXPORT_SYMBOL(p9_client_read); |
bd238fb43 9p: Reorganizatio... |
1561 1562 |
int |
0fc9655ec 9p: consolidate r... |
1563 1564 |
p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, u64 offset, u32 count) |
bd238fb43 9p: Reorganizatio... |
1565 |
{ |
095d3da61 9p: Kill set but ... |
1566 |
int err, rsize; |
abfa034e4 fs/9p: Update zer... |
1567 |
int kernel_buf = 0; |
bd238fb43 9p: Reorganizatio... |
1568 |
struct p9_client *clnt; |
51a87c552 9p: rework client... |
1569 |
struct p9_req_t *req; |
bd238fb43 9p: Reorganizatio... |
1570 |
|
5d3851530 9p: Reduce object... |
1571 1572 |
p9_debug(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %d ", |
51a87c552 9p: rework client... |
1573 |
fid->fid, (long long unsigned) offset, count); |
bd238fb43 9p: Reorganizatio... |
1574 |
err = 0; |
bd238fb43 9p: Reorganizatio... |
1575 |
clnt = fid->clnt; |
bd238fb43 9p: Reorganizatio... |
1576 1577 1578 1579 |
rsize = fid->iounit; if (!rsize || rsize > clnt->msize-P9_IOHDRSZ) rsize = clnt->msize - P9_IOHDRSZ; |
51a87c552 9p: rework client... |
1580 1581 |
if (count < rsize) rsize = count; |
1fc52481c [net/9p] Write si... |
1582 |
|
abfa034e4 fs/9p: Update zer... |
1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 |
/* Don't bother zerocopy for small IO (< 1024) */ if (clnt->trans_mod->zc_request && rsize > 1024) { char *odata; if (data) { kernel_buf = 1; odata = data; } else odata = (char *)udata; req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, odata, 0, rsize, P9_ZC_HDR_SZ, kernel_buf, "dqd", fid->fid, offset, rsize); |
1fc52481c [net/9p] Write si... |
1594 |
} else { |
1fc52481c [net/9p] Write si... |
1595 1596 |
if (data) req = p9_client_rpc(clnt, P9_TWRITE, "dqD", fid->fid, |
abfa034e4 fs/9p: Update zer... |
1597 |
offset, rsize, data); |
1fc52481c [net/9p] Write si... |
1598 1599 |
else req = p9_client_rpc(clnt, P9_TWRITE, "dqU", fid->fid, |
abfa034e4 fs/9p: Update zer... |
1600 |
offset, rsize, udata); |
1fc52481c [net/9p] Write si... |
1601 |
} |
51a87c552 9p: rework client... |
1602 1603 1604 1605 |
if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
0fc9655ec 9p: consolidate r... |
1606 |
|
342fee1d5 9P2010.L handshak... |
1607 |
err = p9pdu_readf(req->rc, clnt->proto_version, "d", &count); |
e7f4b8f1a 9p: Improve debug... |
1608 |
if (err) { |
348b59012 net/9p: Convert n... |
1609 |
trace_9p_protocol_dump(clnt, req->rc); |
51a87c552 9p: rework client... |
1610 |
goto free_and_error; |
e7f4b8f1a 9p: Improve debug... |
1611 |
} |
5d3851530 9p: Reduce object... |
1612 1613 |
p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d ", count); |
bd238fb43 9p: Reorganizatio... |
1614 |
|
51a87c552 9p: rework client... |
1615 1616 |
p9_free_req(clnt, req); return count; |
bd238fb43 9p: Reorganizatio... |
1617 |
|
51a87c552 9p: rework client... |
1618 1619 |
free_and_error: p9_free_req(clnt, req); |
bd238fb43 9p: Reorganizatio... |
1620 |
error: |
bd238fb43 9p: Reorganizatio... |
1621 1622 |
return err; } |
0fc9655ec 9p: consolidate r... |
1623 |
EXPORT_SYMBOL(p9_client_write); |
bd238fb43 9p: Reorganizatio... |
1624 |
|
51a87c552 9p: rework client... |
1625 |
struct p9_wstat *p9_client_stat(struct p9_fid *fid) |
5503ac565 9p: remove unnece... |
1626 |
{ |
51a87c552 9p: rework client... |
1627 1628 1629 1630 1631 |
int err; struct p9_client *clnt; struct p9_wstat *ret = kmalloc(sizeof(struct p9_wstat), GFP_KERNEL); struct p9_req_t *req; u16 ignored; |
5503ac565 9p: remove unnece... |
1632 |
|
5d3851530 9p: Reduce object... |
1633 1634 |
p9_debug(P9_DEBUG_9P, ">>> TSTAT fid %d ", fid->fid); |
5503ac565 9p: remove unnece... |
1635 |
|
5503ac565 9p: remove unnece... |
1636 1637 |
if (!ret) return ERR_PTR(-ENOMEM); |
bd238fb43 9p: Reorganizatio... |
1638 |
err = 0; |
bd238fb43 9p: Reorganizatio... |
1639 |
clnt = fid->clnt; |
51a87c552 9p: rework client... |
1640 1641 1642 |
req = p9_client_rpc(clnt, P9_TSTAT, "d", fid->fid); if (IS_ERR(req)) { err = PTR_ERR(req); |
bd238fb43 9p: Reorganizatio... |
1643 1644 |
goto error; } |
342fee1d5 9P2010.L handshak... |
1645 |
err = p9pdu_readf(req->rc, clnt->proto_version, "wS", &ignored, ret); |
e7f4b8f1a 9p: Improve debug... |
1646 |
if (err) { |
348b59012 net/9p: Convert n... |
1647 |
trace_9p_protocol_dump(clnt, req->rc); |
eedfe1c42 9p: Possible regr... |
1648 1649 |
p9_free_req(clnt, req); goto error; |
e7f4b8f1a 9p: Improve debug... |
1650 |
} |
bd238fb43 9p: Reorganizatio... |
1651 |
|
5d3851530 9p: Reduce object... |
1652 |
p9_debug(P9_DEBUG_9P, |
e7f4b8f1a 9p: Improve debug... |
1653 1654 1655 1656 1657 1658 1659 1660 |
"<<< RSTAT sz=%x type=%x dev=%x qid=%x.%llx.%x " "<<< mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx " "<<< name=%s uid=%s gid=%s muid=%s extension=(%s) " "<<< uid=%d gid=%d n_muid=%d ", |
51a87c552 9p: rework client... |
1661 |
ret->size, ret->type, ret->dev, ret->qid.type, |
b0d5fdef5 net/9p: fix print... |
1662 1663 1664 |
(unsigned long long)ret->qid.path, ret->qid.version, ret->mode, ret->atime, ret->mtime, (unsigned long long)ret->length, ret->name, ret->uid, ret->gid, ret->muid, ret->extension, |
e7f4b8f1a 9p: Improve debug... |
1665 |
ret->n_uid, ret->n_gid, ret->n_muid); |
bd238fb43 9p: Reorganizatio... |
1666 |
|
742b11a7e net/9p: return er... |
1667 1668 |
p9_free_req(clnt, req); return ret; |
bd238fb43 9p: Reorganizatio... |
1669 |
error: |
742b11a7e net/9p: return er... |
1670 1671 |
kfree(ret); return ERR_PTR(err); |
bd238fb43 9p: Reorganizatio... |
1672 1673 |
} EXPORT_SYMBOL(p9_client_stat); |
f08531220 9p: getattr clien... |
1674 1675 1676 1677 1678 1679 1680 1681 |
struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid, u64 request_mask) { int err; struct p9_client *clnt; struct p9_stat_dotl *ret = kmalloc(sizeof(struct p9_stat_dotl), GFP_KERNEL); struct p9_req_t *req; |
5d3851530 9p: Reduce object... |
1682 1683 |
p9_debug(P9_DEBUG_9P, ">>> TGETATTR fid %d, request_mask %lld ", |
f08531220 9p: getattr clien... |
1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 |
fid->fid, request_mask); if (!ret) return ERR_PTR(-ENOMEM); err = 0; clnt = fid->clnt; req = p9_client_rpc(clnt, P9_TGETATTR, "dq", fid->fid, request_mask); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } err = p9pdu_readf(req->rc, clnt->proto_version, "A", ret); if (err) { |
348b59012 net/9p: Convert n... |
1700 |
trace_9p_protocol_dump(clnt, req->rc); |
f08531220 9p: getattr clien... |
1701 1702 1703 |
p9_free_req(clnt, req); goto error; } |
5d3851530 9p: Reduce object... |
1704 |
p9_debug(P9_DEBUG_9P, |
f08531220 9p: getattr clien... |
1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 |
"<<< RGETATTR st_result_mask=%lld " "<<< qid=%x.%llx.%x " "<<< st_mode=%8.8x st_nlink=%llu " "<<< st_uid=%d st_gid=%d " "<<< st_rdev=%llx st_size=%llx st_blksize=%llu st_blocks=%llu " "<<< st_atime_sec=%lld st_atime_nsec=%lld " "<<< st_mtime_sec=%lld st_mtime_nsec=%lld " "<<< st_ctime_sec=%lld st_ctime_nsec=%lld " "<<< st_btime_sec=%lld st_btime_nsec=%lld " "<<< st_gen=%lld st_data_version=%lld", ret->st_result_mask, ret->qid.type, ret->qid.path, ret->qid.version, ret->st_mode, ret->st_nlink, ret->st_uid, ret->st_gid, ret->st_rdev, ret->st_size, ret->st_blksize, ret->st_blocks, ret->st_atime_sec, ret->st_atime_nsec, ret->st_mtime_sec, ret->st_mtime_nsec, ret->st_ctime_sec, ret->st_ctime_nsec, ret->st_btime_sec, ret->st_btime_nsec, ret->st_gen, ret->st_data_version); p9_free_req(clnt, req); return ret; error: kfree(ret); return ERR_PTR(err); } EXPORT_SYMBOL(p9_client_getattr_dotl); |
342fee1d5 9P2010.L handshak... |
1740 |
static int p9_client_statsize(struct p9_wstat *wst, int proto_version) |
453ed90d1 net/9p: set corre... |
1741 1742 |
{ int ret; |
9d6939dac net/9p: fix stats... |
1743 |
/* NOTE: size shouldn't include its own length */ |
453ed90d1 net/9p: set corre... |
1744 1745 1746 |
/* size[2] type[2] dev[4] qid[13] */ /* mode[4] atime[4] mtime[4] length[8]*/ /* name[s] uid[s] gid[s] muid[s] */ |
9d6939dac net/9p: fix stats... |
1747 |
ret = 2+4+13+4+4+4+8+2+2+2+2; |
453ed90d1 net/9p: set corre... |
1748 1749 1750 1751 1752 1753 1754 1755 1756 |
if (wst->name) ret += strlen(wst->name); if (wst->uid) ret += strlen(wst->uid); if (wst->gid) ret += strlen(wst->gid); if (wst->muid) ret += strlen(wst->muid); |
c56e4acf5 9p: VFS switches ... |
1757 1758 |
if ((proto_version == p9_proto_2000u) || (proto_version == p9_proto_2000L)) { |
453ed90d1 net/9p: set corre... |
1759 1760 1761 1762 1763 1764 1765 |
ret += 2+4+4+4; /* extension[s] n_uid[4] n_gid[4] n_muid[4] */ if (wst->extension) ret += strlen(wst->extension); } return ret; } |
bd238fb43 9p: Reorganizatio... |
1766 1767 1768 |
int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst) { int err; |
51a87c552 9p: rework client... |
1769 |
struct p9_req_t *req; |
bd238fb43 9p: Reorganizatio... |
1770 |
struct p9_client *clnt; |
453ed90d1 net/9p: set corre... |
1771 1772 |
err = 0; clnt = fid->clnt; |
342fee1d5 9P2010.L handshak... |
1773 |
wst->size = p9_client_statsize(wst, clnt->proto_version); |
5d3851530 9p: Reduce object... |
1774 1775 1776 |
p9_debug(P9_DEBUG_9P, ">>> TWSTAT fid %d ", fid->fid); p9_debug(P9_DEBUG_9P, |
e7f4b8f1a 9p: Improve debug... |
1777 1778 1779 1780 1781 1782 1783 1784 1785 |
" sz=%x type=%x dev=%x qid=%x.%llx.%x " " mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx " " name=%s uid=%s gid=%s muid=%s extension=(%s) " " uid=%d gid=%d n_muid=%d ", wst->size, wst->type, wst->dev, wst->qid.type, |
b0d5fdef5 net/9p: fix print... |
1786 1787 1788 |
(unsigned long long)wst->qid.path, wst->qid.version, wst->mode, wst->atime, wst->mtime, (unsigned long long)wst->length, wst->name, wst->uid, wst->gid, wst->muid, wst->extension, |
e7f4b8f1a 9p: Improve debug... |
1789 |
wst->n_uid, wst->n_gid, wst->n_muid); |
bd238fb43 9p: Reorganizatio... |
1790 |
|
9d6939dac net/9p: fix stats... |
1791 |
req = p9_client_rpc(clnt, P9_TWSTAT, "dwS", fid->fid, wst->size+2, wst); |
51a87c552 9p: rework client... |
1792 1793 1794 |
if (IS_ERR(req)) { err = PTR_ERR(req); goto error; |
bd238fb43 9p: Reorganizatio... |
1795 |
} |
5d3851530 9p: Reduce object... |
1796 1797 |
p9_debug(P9_DEBUG_9P, "<<< RWSTAT fid %d ", fid->fid); |
bd238fb43 9p: Reorganizatio... |
1798 |
|
51a87c552 9p: rework client... |
1799 1800 |
p9_free_req(clnt, req); error: |
bd238fb43 9p: Reorganizatio... |
1801 1802 1803 |
return err; } EXPORT_SYMBOL(p9_client_wstat); |
bda8e7752 9p: add 9P2000.L ... |
1804 |
|
87d7845aa 9p: Implement cli... |
1805 1806 1807 1808 1809 1810 1811 1812 |
int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *p9attr) { int err; struct p9_req_t *req; struct p9_client *clnt; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
1813 1814 1815 |
p9_debug(P9_DEBUG_9P, ">>> TSETATTR fid %d ", fid->fid); p9_debug(P9_DEBUG_9P, |
87d7845aa 9p: Implement cli... |
1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 |
" valid=%x mode=%x uid=%d gid=%d size=%lld " " atime_sec=%lld atime_nsec=%lld " " mtime_sec=%lld mtime_nsec=%lld ", p9attr->valid, p9attr->mode, p9attr->uid, p9attr->gid, p9attr->size, p9attr->atime_sec, p9attr->atime_nsec, p9attr->mtime_sec, p9attr->mtime_nsec); req = p9_client_rpc(clnt, P9_TSETATTR, "dI", fid->fid, p9attr); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
5d3851530 9p: Reduce object... |
1832 1833 |
p9_debug(P9_DEBUG_9P, "<<< RSETATTR fid %d ", fid->fid); |
87d7845aa 9p: Implement cli... |
1834 1835 1836 1837 1838 |
p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_setattr); |
bda8e7752 9p: add 9P2000.L ... |
1839 1840 1841 1842 1843 1844 1845 1846 |
int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb) { int err; struct p9_req_t *req; struct p9_client *clnt; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
1847 1848 |
p9_debug(P9_DEBUG_9P, ">>> TSTATFS fid %d ", fid->fid); |
bda8e7752 9p: add 9P2000.L ... |
1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 |
req = p9_client_rpc(clnt, P9_TSTATFS, "d", fid->fid); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } err = p9pdu_readf(req->rc, clnt->proto_version, "ddqqqqqqd", &sb->type, &sb->bsize, &sb->blocks, &sb->bfree, &sb->bavail, &sb->files, &sb->ffree, &sb->fsid, &sb->namelen); if (err) { |
348b59012 net/9p: Convert n... |
1860 |
trace_9p_protocol_dump(clnt, req->rc); |
bda8e7752 9p: add 9P2000.L ... |
1861 1862 1863 |
p9_free_req(clnt, req); goto error; } |
5d3851530 9p: Reduce object... |
1864 |
p9_debug(P9_DEBUG_9P, "<<< RSTATFS fid %d type 0x%lx bsize %ld " |
bda8e7752 9p: add 9P2000.L ... |
1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 |
"blocks %llu bfree %llu bavail %llu files %llu ffree %llu " "fsid %llu namelen %ld ", fid->fid, (long unsigned int)sb->type, (long int)sb->bsize, sb->blocks, sb->bfree, sb->bavail, sb->files, sb->ffree, sb->fsid, (long int)sb->namelen); p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_statfs); |
4681dbdac 9p: add 9P2000.L ... |
1877 |
|
9e8fb38e7 fs/9p: add 9P2000... |
1878 1879 |
int p9_client_rename(struct p9_fid *fid, struct p9_fid *newdirfid, const char *name) |
4681dbdac 9p: add 9P2000.L ... |
1880 1881 1882 1883 1884 1885 1886 |
{ int err; struct p9_req_t *req; struct p9_client *clnt; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
1887 1888 |
p9_debug(P9_DEBUG_9P, ">>> TRENAME fid %d newdirfid %d name %s ", |
4681dbdac 9p: add 9P2000.L ... |
1889 1890 1891 1892 1893 1894 1895 1896 |
fid->fid, newdirfid->fid, name); req = p9_client_rpc(clnt, P9_TRENAME, "dds", fid->fid, newdirfid->fid, name); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
5d3851530 9p: Reduce object... |
1897 1898 |
p9_debug(P9_DEBUG_9P, "<<< RRENAME fid %d ", fid->fid); |
4681dbdac 9p: add 9P2000.L ... |
1899 1900 1901 1902 1903 1904 |
p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_rename); |
9e8fb38e7 fs/9p: add 9P2000... |
1905 1906 1907 1908 1909 1910 1911 1912 1913 |
int p9_client_renameat(struct p9_fid *olddirfid, const char *old_name, struct p9_fid *newdirfid, const char *new_name) { int err; struct p9_req_t *req; struct p9_client *clnt; err = 0; clnt = olddirfid->clnt; |
5d3851530 9p: Reduce object... |
1914 |
p9_debug(P9_DEBUG_9P, ">>> TRENAMEAT olddirfid %d old name %s" |
9e8fb38e7 fs/9p: add 9P2000... |
1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 |
" newdirfid %d new name %s ", olddirfid->fid, old_name, newdirfid->fid, new_name); req = p9_client_rpc(clnt, P9_TRENAMEAT, "dsds", olddirfid->fid, old_name, newdirfid->fid, new_name); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
5d3851530 9p: Reduce object... |
1925 1926 |
p9_debug(P9_DEBUG_9P, "<<< RRENAMEAT newdirfid %d new name %s ", |
9e8fb38e7 fs/9p: add 9P2000... |
1927 1928 1929 1930 1931 1932 1933 |
newdirfid->fid, new_name); p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_renameat); |
0ef63f345 net/9p: Implement... |
1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 |
/* * An xattrwalk without @attr_name gives the fid for the lisxattr namespace */ struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid, const char *attr_name, u64 *attr_size) { int err; struct p9_req_t *req; struct p9_client *clnt; struct p9_fid *attr_fid; err = 0; clnt = file_fid->clnt; attr_fid = p9_fid_create(clnt); if (IS_ERR(attr_fid)) { err = PTR_ERR(attr_fid); attr_fid = NULL; goto error; } |
5d3851530 9p: Reduce object... |
1953 |
p9_debug(P9_DEBUG_9P, |
0ef63f345 net/9p: Implement... |
1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 |
">>> TXATTRWALK file_fid %d, attr_fid %d name %s ", file_fid->fid, attr_fid->fid, attr_name); req = p9_client_rpc(clnt, P9_TXATTRWALK, "dds", file_fid->fid, attr_fid->fid, attr_name); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } err = p9pdu_readf(req->rc, clnt->proto_version, "q", attr_size); if (err) { |
348b59012 net/9p: Convert n... |
1966 |
trace_9p_protocol_dump(clnt, req->rc); |
0ef63f345 net/9p: Implement... |
1967 1968 1969 1970 |
p9_free_req(clnt, req); goto clunk_fid; } p9_free_req(clnt, req); |
5d3851530 9p: Reduce object... |
1971 1972 |
p9_debug(P9_DEBUG_9P, "<<< RXATTRWALK fid %d size %llu ", |
0ef63f345 net/9p: Implement... |
1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 |
attr_fid->fid, *attr_size); return attr_fid; clunk_fid: p9_client_clunk(attr_fid); attr_fid = NULL; error: if (attr_fid && (attr_fid != file_fid)) p9_fid_destroy(attr_fid); return ERR_PTR(err); } EXPORT_SYMBOL_GPL(p9_client_xattrwalk); |
eda25e461 net/9p: Implement... |
1985 1986 1987 1988 1989 1990 |
int p9_client_xattrcreate(struct p9_fid *fid, const char *name, u64 attr_size, int flags) { int err; struct p9_req_t *req; struct p9_client *clnt; |
5d3851530 9p: Reduce object... |
1991 |
p9_debug(P9_DEBUG_9P, |
eda25e461 net/9p: Implement... |
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 |
">>> TXATTRCREATE fid %d name %s size %lld flag %d ", fid->fid, name, (long long)attr_size, flags); err = 0; clnt = fid->clnt; req = p9_client_rpc(clnt, P9_TXATTRCREATE, "dsqd", fid->fid, name, attr_size, flags); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } |
5d3851530 9p: Reduce object... |
2003 2004 |
p9_debug(P9_DEBUG_9P, "<<< RXATTRCREATE fid %d ", fid->fid); |
eda25e461 net/9p: Implement... |
2005 2006 2007 2008 2009 |
p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL_GPL(p9_client_xattrcreate); |
7751bdb3a 9p: readdir imple... |
2010 2011 |
int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset) { |
abfa034e4 fs/9p: Update zer... |
2012 |
int err, rsize, non_zc = 0; |
7751bdb3a 9p: readdir imple... |
2013 2014 2015 |
struct p9_client *clnt; struct p9_req_t *req; char *dataptr; |
5d3851530 9p: Reduce object... |
2016 2017 |
p9_debug(P9_DEBUG_9P, ">>> TREADDIR fid %d offset %llu count %d ", |
7751bdb3a 9p: readdir imple... |
2018 2019 2020 2021 |
fid->fid, (long long unsigned) offset, count); err = 0; clnt = fid->clnt; |
7751bdb3a 9p: readdir imple... |
2022 2023 2024 2025 2026 2027 2028 |
rsize = fid->iounit; if (!rsize || rsize > clnt->msize-P9_READDIRHDRSZ) rsize = clnt->msize - P9_READDIRHDRSZ; if (count < rsize) rsize = count; |
abfa034e4 fs/9p: Update zer... |
2029 2030 2031 2032 2033 2034 2035 2036 |
/* Don't bother zerocopy for small IO (< 1024) */ if (clnt->trans_mod->zc_request && rsize > 1024) { /* * response header len is 11 * PDU Header(7) + IO Size (4) */ req = p9_client_zc_rpc(clnt, P9_TREADDIR, data, NULL, rsize, 0, 11, 1, "dqd", fid->fid, offset, rsize); |
2c66523fd [net/9p] readdir ... |
2037 |
} else { |
abfa034e4 fs/9p: Update zer... |
2038 |
non_zc = 1; |
2c66523fd [net/9p] readdir ... |
2039 |
req = p9_client_rpc(clnt, P9_TREADDIR, "dqd", fid->fid, |
abfa034e4 fs/9p: Update zer... |
2040 |
offset, rsize); |
2c66523fd [net/9p] readdir ... |
2041 |
} |
7751bdb3a 9p: readdir imple... |
2042 2043 2044 2045 2046 2047 2048 |
if (IS_ERR(req)) { err = PTR_ERR(req); goto error; } err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr); if (err) { |
348b59012 net/9p: Convert n... |
2049 |
trace_9p_protocol_dump(clnt, req->rc); |
7751bdb3a 9p: readdir imple... |
2050 2051 |
goto free_and_error; } |
5d3851530 9p: Reduce object... |
2052 2053 |
p9_debug(P9_DEBUG_9P, "<<< RREADDIR count %d ", count); |
7751bdb3a 9p: readdir imple... |
2054 |
|
abfa034e4 fs/9p: Update zer... |
2055 |
if (non_zc) |
7751bdb3a 9p: readdir imple... |
2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 |
memmove(data, dataptr, count); p9_free_req(clnt, req); return count; free_and_error: p9_free_req(clnt, req); error: return err; } EXPORT_SYMBOL(p9_client_readdir); |
4b43516ab 9p: Implement TMKNOD |
2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 |
int p9_client_mknod_dotl(struct p9_fid *fid, char *name, int mode, dev_t rdev, gid_t gid, struct p9_qid *qid) { int err; struct p9_client *clnt; struct p9_req_t *req; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
2077 |
p9_debug(P9_DEBUG_9P, ">>> TMKNOD fid %d name %s mode %d major %d " |
4b43516ab 9p: Implement TMKNOD |
2078 2079 2080 2081 2082 2083 2084 2085 2086 |
"minor %d ", fid->fid, name, mode, MAJOR(rdev), MINOR(rdev)); req = p9_client_rpc(clnt, P9_TMKNOD, "dsdddd", fid->fid, name, mode, MAJOR(rdev), MINOR(rdev), gid); if (IS_ERR(req)) return PTR_ERR(req); err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid); if (err) { |
348b59012 net/9p: Convert n... |
2087 |
trace_9p_protocol_dump(clnt, req->rc); |
4b43516ab 9p: Implement TMKNOD |
2088 2089 |
goto error; } |
5d3851530 9p: Reduce object... |
2090 2091 |
p9_debug(P9_DEBUG_9P, "<<< RMKNOD qid %x.%llx.%x ", qid->type, |
4b43516ab 9p: Implement TMKNOD |
2092 2093 2094 2095 2096 2097 2098 2099 |
(unsigned long long)qid->path, qid->version); error: p9_free_req(clnt, req); return err; } EXPORT_SYMBOL(p9_client_mknod_dotl); |
01a622bd7 9p: Implement TMKDIR |
2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 |
int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode, gid_t gid, struct p9_qid *qid) { int err; struct p9_client *clnt; struct p9_req_t *req; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
2110 2111 |
p9_debug(P9_DEBUG_9P, ">>> TMKDIR fid %d name %s mode %d gid %d ", |
01a622bd7 9p: Implement TMKDIR |
2112 2113 2114 2115 2116 2117 2118 2119 |
fid->fid, name, mode, gid); req = p9_client_rpc(clnt, P9_TMKDIR, "dsdd", fid->fid, name, mode, gid); if (IS_ERR(req)) return PTR_ERR(req); err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid); if (err) { |
348b59012 net/9p: Convert n... |
2120 |
trace_9p_protocol_dump(clnt, req->rc); |
01a622bd7 9p: Implement TMKDIR |
2121 2122 |
goto error; } |
5d3851530 9p: Reduce object... |
2123 2124 |
p9_debug(P9_DEBUG_9P, "<<< RMKDIR qid %x.%llx.%x ", qid->type, |
01a622bd7 9p: Implement TMKDIR |
2125 2126 2127 2128 2129 2130 2131 2132 |
(unsigned long long)qid->path, qid->version); error: p9_free_req(clnt, req); return err; } EXPORT_SYMBOL(p9_client_mkdir_dotl); |
a099027c7 9p: Implement TLOCK |
2133 2134 2135 2136 2137 2138 2139 2140 2141 |
int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status) { int err; struct p9_client *clnt; struct p9_req_t *req; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
2142 |
p9_debug(P9_DEBUG_9P, ">>> TLOCK fid %d type %i flags %d " |
a099027c7 9p: Implement TLOCK |
2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 |
"start %lld length %lld proc_id %d client_id %s ", fid->fid, flock->type, flock->flags, flock->start, flock->length, flock->proc_id, flock->client_id); req = p9_client_rpc(clnt, P9_TLOCK, "dbdqqds", fid->fid, flock->type, flock->flags, flock->start, flock->length, flock->proc_id, flock->client_id); if (IS_ERR(req)) return PTR_ERR(req); err = p9pdu_readf(req->rc, clnt->proto_version, "b", status); if (err) { |
348b59012 net/9p: Convert n... |
2157 |
trace_9p_protocol_dump(clnt, req->rc); |
a099027c7 9p: Implement TLOCK |
2158 2159 |
goto error; } |
5d3851530 9p: Reduce object... |
2160 2161 |
p9_debug(P9_DEBUG_9P, "<<< RLOCK status %i ", *status); |
a099027c7 9p: Implement TLOCK |
2162 2163 2164 2165 2166 2167 |
error: p9_free_req(clnt, req); return err; } EXPORT_SYMBOL(p9_client_lock_dotl); |
1d769cd19 9p: Implement TGE... |
2168 2169 2170 2171 2172 2173 2174 2175 2176 |
int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *glock) { int err; struct p9_client *clnt; struct p9_req_t *req; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
2177 |
p9_debug(P9_DEBUG_9P, ">>> TGETLOCK fid %d, type %i start %lld " |
1d769cd19 9p: Implement TGE... |
2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 |
"length %lld proc_id %d client_id %s ", fid->fid, glock->type, glock->start, glock->length, glock->proc_id, glock->client_id); req = p9_client_rpc(clnt, P9_TGETLOCK, "dbqqds", fid->fid, glock->type, glock->start, glock->length, glock->proc_id, glock->client_id); if (IS_ERR(req)) return PTR_ERR(req); err = p9pdu_readf(req->rc, clnt->proto_version, "bqqds", &glock->type, &glock->start, &glock->length, &glock->proc_id, &glock->client_id); if (err) { |
348b59012 net/9p: Convert n... |
2192 |
trace_9p_protocol_dump(clnt, req->rc); |
1d769cd19 9p: Implement TGE... |
2193 2194 |
goto error; } |
5d3851530 9p: Reduce object... |
2195 |
p9_debug(P9_DEBUG_9P, "<<< RGETLOCK type %i start %lld length %lld " |
1d769cd19 9p: Implement TGE... |
2196 2197 2198 2199 2200 2201 2202 2203 |
"proc_id %d client_id %s ", glock->type, glock->start, glock->length, glock->proc_id, glock->client_id); error: p9_free_req(clnt, req); return err; } EXPORT_SYMBOL(p9_client_getlock_dotl); |
329176cc2 9p: Implement TRE... |
2204 2205 2206 2207 2208 2209 2210 2211 2212 |
int p9_client_readlink(struct p9_fid *fid, char **target) { int err; struct p9_client *clnt; struct p9_req_t *req; err = 0; clnt = fid->clnt; |
5d3851530 9p: Reduce object... |
2213 2214 |
p9_debug(P9_DEBUG_9P, ">>> TREADLINK fid %d ", fid->fid); |
329176cc2 9p: Implement TRE... |
2215 2216 2217 2218 2219 2220 2221 |
req = p9_client_rpc(clnt, P9_TREADLINK, "d", fid->fid); if (IS_ERR(req)) return PTR_ERR(req); err = p9pdu_readf(req->rc, clnt->proto_version, "s", target); if (err) { |
348b59012 net/9p: Convert n... |
2222 |
trace_9p_protocol_dump(clnt, req->rc); |
329176cc2 9p: Implement TRE... |
2223 2224 |
goto error; } |
5d3851530 9p: Reduce object... |
2225 2226 |
p9_debug(P9_DEBUG_9P, "<<< RREADLINK target %s ", *target); |
329176cc2 9p: Implement TRE... |
2227 2228 2229 2230 2231 |
error: p9_free_req(clnt, req); return err; } EXPORT_SYMBOL(p9_client_readlink); |