02 Aug, 2012
1 commit
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Pull second vfs pile from Al Viro:
"The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the
deadlock reproduced by xfstests 068), symlink and hardlink restriction
patches, plus assorted cleanups and fixes.Note that another fsfreeze deadlock (emergency thaw one) is *not*
dealt with - the series by Fernando conflicts a lot with Jan's, breaks
userland ABI (FIFREEZE semantics gets changed) and trades the deadlock
for massive vfsmount leak; this is going to be handled next cycle.
There probably will be another pull request, but that stuff won't be
in it."Fix up trivial conflicts due to unrelated changes next to each other in
drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c}* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits)
delousing target_core_file a bit
Documentation: Correct s_umount state for freeze_fs/unfreeze_fs
fs: Remove old freezing mechanism
ext2: Implement freezing
btrfs: Convert to new freezing mechanism
nilfs2: Convert to new freezing mechanism
ntfs: Convert to new freezing mechanism
fuse: Convert to new freezing mechanism
gfs2: Convert to new freezing mechanism
ocfs2: Convert to new freezing mechanism
xfs: Convert to new freezing code
ext4: Convert to new freezing mechanism
fs: Protect write paths by sb_start_write - sb_end_write
fs: Skip atime update on frozen filesystem
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
fs: Improve filesystem freezing handling
switch the protection of percpu_counter list to spinlock
nfsd: Push mnt_want_write() outside of i_mutex
btrfs: Push mnt_want_write() outside of i_mutex
fat: Push mnt_want_write() outside of i_mutex
...
30 Jul, 2012
2 commits
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Signed-off-by: Al Viro
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It's used both for client and server hosts; we can't do nlmclnt_release_host()
on failure exits, since the host might need nlmsvc_release_host(), with BUG_ON()
for calling the wrong one. Makes life simpler for callers, actually...Signed-off-by: Al Viro
28 Jul, 2012
12 commits
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Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Passed network namespace replaced hard-coded init_net
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
This is a cleanup patch - makes code looks simplier.
It replaces widely used rqstp->rq_xprt->xpt_net by introduced SVC_NET(rqstp).Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Just a small cleanup.
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
This patch introduces moves nrhosts in per-net data.
It also adds kernel warning to nlm_shutdown_hosts_net() about remaining hosts
in specified network namespace context.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
This patch moves next_gc to per-net data.
Note: passed network can be NULL (when Lockd kthread is exiting of Lockd
module is removing).Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Signed-off-by: J. Bruce Fields
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This is required for per-network NLM shutdown and cleanup.
This patch passes init_net for a while.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields
01 Jun, 2012
10 commits
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Pull the rest of the nfsd commits from Bruce Fields:
"... and then I cherry-picked the remainder of the patches from the
head of my previous branch"This is the rest of the original nfsd branch, rebased without the
delegation stuff that I thought really needed to be redone.I don't like rebasing things like this in general, but in this situation
this was the lesser of two evils.* 'for-3.5' of git://linux-nfs.org/~bfields/linux: (50 commits)
nfsd4: fix, consolidate client_has_state
nfsd4: don't remove rebooted client record until confirmation
nfsd4: remove some dprintk's and a comment
nfsd4: return "real" sequence id in confirmed case
nfsd4: fix exchange_id to return confirm flag
nfsd4: clarify that renewing expired client is a bug
nfsd4: simpler ordering of setclientid_confirm checks
nfsd4: setclientid: remove pointless assignment
nfsd4: fix error return in non-matching-creds case
nfsd4: fix setclientid_confirm same_cred check
nfsd4: merge 3 setclientid cases to 2
nfsd4: pull out common code from setclientid cases
nfsd4: merge last two setclientid cases
nfsd4: setclientid/confirm comment cleanup
nfsd4: setclientid remove unnecessary terms from a logical expression
nfsd4: move rq_flavor into svc_cred
nfsd4: stricter cred comparison for setclientid/exchange_id
nfsd4: move principal name into svc_cred
nfsd4: allow removing clients not holding state
nfsd4: rearrange exchange_id logic to simplify
... -
Pull nfsd update from Bruce Fields.
* 'for-3.5-take-2' of git://linux-nfs.org/~bfields/linux: (23 commits)
nfsd: trivial: use SEEK_SET instead of 0 in vfs_llseek
SUNRPC: split upcall function to extract reusable parts
nfsd: allocate id-to-name and name-to-id caches in per-net operations.
nfsd: make name-to-id cache allocated per network namespace context
nfsd: make id-to-name cache allocated per network namespace context
nfsd: pass network context to idmap init/exit functions
nfsd: allocate export and expkey caches in per-net operations.
nfsd: make expkey cache allocated per network namespace context
nfsd: make export cache allocated per network namespace context
nfsd: pass pointer to export cache down to stack wherever possible.
nfsd: pass network context to export caches init/shutdown routines
Lockd: pass network namespace to creation and destruction routines
NFSd: remove hard-coded dereferences to name-to-id and id-to-name caches
nfsd: pass pointer to expkey cache down to stack wherever possible.
nfsd: use hash table from cache detail in nfsd export seq ops
nfsd: pass svc_export_cache pointer as private data to "exports" seq file ops
nfsd: use exp_put() for svc_export_cache put
nfsd: use cache detail pointer from svc_export structure on cache put
nfsd: add link to owner cache detail to svc_export structure
nfsd: use passed cache_detail pointer expkey_parse()
... -
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
This is just a code move, which from my POV makes the code look better.
I.e. now on start we have 3 different stages:
1) Service creation.
2) Service per-net data allocation.
3) Service start.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
This function creates service if it doesn't exist, or increases usage
counter if it does, and returns a pointer to it. The usage counter will
be droppepd by svc_destroy() later in lockd_up().Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
This patch also replaces svc_rpcb_setup() with svc_bind().
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
The idea is to separate service destruction and per-net operations,
because these are two different things and the mix looks ugly.Notes:
1) For NFS server this patch looks ugly (sorry for that). But these
place will be rewritten soon during NFSd containerization.2) LockD per-net counter increase int lockd_up() was moved prior to
make_socks() to make lockd_down_net() call safe in case of error.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields -
This new routine is responsible for service registration in a specified
network context.The idea is to separate service creation from per-net operations.
Note also: since registering service with svc_bind() can fail, the
service will be destroyed and during destruction it will try to
unregister itself from rpcbind. In this case unregistration has to be
skipped.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields
14 Apr, 2012
1 commit
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comparing be32 values for < is not doing the right thing...
Signed-off-by: Al Viro
12 Apr, 2012
1 commit
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v2: dereference of most probably already released nlm_host removed in
nlmclnt_done() and reclaimer().These routines are called from locks reclaimer() kernel thread. This thread
works in "init_net" network context and currently relays on persence on lockd
thread and it's per-net resources. Thus lockd_up() and lockd_down() can't relay
on current network context. So let's pass corrent one into them.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: J. Bruce Fields
26 Mar, 2012
1 commit
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The nfs containerization work is a prerequisite for Jeff Layton's reboot
recovery rework.
21 Mar, 2012
1 commit
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Stephen Rothwell reports:
net/sunrpc/rpcb_clnt.c: In function 'rpcb_enc_mapping':
net/sunrpc/rpcb_clnt.c:820:19: warning: unused variable 'task' [-Wunused-variable]
net/sunrpc/rpcb_clnt.c: In function 'rpcb_dec_getport':
net/sunrpc/rpcb_clnt.c:837:19: warning: unused variable 'task' [-Wunused-variable]
net/sunrpc/rpcb_clnt.c: In function 'rpcb_dec_set':
net/sunrpc/rpcb_clnt.c:860:19: warning: unused variable 'task' [-Wunused-variable]
net/sunrpc/rpcb_clnt.c: In function 'rpcb_enc_getaddr':
net/sunrpc/rpcb_clnt.c:892:19: warning: unused variable 'task' [-Wunused-variable]
net/sunrpc/rpcb_clnt.c: In function 'rpcb_dec_getaddr':
net/sunrpc/rpcb_clnt.c:914:19: warning: unused variable 'task' [-Wunused-variable]
fs/lockd/svclock.c:49:20: warning: 'nlmdbg_cookie2a' declared 'static' but never defined [-Wunused-function]Reported-by: Stephen Rothwell
Signed-off-by: Trond Myklebust
18 Feb, 2012
1 commit
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If you try to set grace_period or timeout via a module parameter
to lockd, and do this on a big-endian machine wheresizeof(int) != sizeof(unsigned long)
it won't work. This number given will be effectively shifted right
by the difference in those two sizes.So cast kp->arg properly to get correct result.
Cc: stable@kernel.org
Signed-off-by: NeilBrown
Signed-off-by: J. Bruce Fields
15 Feb, 2012
6 commits
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Lockd now managed in network namespace context. And this patch introduces
network namespace related NLM hosts shutdown in case of releasing per-net Lockd
resources.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust -
NLM host is network namespace aware now.
So NSM have to take it into account.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust -
This object depends on RPC client, and thus on network namespace.
So let's make it's allocation and lookup in network namespace context.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust -
This patch introduces per-net Lockd initialization and destruction routines.
The logic is the same as in global Lockd up and down routines. Probably the
solution is not the best one. But at least it looks clear.
So per-net "up" routine are called only in case of lockd is running already. If
per-net resources are not allocated yet, then service is being registered with
local portmapper and lockd sockets created.
Per-net "down" routine is called on every lockd_down() call in case of global
users counter is not zero.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust -
Lockd is going to be shared between network namespaces - i.e. going to be able
to handle lock requests from different network namespaces. This means, that
network namespace related resources have to be allocated not once (like now),
but for every network namespace context, from which service is requested to
operate.
This patch implements Lockd per-net users accounting. New per-net counter is
used to determine, when per-net resources have to be freed.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust -
This patch parametrizes Lockd permanent sockets creation routine by network
namespace context.
It also replaces hard-coded init_net with current network namespace context in
Lockd sockets creation routines.
This approach looks safe, because Lockd is created during NFS mount (or NFS
server start) and thus socket is required exactly in current network namespace
context. But in the same time it means, that Lockd sockets inherits first Lockd
requester network namespace. This issue will be fixed in further patches of the
series.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust
01 Feb, 2012
2 commits
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Signed-off-by: Trond Myklebust
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Service transports are parametrized by network namespace. And thus lookup of
transport instance have to take network namespace into account.Signed-off-by: Stanislav Kinsbursky
Signed-off-by: Trond Myklebust
Acked-by: J. Bruce Fields
13 Jan, 2012
1 commit
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module_param(bool) used to counter-intuitively take an int. In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.It's time to remove the int/unsigned int option. For this version
it'll simply give a warning, but it'll break next kernel version.Acked-by: Mauro Carvalho Chehab
Signed-off-by: Rusty Russell
07 Jan, 2012
1 commit
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Signed-off-by: Al Viro