09 Dec, 2006
1 commit
-
Signed-off-by: Josef Sipek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Dec, 2006
3 commits
-
We currently insert socket dentries into the global dentry hashtable. This
is suboptimal because there is currently no way these entries can be used
for a lookup(). (/proc/xxx/fd/xxx uses a different mechanism). Inserting
them in dentry hashtable slows dcache lookups.To let __dpath() still work correctly (ie not adding a " (deleted)") after
dentry name, we do :- Right after d_alloc(), pretend they are hashed by clearing the
DCACHE_UNHASHED bit.- Call d_instantiate() instead of d_add() : dentry is not inserted in
hash table.__dpath() & friends work as intended during dentry lifetime.
- At dismantle time, once dput() must clear the dentry, setting again
DCACHE_UNHASHED bit inside the custom d_delete() function provided by
socket code, so that dput() can just kill_it.Signed-off-by: Eric Dumazet
Cc: Al Viro
Acked-by: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
doneThe script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
SLAB_KERNEL is an alias of GFP_KERNEL.
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Dec, 2006
1 commit
-
This patch contains the scheduled removal of the frame diverter.
Signed-off-by: Adrian Bunk
Signed-off-by: David S. Miller
02 Oct, 2006
1 commit
-
File handles can be requested to send sigio and sigurg to processes. By
tracking the destination processes using struct pid instead of pid_t we make
the interface safe from all potential pid wrap around problems.Signed-off-by: Eric W. Biederman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Oct, 2006
2 commits
-
This patch removes readv() and writev() methods and replaces them with
aio_read()/aio_write() methods.Signed-off-by: Badari Pulavarty
Signed-off-by: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch vectorizes aio_read() and aio_write() methods to prepare for
collapsing all aio & vectored operations into one interface - which is
aio_read()/aio_write().Signed-off-by: Badari Pulavarty
Signed-off-by: Christoph Hellwig
Cc: Michael Holzheu
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Sep, 2006
7 commits
-
Signed-off-by: Brian Haley
Signed-off-by: David S. Miller -
No need to set ei->socket.flags to zero twice.
Signed-off-by: David S. Miller
-
The sock_register() doesn't change the family, so the protocols can
define it read-only. No caller ever checks return value from
sock_unregister()Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Replace the gross custom locking done in socket code for net_family[]
with simple RCU usage. Some reordering necessary to avoid sleep issues
with sock_alloc.Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Make socket.c conform to current style:
* run through Lindent
* get rid of unneeded casts
* split assignment and comparsion where possibleSigned-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
This patch implements wrapper functions that provide a convenient way
to access the sockets API for in-kernel users like sunrpc, cifs &
ocfs2 etc and any future users.Signed-off-by: Sridhar Samudrala
Acked-by: James Morris
Signed-off-by: David S. Miller -
Add NetLabel support to the SELinux LSM and modify the
socket_post_create() LSM hook to return an error code. The most
significant part of this patch is the addition of NetLabel hooks into
the following SELinux LSM hooks:* selinux_file_permission()
* selinux_socket_sendmsg()
* selinux_socket_post_create()
* selinux_socket_sock_rcv_skb()
* selinux_socket_getpeersec_stream()
* selinux_socket_getpeersec_dgram()
* selinux_sock_graft()
* selinux_inet_conn_request()The basic reasoning behind this patch is that outgoing packets are
"NetLabel'd" by labeling their socket and the NetLabel security
attributes are checked via the additional hook in
selinux_socket_sock_rcv_skb(). NetLabel itself is only a labeling
mechanism, similar to filesystem extended attributes, it is up to the
SELinux enforcement mechanism to perform the actual access checks.In addition to the changes outlined above this patch also includes
some changes to the extended bitmap (ebitmap) and multi-level security
(mls) code to import and export SELinux TE/MLS attributes into and out
of NetLabel.Signed-off-by: Paul Moore
Signed-off-by: David S. Miller
01 Sep, 2006
1 commit
-
This patch limits the warning messages when socket allocation failures
happen. It happens under memory pressure.Signed-off-by: Akinobu Mita
Signed-off-by: David S. Miller
01 Jul, 2006
1 commit
-
Signed-off-by: Jörn Engel
Signed-off-by: Adrian Bunk
23 Jun, 2006
1 commit
-
Extend the get_sb() filesystem operation to take an extra argument that
permits the VFS to pass in the target vfsmount that defines the mountpoint.The filesystem is then required to manually set the superblock and root dentry
pointers. For most filesystems, this should be done with simple_set_mnt()
which will set the superblock pointer and then set the root dentry to the
superblock's s_root (as per the old default behaviour).The get_sb() op now returns an integer as there's now no need to return the
superblock pointer.This patch permits a superblock to be implicitly shared amongst several mount
points, such as can be done with NFS to avoid potential inode aliasing. In
such a case, simple_set_mnt() would not be called, and instead the mnt_root
and mnt_sb would be set directly.The patch also makes the following changes:
(*) the get_sb_*() convenience functions in the core kernel now take a vfsmount
pointer argument and return an integer, so most filesystems have to change
very little.(*) If one of the convenience function is not used, then get_sb() should
normally call simple_set_mnt() to instantiate the vfsmount. This will
always return 0, and so can be tail-called from get_sb().(*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the
dcache upon superblock destruction rather than shrink_dcache_anon().This is required because the superblock may now have multiple trees that
aren't actually bound to s_root, but that still need to be cleaned up. The
currently called functions assume that the whole tree is rooted at s_root,
and that anonymous dentries are not the roots of trees which results in
dentries being left unculled.However, with the way NFS superblock sharing are currently set to be
implemented, these assumptions are violated: the root of the filesystem is
simply a dummy dentry and inode (the real inode for '/' may well be
inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries
with child trees.[*] Anonymous until discovered from another tree.
(*) The documentation has been adjusted, including the additional bit of
changing ext2_* into foo_* in the documentation.[akpm@osdl.org: convert ipath_fs, do other stuff]
Signed-off-by: David Howells
Acked-by: Al Viro
Cc: Nathan Scott
Cc: Roland Dreier
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 May, 2006
1 commit
-
On Thursday 23 March 2006 09:08, John D. Ramsdell wrote:
> I noticed that a socketcall(bind) and socketcall(connect) event contain a
> record of type=SOCKADDR, but I cannot see one for a system call event
> associated with socketcall(accept). Recording the sockaddr of an accepted
> socket is important for cross platform information flow analysThanks for pointing this out. The following patch should address this.
Signed-off-by: Steve Grubb
Signed-off-by: Al Viro
20 Apr, 2006
1 commit
-
This applies to 2.6.17-rc2.
There is a missing initialization of err in sockfd_lookup_light() that
could return random error for an invalid file handle.Signed-off-by: Hua Zhong
Signed-off-by: David S. Miller
11 Apr, 2006
3 commits
-
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block:
[PATCH] vfs: add splice_write and splice_read to documentation
[PATCH] Remove sys_ prefix of new syscalls from __NR_sys_*
[PATCH] splice: warning fix
[PATCH] another round of fs/pipe.c cleanups
[PATCH] splice: comment styles
[PATCH] splice: add Ingo as addition copyright holder
[PATCH] splice: unlikely() optimizations
[PATCH] splice: speedups and optimizations
[PATCH] pipe.c/fifo.c code cleanups
[PATCH] get rid of the PIPE_*() macros
[PATCH] splice: speedup __generic_file_splice_read
[PATCH] splice: add direct fd fd splicing support
[PATCH] splice: add optional input and output offsets
[PATCH] introduce a "kernel-internal pipe object" abstraction
[PATCH] splice: be smarter about calling do_page_cache_readahead()
[PATCH] splice: optimize the splice buffer mapping
[PATCH] splice: cleanup __generic_file_splice_read()
[PATCH] splice: only call wake_up_interruptible() when we really have to
[PATCH] splice: potential !page dereference
[PATCH] splice: mark the io page as accessed -
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs. This is inefficient and
possibly buggy.We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.This patch replaces for_each_cpu with for_each_possible_cpu under /net
Signed-off-by: KAMEZAWA Hiroyuki
Acked-by: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
From: Andrew Morton
net/socket.c:148: warning: initialization from incompatible pointer type
extern declarations in .c files! Bad boy.
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe
02 Apr, 2006
1 commit
-
Andi Kleen was right, fput() on sock->file will end up calling
sock_release() if necessary. So here is the rest of his version
of the fix for these leaks.Signed-off-by: David S. Miller
01 Apr, 2006
1 commit
-
This regression was added by commit:
39d8c1b6fbaeb8d6adec4a8c08365cc9eaca6ae4
("Do not lose accepted socket when -ENFILE/-EMFILE.")This is based upon a patch from Andi Kleen.
Thanks to Adrian Bridgett for narrowing down a good test case, and to
Andi Kleen and Andrew Morton for eyeballing this code.Signed-off-by: David S. Miller
31 Mar, 2006
1 commit
-
This adds support for the sys_splice system call. Using a pipe as a
transport, it can connect to files or sockets (latter as output only).From the splice.c comments:
"splice": joining two ropes together by interweaving their strands.
This is the "extended pipe" functionality, where a pipe is used as
an arbitrary in-memory buffer. Think of a pipe as a small kernel
buffer that you can use to transfer data from one end to the other.The traditional unix read/write is extended with a "splice()" operation
that transfers data buffers to or from a pipe buffer.Named by Larry McVoy, original implementation from Linus, extended by
Jens to support splicing to files and fixing the initial implementation
bugs.Signed-off-by: Jens Axboe
Signed-off-by: Linus Torvalds
29 Mar, 2006
1 commit
-
This is a conversion to make the various file_operations structs in fs/
const. Basically a regexp job, with a few manual fixupsThe goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)Signed-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Mar, 2006
2 commits
-
Rewrap the overly long source code lines resulting from the previous
patch's addition of the slab cache flag SLAB_MEM_SPREAD. This patch
contains only formatting changes, and no function change.Signed-off-by: Paul Jackson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Mark file system inode and similar slab caches subject to SLAB_MEM_SPREAD
memory spreading.If a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that's
in a cpuset with the 'memory_spread_slab' option enabled goes to allocate
from such a slab cache, the allocations are spread evenly over all the
memory nodes (task->mems_allowed) allowed to that task, instead of favoring
allocation on the node local to the current cpu.The following inode and similar caches are marked SLAB_MEM_SPREAD:
file cache
==== =====
fs/adfs/super.c adfs_inode_cache
fs/affs/super.c affs_inode_cache
fs/befs/linuxvfs.c befs_inode_cache
fs/bfs/inode.c bfs_inode_cache
fs/block_dev.c bdev_cache
fs/cifs/cifsfs.c cifs_inode_cache
fs/coda/inode.c coda_inode_cache
fs/dquot.c dquot
fs/efs/super.c efs_inode_cache
fs/ext2/super.c ext2_inode_cache
fs/ext2/xattr.c (fs/mbcache.c) ext2_xattr
fs/ext3/super.c ext3_inode_cache
fs/ext3/xattr.c (fs/mbcache.c) ext3_xattr
fs/fat/cache.c fat_cache
fs/fat/inode.c fat_inode_cache
fs/freevxfs/vxfs_super.c vxfs_inode
fs/hpfs/super.c hpfs_inode_cache
fs/isofs/inode.c isofs_inode_cache
fs/jffs/inode-v23.c jffs_fm
fs/jffs2/super.c jffs2_i
fs/jfs/super.c jfs_ip
fs/minix/inode.c minix_inode_cache
fs/ncpfs/inode.c ncp_inode_cache
fs/nfs/direct.c nfs_direct_cache
fs/nfs/inode.c nfs_inode_cache
fs/ntfs/super.c ntfs_big_inode_cache_name
fs/ntfs/super.c ntfs_inode_cache
fs/ocfs2/dlm/dlmfs.c dlmfs_inode_cache
fs/ocfs2/super.c ocfs2_inode_cache
fs/proc/inode.c proc_inode_cache
fs/qnx4/inode.c qnx4_inode_cache
fs/reiserfs/super.c reiser_inode_cache
fs/romfs/inode.c romfs_inode_cache
fs/smbfs/inode.c smb_inode_cache
fs/sysv/inode.c sysv_inode_cache
fs/udf/super.c udf_inode_cache
fs/ufs/super.c ufs_inode_cache
net/socket.c sock_inode_cache
net/sunrpc/rpc_pipe.c rpc_inode_cacheThe choice of which slab caches to so mark was quite simple. I marked
those already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache,
inode_cache, and buffer_head, which were marked in a previous patch. Even
though SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same
potentially large file system i/o related slab caches as we need for memory
spreading.Given that the rule now becomes "wherever you would have used a
SLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use
the SLAB_MEM_SPREAD flag too", this should be easy enough to maintain.
Future file system writers will just copy one of the existing file system
slab cache setups and tend to get it right without thinking.Signed-off-by: Paul Jackson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Mar, 2006
1 commit
-
Since the register_ioctl32_conversion() patch in the kernel is now obsolete,
provide another method to allow 32 bit user space ioctls to reach the kernel.Signed-off-by: Shaun Pereira
Acked-by: Arnd Bergmann
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller
21 Mar, 2006
3 commits
-
Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.Signed-off-by: Arjan van de Ven
Signed-off-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
Here's an updated copy of the patch to use fget_light in net/socket.c.
Rerunning the tests show a drop of ~80Mbit/s on average, which looks
bad until you see the drop in cpu usage from ~89% to ~82%. That will
get fixed in another patch...Before: max 8113.70, min 8026.32, avg 8072.34
87380 16384 16384 10.01 8045.55 87.11 87.11 1.774 1.774
87380 16384 16384 10.01 8065.14 90.86 90.86 1.846 1.846
87380 16384 16384 10.00 8077.76 89.85 89.85 1.822 1.822
87380 16384 16384 10.00 8026.32 89.80 89.80 1.833 1.833
87380 16384 16384 10.01 8108.59 89.81 89.81 1.815 1.815
87380 16384 16384 10.01 8034.53 89.01 89.01 1.815 1.815
87380 16384 16384 10.00 8113.70 90.45 90.45 1.827 1.827
87380 16384 16384 10.00 8111.37 89.90 89.90 1.816 1.816
87380 16384 16384 10.01 8077.75 87.96 87.96 1.784 1.784
87380 16384 16384 10.00 8062.70 90.25 90.25 1.834 1.834After: max 8035.81, min 7963.69, avg 7998.14
87380 16384 16384 10.01 8000.93 82.11 82.11 1.682 1.682
87380 16384 16384 10.01 8016.17 83.67 83.67 1.710 1.710
87380 16384 16384 10.01 7963.69 83.47 83.47 1.717 1.717
87380 16384 16384 10.01 8014.35 81.71 81.71 1.671 1.671
87380 16384 16384 10.00 7967.68 83.41 83.41 1.715 1.715
87380 16384 16384 10.00 7995.22 81.00 81.00 1.660 1.660
87380 16384 16384 10.00 8002.61 83.90 83.90 1.718 1.718
87380 16384 16384 10.00 8035.81 81.71 81.71 1.666 1.666
87380 16384 16384 10.01 8005.36 82.56 82.56 1.690 1.690
87380 16384 16384 10.00 7979.61 82.50 82.50 1.694 1.694Signed-off-by: Benjamin LaHaise
Signed-off-by: David S. Miller -
Try to allocate the struct file and an unused file
descriptor before we try to pull a newly accepted
socket out of the protocol layer.Based upon a patch by Prassana Meda.
Signed-off-by: David S. Miller
07 Feb, 2006
1 commit
06 Feb, 2006
1 commit
-
percpu_data blindly allocates bootmem memory to store NR_CPUS instances of
cpudata, instead of allocating memory only for possible cpus.As a preparation for changing that, we need to convert various 0 -> NR_CPUS
loops to use for_each_cpu().(The above only applies to users of asm-generic/percpu.h. powerpc has gone it
alone and is presently only allocating memory for present CPUs, so it's
currently corrupting memory).Signed-off-by: Eric Dumazet
Cc: "David S. Miller"
Cc: James Bottomley
Acked-by: Ingo Molnar
Cc: Jens Axboe
Cc: Anton Blanchard
Acked-by: William Irwin
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
31 Jan, 2006
1 commit
-
This patch contains the following changes:
- add a CONFIG_WIRELESS_EXT select'ed by NET_RADIO for conditional
code
- remove the now no longer required #ifdef CONFIG_NET_RADIO from some
#include'sBased on a patch by Jean Tourrilhes .
Signed-off-by: Adrian Bunk
Signed-off-by: John W. Linville
12 Jan, 2006
1 commit
-
This removes more unneeded casts on the return value for kmalloc(),
sock_kmalloc(), and vmalloc().Signed-off-by: Kris Katterjohn
Acked-by: James Morris
Signed-off-by: David S. Miller
04 Jan, 2006
3 commits
-
Currently all network protocols need to call dev_ioctl as the default
fallback in their ioctl implementations. This patch adds a fallback
to dev_ioctl to sock_ioctl if the protocol returned -ENOIOCTLCMD.
This way all the procotol ioctl handlers can be simplified and we don't
need to export dev_ioctl.Signed-off-by: Christoph Hellwig
Signed-off-by: David S. Miller -
Mid-term I plan to restructure the file_operations so that we don't need
to have all these duplicate aio and vectored versions. This patch is
a small step in that direction but also a worthwile cleanup on it's own:(1) introduce a alloc_sock_iocb helper that encapsulates allocating a
proper sock_iocb
(2) add do_sock_read and do_sock_write helpers for common read/write
codeSigned-off-by: Christoph Hellwig
Signed-off-by: David S. Miller -
It needs to return zero now that it is an initcall.
Also, net/nonet.c no longer needs a dummy sock_init().
Signed-off-by: David S. Miller
