Oleg Nesterov 12eaaf309a set_task_comm: kill the pointless memset() + wmb() ...

set_task_comm() does memset() + wmb() before strlcpy().  This buys
nothing and to add to the confusion, the comment is wrong.

- We do not need memset() to be "safe from non-terminating string
  reads", the final char is always zero and we never change it.

- wmb() is paired with nothing, it cannot prevent from printing
  the mixture of the old/new data unless the reader takes the lock.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-04-30 17:04:07 -07:00

..

9p

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

adfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

affs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

afs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

autofs4

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

befs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-04-30 09:36:50 -07:00

bfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2013-04-14 10:52:54 -07:00

cachefiles

…

ceph

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

cifs

cifs: Allow passwords which begin with a delimitor

2013-04-10 15:54:14 -05:00

coda

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

configfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

cramfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

debugfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

devpts

fs: Limit sys_mount to only request filesystem modules (Part 2).

2013-03-07 01:08:55 -08:00

dlm

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ecryptfs

ecryptfs: close rmmod race

2013-04-09 14:08:16 -04:00

efs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

exofs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

exportfs

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ext2

ext2: Fix BUG_ON in evict() on inode deletion

2013-03-13 15:23:44 +01:00

ext3

mm: make snapshotting pages for stable writes a per-bio operation

2013-04-29 15:54:33 -07:00

ext4

ext4: fix big-endian bugs which could cause fs corruptions

2013-04-03 12:37:17 -04:00

f2fs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-04-30 09:36:50 -07:00

fat

fat (exportfs): rebuild directory-inode if fat_dget()

2013-04-29 18:28:41 -07:00

freevxfs

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

fscache

fs/fscache/stats.c: fix memory leak

2013-04-29 15:54:27 -07:00

fuse

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

gfs2

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-04-30 09:36:50 -07:00

hfs

hfs/hfsplus: convert printks to pr_<level>

2013-04-30 17:04:05 -07:00

hfsplus

hfsplus: remove duplicated message prefix in hfsplus_block_free()

2013-04-30 17:04:05 -07:00

hostfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-03-13 15:47:50 -07:00

hpfs

fs: Limit sys_mount to only request filesystem modules. (Part 3)

2013-03-11 07:09:48 -07:00

hppfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

hugetlbfs

hugetlbfs: stop setting VM_DONTDUMP in initializing vma(VM_HUGETLB)

2013-04-17 16:10:44 -07:00

isofs

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

jbd

fs/buffer.c: remove unnecessary init operation after allocating buffer_head.

2013-04-29 15:54:39 -07:00

jbd2

fs/buffer.c: remove unnecessary init operation after allocating buffer_head.

2013-04-29 15:54:39 -07:00

jffs2

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

jfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

lockd

Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux

2013-02-28 18:02:55 -08:00

logfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

minix

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

ncpfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

nfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-04-30 09:36:50 -07:00

nfs_common

nfs_common: Update the translation between nfsv3 acls linux posix acls

2013-02-13 06:15:14 -08:00

nfsd

nfsd: convert nfs4_alloc_stid() to use idr_alloc_cyclic()

2013-04-29 18:28:41 -07:00

nilfs2

nilfs2: remove unneeded test in nilfs_writepage()

2013-04-30 17:04:05 -07:00

nls

…

notify

inotify: invalid mask should return a error number but not set it

2013-04-30 17:04:00 -07:00

ntfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

ocfs2

ocfs2/dlm: remove redundant null pointer check

2013-04-29 15:54:27 -07:00

omfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

openpromfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

proc

fs, proc: truncate /proc/pid/comm writes to first TASK_COMM_LEN bytes

2013-04-30 17:04:07 -07:00

pstore

Merge tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

2013-02-21 09:38:18 -08:00

qnx4

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

qnx6

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

quota

quota: add missing use of dq_data_lock in __dquot_initialize

2013-03-11 22:05:56 +01:00

ramfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-02-26 20:16:07 -08:00

reiserfs

reiserfs: Fix warning and inode leak when deleting inode with xattrs

2013-03-29 17:08:43 +01:00

romfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

squashfs

fs: Limit sys_mount to only request filesystem modules. (Part 3)

2013-03-11 07:09:48 -07:00

sysfs

sysfs: check if one entry has been removed before freeing

2013-04-05 15:35:52 -07:00

sysv

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

ubifs

UBIFS: make space fixup work in the remount case

2013-03-14 11:20:22 +02:00

udf

fs: Limit sys_mount to only request filesystem modules. (Part 3)

2013-03-11 07:09:48 -07:00

ufs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-04-30 09:36:50 -07:00

xfs

Merge tag 'for-linus-v3.9-rc4' of git://oss.sgi.com/xfs/xfs

2013-03-19 15:17:40 -07:00

aio.c

aio: fix possible invalid memory access when DEBUG is enabled

2013-04-26 07:56:18 -07:00

anon_inodes.c

get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero

2013-02-26 02:46:11 -05:00

attr.c

…

bad_inode.c

…

binfmt_aout.c

coredump: factor out the setting of PF_DUMPCORE

2013-04-30 17:04:06 -07:00

binfmt_elf_fdpic.c

coredump: factor out the setting of PF_DUMPCORE

2013-04-30 17:04:06 -07:00

binfmt_elf.c

coredump: factor out the setting of PF_DUMPCORE

2013-04-30 17:04:06 -07:00

binfmt_em86.c

…

binfmt_flat.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

binfmt_misc.c

binfmt_misc: reuse string_unescape_inplace()

2013-04-30 17:04:03 -07:00

binfmt_script.c

…

binfmt_som.c

…

bio-integrity.c

…

bio.c

Revert "block: add missing block_bio_complete() tracepoint"

2013-04-18 09:00:26 -07:00

block_dev.c

fs/block_dev.c: no need to check inode->i_bdev in bd_forget()

2013-04-30 17:04:00 -07:00

buffer.c

fs/buffer.c: remove unnecessary init operation after allocating buffer_head.

2013-04-29 15:54:39 -07:00

char_dev.c

…

compat_binfmt_elf.c

…

compat_ioctl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

compat.c

Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys

2013-03-12 11:05:45 -07:00

coredump.c

coredump: change wait_for_dump_helpers() to use wait_event_interruptible()

2013-04-30 17:04:06 -07:00

coredump.h

…

dcache.c

fs/dcache.c: add cond_resched() to shrink_dcache_parent()

2013-04-30 17:04:00 -07:00

dcookies.c

…

direct-io.c

direct-io: submit bio after boundary buffer is added to it

2013-04-29 15:54:29 -07:00

drop_caches.c

…

eventfd.c

…

eventpoll.c

epoll: cleanup: use RCU_INIT_POINTER when nulling

2013-04-30 17:04:04 -07:00

exec.c

set_task_comm: kill the pointless memset() + wmb()

2013-04-30 17:04:07 -07:00

fcntl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

fhandle.c

…

fifo.c

…

file_table.c

cache the value of file_inode() in struct file

2013-03-01 19:48:30 -05:00

file.c

locking: Various static lock initializer fixes

2013-02-19 08:42:45 +01:00

filesystems.c

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

fs_struct.c

constify path_get/path_put and fs_struct.c stuff

2013-03-01 23:51:07 -05:00

fs-writeback.c

writeback: set worker desc to identify writeback workers in task dumps

2013-04-30 17:04:02 -07:00

generic_acl.c

…

inode.c

vfs: Revert spurious fix to spinning prevention in prune_icache_sb

2013-04-13 16:13:55 -07:00

internal.h

Don't bother with redoing rw_verify_area() from default_file_splice_from()

2013-03-21 13:11:11 -04:00

ioctl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ioprio.c

…

Kconfig

fuse: Move CUSE Kconfig entry from fs/Kconfig into fs/fuse/Kconfig

2013-01-17 13:08:45 +01:00

Kconfig.binfmt

fs: make binfmt support for #! scripts modular and removable

2013-04-30 17:04:04 -07:00

libfs.c

…

locks.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

Makefile

fs: make binfmt support for #! scripts modular and removable

2013-04-30 17:04:04 -07:00

mbcache.c

…

mount.h

…

mpage.c

…

namei.c

vfs: don't BUG_ON() if following a /proc fd pseudo-symlink results in a symlink

2013-03-08 09:03:07 -08:00

namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-04-09 12:22:49 -07:00

no-block.c

…

open.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-03-03 13:23:03 -08:00

pipe.c

vfs: fix pipe counter breakage

2013-03-12 08:29:17 -07:00

pnode.c

vfs: Carefully propogate mounts across user namespaces

2013-03-27 07:50:05 -07:00

pnode.h

vfs: Carefully propogate mounts across user namespaces

2013-03-27 07:50:05 -07:00

posix_acl.c

…

proc_namespace.c

…

read_write.c

fs/read_write.c: fix generic_file_llseek() comment

2013-04-29 15:54:28 -07:00

read_write.h

…

readdir.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

select.c

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

seq_file.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-03-03 13:23:03 -08:00

signalfd.c

…

splice.c

Don't bother with redoing rw_verify_area() from default_file_splice_from()

2013-03-21 13:11:11 -04:00

stack.c

…

stat.c

switch vfs_getattr() to struct path

2013-02-26 02:46:08 -05:00

statfs.c

…

super.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

sync.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

timerfd.c

compat: restore timerfd settime and gettime compat syscalls

2013-03-02 09:35:13 -05:00

utimes.c

…

xattr_acl.c

…

xattr.c

…