john stultz 4614a696bd procfs: allow threads to rename siblings via /proc/pid/tasks/tid/comm ... Setting a thread's comm to be something unique is a very useful ability and is helpful for debugging complicated threaded applications. However currently the only way to set a thread name is for the thread to name itself via the PR_SET_NAME prctl. However, there may be situations where it would be advantageous for a thread dispatcher to be naming the threads its managing, rather then having the threads self-describe themselves. This sort of behavior is available on other systems via the pthread_setname_np() interface. This patch exports a task's comm via proc/pid/comm and proc/pid/task/tid/comm interfaces, and allows thread siblings to write to these values. [akpm@linux-foundation.org: cleanups] Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Mike Fulton <fultonm@ca.ibm.com> Cc: Sean Foley <Sean_Foley@ca.ibm.com> Cc: Darren Hart <dvhltc@us.ibm.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-12-15 08:53:24 -08:00
..
9p	9p: fix build breakage introduced by FS-Cache	2009-12-01 07:35:11 -08:00
adfs	…
affs	…
afs	afs: remove manual O_SYNC handling	2009-12-10 15:02:50 +01:00
autofs	…
autofs4	…
befs	…
bfs	…
btrfs	vfs: Implement proper O_SYNC semantics	2009-12-10 15:02:50 +01:00
cachefiles	CacheFiles: Update IMA counters when using dentry_open	2009-12-01 07:35:11 -08:00
cifs	vfs: Implement proper O_SYNC semantics	2009-12-10 15:02:50 +01:00
coda	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
configfs	…
cramfs	…
debugfs	debugfs: fix create mutex racy fops and private data	2009-12-11 11:24:53 -08:00
devpts	devpts_get_tty() should validate inode	2009-12-11 15:18:05 -08:00
dlm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm	2009-12-10 09:33:59 -08:00
ecryptfs	…
efs	…
exofs	exofs: Multi-device mirror support	2009-12-10 09:59:23 +02:00
exportfs	…
ext2	ext2: fix comment in ext2_find_entry about return values	2009-12-10 15:02:53 +01:00
ext3	ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks()	2009-12-10 15:02:55 +01:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
fat	…
freevxfs	…
fscache	FS-Cache: Provide nop fscache_stat_d() if CONFIG_FSCACHE_STATS=n	2009-11-20 21:50:44 +00:00
fuse	fuse: reject O_DIRECT flag also in fuse_create	2009-11-27 16:37:13 +01:00
gfs2	GFS2: Fix glock refcount issues	2009-12-03 12:00:12 +00:00
hfs	hfs: fix a potential buffer overflow	2009-12-15 08:53:10 -08:00
hfsplus	…
hostfs	…
hpfs	…
hppfs	…
hugetlbfs	…
isofs	zisofs: Implement reading of compressed files when PAGE_CACHE_SIZE > compress block size	2009-12-10 15:02:49 +01:00
jbd	fs/jbd: Export log_start_commit to fix ext3 build.	2009-11-12 10:24:12 +01:00
jbd2	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6	2009-12-11 15:31:13 -08:00
jffs2	Merge branch 'for-next' into for-linus	2009-12-07 18:36:35 +01:00
jfs	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
lockd	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
minix	…
ncpfs	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
nfs	Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6	2009-12-14 10:00:24 -08:00
nfs_common	…
nfsd	Fix memory corruption caused by nfsd readdir+	2009-11-14 12:55:55 -08:00
nilfs2	nilfs2: separate wait function from nilfs_segctor_write	2009-11-30 21:17:52 +09:00
nls	…
notify	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
ntfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
ocfs2	quota: Move definition of QFMT_OCFS2 to linux/quota.h	2009-12-10 15:02:53 +01:00
omfs	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
openpromfs	…
partitions	partitions: read whole sector with EFI GPT header	2009-11-23 09:29:58 +01:00
proc	procfs: allow threads to rename siblings via /proc/pid/tasks/tid/comm	2009-12-15 08:53:24 -08:00
qnx4	…
quota	quota: Implement quota format with 64-bit space and inode limits	2009-12-10 15:02:54 +01:00
ramfs	…
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
romfs	…
smbfs	…
squashfs	…
sysfs	sysfs: sysfs_setattr remove unnecessary permission check.	2009-12-11 11:24:54 -08:00
sysv	…
ubifs	Merge git://git.infradead.org/ubifs-2.6	2009-12-10 09:31:45 -08:00
udf	udf: Avoid IO in udf_clear_inode	2009-12-14 21:40:04 +01:00
ufs	…
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
Kconfig	…
Kconfig.binfmt	…
Makefile	…
aio.c	…
anon_inodes.c	…
attr.c	…
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
binfmt_elf_fdpic.c	nommu: fix malloc performance by adding uninitialized flag	2009-12-15 08:53:24 -08:00
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	…
binfmt_script.c	…
binfmt_som.c	…
bio-integrity.c	…
bio.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
block_dev.c	…
buffer.c	…
char_dev.c	…
compat.c	…
compat_binfmt_elf.c	…
compat_ioctl.c	md: move compat_ioctl handling into md.c	2009-12-14 12:51:41 +11:00
dcache.c	…
dcookies.c	…
direct-io.c	Fix regression in direct writes performance due to WRITE_ODIRECT flag removal	2009-11-26 09:46:46 +01:00
drop_caches.c	…
eventfd.c	…
eventpoll.c	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
exec.c	procfs: allow threads to rename siblings via /proc/pid/tasks/tid/comm	2009-12-15 08:53:24 -08:00
fcntl.c	fcntl: rename F_OWNER_GID to F_OWNER_PGRP	2009-11-17 17:40:33 -08:00
fifo.c	…
file.c	…
file_table.c	…
filesystems.c	…
fs-writeback.c	writeback: remove unused nonblocking and congestion checks	2009-12-03 13:54:25 +01:00
fs_struct.c	…
generic_acl.c	…
inode.c	…
internal.h	…
ioctl.c	__generic_block_fiemap(): fix for files bigger than 4GB	2009-11-12 07:26:01 -08:00
ioprio.c	…
libfs.c	…
locks.c	…
mbcache.c	…
mpage.c	…
namei.c	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6	2009-12-11 15:31:13 -08:00
namespace.c	…
nfsctl.c	…
no-block.c	…
open.c	LSM: Move security_path_chmod()/security_path_chown() to after mutex_lock().	2009-11-24 08:49:26 +11:00
pipe.c	…
pnode.c	…
pnode.h	…
posix_acl.c	…
read_write.c	…
read_write.h	…
readdir.c	…
select.c	…
seq_file.c	…
signalfd.c	…
splice.c	…
stack.c	…
stat.c	…
super.c	…
sync.c	kill wait_on_page_writeback_range	2009-12-10 15:02:50 +01:00
timerfd.c	…
utimes.c	…
xattr.c	…
xattr_acl.c	VFS: Use GFP_NOFS in posix_acl_from_xattr()	2009-12-03 11:48:07 +00:00