Oleg Nesterov 7b1c6154fa [PATCH] coredump: don't take tasklist_lock ...

This patch removes tasklist_lock from zap_threads().
This is safe wrt:

	do_exit:
		The caller holds mm->mmap_sem. This means that task which
		shares the same ->mm can't pass exit_mm(), so it can't be
		unhashed from init_task.tasks or ->thread_group lists.

	fork:
		None of sub-threads can fork after zap_process(leader). All
		processes which were created before this point should be
		visible to zap_threads() because copy_process() adds the new
		process to the tail of init_task.tasks list, and ->siglock
		lock/unlock provides a memory barrier.

	de_thread:
		It does list_replace_rcu(&leader->tasks, &current->tasks).
		So zap_threads() will see either old or new leader, it does
		not matter. However, it can change p->sighand, so we should
		use lock_task_sighand() in zap_process().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-06-26 09:58:27 -07:00

..

9p

Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

2006-06-25 10:54:14 -07:00

adfs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

affs

[PATCH] fix %s in affs_fill_super()

2006-06-25 10:01:22 -07:00

afs

[PATCH] fs: use list_move()

2006-06-26 09:58:18 -07:00

autofs

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

autofs4

[PATCH] fs: use list_move()

2006-06-26 09:58:18 -07:00

befs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

bfs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

cifs

Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

2006-06-24 13:07:53 -04:00

coda

[PATCH] use list_add_tail() instead of list_add()

2006-06-26 09:58:17 -07:00

configfs

[PATCH] fs: use list_move()

2006-06-26 09:58:18 -07:00

cramfs

[PATCH] read_mapping_page for address space

2006-06-23 07:43:02 -07:00

debugfs

Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

2006-06-24 13:07:53 -04:00

devfs

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

devpts

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

efs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

exportfs

[PATCH] NFS server subtree_check returns dubious value

2006-05-21 12:59:16 -07:00

ext2

[PATCH] ext2: cleanup: put_page and comment fix

2006-06-25 10:01:25 -07:00

ext3

[PATCH] ext3: Add "-o bh" option

2006-06-26 09:58:20 -07:00

fat

[PATCH] fs/fat/misc.c: unexport fat_sync_bhs

2006-06-23 07:43:03 -07:00

freevxfs

[PATCH] fs/freevxfs: cleanup of spelling errors

2006-06-25 10:01:01 -07:00

fuse

Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

2006-06-25 10:54:14 -07:00

hfs

[PATCH] read_mapping_page for address space

2006-06-23 07:43:02 -07:00

hfsplus

[PATCH] read_mapping_page for address space

2006-06-23 07:43:02 -07:00

hostfs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

hpfs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

hppfs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

hugetlbfs

[PATCH] tightening hugetlb strict accounting

2006-06-23 07:42:48 -07:00

isofs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

jbd

[PATCH] ext3: fix memory leak when the journal file is corrupted

2006-06-25 10:01:07 -07:00

jffs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

jffs2

[PATCH] fs: use list_move()

2006-06-26 09:58:18 -07:00

jfs

[PATCH] read_mapping_page for address space

2006-06-23 07:43:02 -07:00

lockd

NLM: Fix reclaim races

2006-06-09 09:40:27 -04:00

minix

[PATCH] read_mapping_page for address space

2006-06-23 07:43:02 -07:00

msdos

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

ncpfs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

nfs

Fix NFS2 compile error

2006-06-25 12:30:33 -07:00

nfs_common

[PATCH] nfsacl: Solaris VxFS compatibility fix

2005-10-11 09:46:54 -07:00

nfsd

[PATCH] fs: use list_move()

2006-06-26 09:58:18 -07:00

nls

[PATCH] fs: Use ARRAY_SIZE macro

2006-03-24 07:33:19 -08:00

ntfs

[PATCH] Prepare for __copy_from_user_inatomic to not zero missed bytes

2006-06-25 10:01:09 -07:00

ocfs2

[PATCH] fs: use list_move()

2006-06-26 09:58:18 -07:00

openpromfs

[PATCH] openpromfs: factorize out

2006-06-25 10:01:05 -07:00

partitions

[PATCH] make kernel warn about incorrectly sized partitions

2006-06-23 07:43:09 -07:00

proc

[PATCH] SELinux: Add sockcreate node to procattr API

2006-06-26 09:58:26 -07:00

qnx4

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

ramfs

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

reiserfs

[PATCH] reiserfs: remove reiserfs_aio_write()

2006-06-26 09:58:19 -07:00

romfs

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

smbfs

[PATCH] fs: use list_move()

2006-06-26 09:58:18 -07:00

sysfs

[PATCH] core: use list_move()

2006-06-26 09:58:17 -07:00

sysv

[PATCH] read_mapping_page for address space

2006-06-23 07:43:02 -07:00

udf

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

ufs

[PATCH] fs/ufs/inode.c: make 2 functions static

2006-06-25 10:01:04 -07:00

vfat

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

xfs

[PATCH] xfs: update ->flush method proto

2006-06-25 17:43:32 -07:00

aio.c

[PATCH] list: use list_replace_init() instead of list_splice_init()

2006-06-23 07:43:07 -07:00

attr.c

[PATCH] capable/capability.h (fs/)

2006-01-11 18:42:13 -08:00

bad_inode.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

binfmt_aout.c

[PATCH] dump_thread() cleanup

2006-01-10 08:01:25 -08:00

binfmt_elf_fdpic.c

[PATCH] frv: binfmt_elf_fdpic __user annotations

2006-06-23 07:42:54 -07:00

binfmt_elf.c

[PATCH] binflt_elf: remove more casts

2006-06-23 07:43:05 -07:00

binfmt_em86.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

binfmt_flat.c

[PATCH] uclinux: use PER_LINUX_32BIT in binfmt_flat

2006-06-25 21:04:24 -07:00

binfmt_misc.c

Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

2006-06-24 13:07:53 -04:00

binfmt_script.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

binfmt_som.c

[PATCH] mm: mm_init set_mm_counters

2005-10-29 21:40:38 -07:00

bio.c

[PATCH] Fix missing ret assignment in __bio_map_user() error path

2006-06-17 10:52:12 -07:00

block_dev.c

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

buffer.c

[PATCH] Kill PF_SYNCWRITE flag

2006-06-23 17:10:39 +02:00

char_dev.c

[PATCH] Simplify proc/devices and fix early termination regression

2006-03-31 12:18:53 -08:00

compat_ioctl.c

[PATCH] i4l: Gigaset drivers: add IOCTLs to compat_ioctl.h

2006-06-26 09:58:23 -07:00

compat.c

[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry

2006-06-23 07:42:45 -07:00

dcache.c

[PATCH] core: use list_move()

2006-06-26 09:58:17 -07:00

dcookies.c

[PATCH] Use __read_mostly on some hot fs variables

2006-03-26 08:56:56 -08:00

direct-io.c

[PATCH] Kill PF_SYNCWRITE flag

2006-06-23 17:10:39 +02:00

dnotify.c

[PATCH] Use __read_mostly on some hot fs variables

2006-03-26 08:56:56 -08:00

dquot.c

[PATCH] use list_add_tail() instead of list_add()

2006-06-26 09:58:17 -07:00

drop_caches.c

[PATCH] drop-pagecache

2006-01-08 20:12:40 -08:00

eventpoll.c

[PATCH] epoll: use unlocked wqueue operations

2006-06-25 10:01:13 -07:00

exec.c

[PATCH] coredump: don't take tasklist_lock

2006-06-26 09:58:27 -07:00

fcntl.c

BUG_ON() Conversion in fs/fcntl.c

2006-04-02 13:37:19 +02:00

fifo.c

[PATCH] pipe.c/fifo.c code cleanups

2006-04-11 13:53:33 +02:00

file_table.c

[PATCH] percpu counter data type changes to suppport more than 2**31 ext3 free blocks counter

2006-06-23 07:43:06 -07:00

file.c

[PATCH] for_each_possible_cpu: fixes for generic part

2006-03-28 09:16:05 -08:00

filesystems.c

[PATCH] fix missing includes

2005-10-30 17:37:32 -08:00

fs-writeback.c

[PATCH] Kill PF_SYNCWRITE flag

2006-06-23 17:10:39 +02:00

inode.c

BUG_ON() Conversion in fs/inode.c

2006-04-02 13:38:18 +02:00

inotify_user.c

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

inotify.c

[PATCH] inotify (4/5): allow watch removal from event handler

2006-06-20 05:25:19 -04:00

ioctl.c

[PATCH] capable/capability.h (fs/)

2006-01-11 18:42:13 -08:00

ioprio.c

[PATCH] lsm: add task_setioprio hook

2006-06-23 07:42:53 -07:00

Kconfig

[PATCH] nfsd kconfig: select things at the closest tristate instead of bool

2006-06-26 09:58:23 -07:00

Kconfig.binfmt

[PATCH] frv: suppress configuration of certain features for FRV

2006-01-08 20:13:36 -08:00

libfs.c

[PATCH] core: use list_move()

2006-06-26 09:58:17 -07:00

locks.c

[PATCH] fs/locks.c: make posix_locks_deadlock() static

2006-06-23 07:43:03 -07:00

Makefile

[PATCH] inotify (1/5): split kernel API from userspace support

2006-06-20 05:25:17 -04:00

mbcache.c

[PATCH] Typo fixes

2006-03-28 09:16:08 -08:00

mpage.c

[PATCH] writeback: fix range handling

2006-06-23 07:42:49 -07:00

namei.c

[PATCH] Implement AT_SYMLINK_FOLLOW flag for linkat

2006-06-25 10:01:22 -07:00

namespace.c

[PATCH] core: use list_move()

2006-06-26 09:58:17 -07:00

nfsctl.c

[PATCH] fs: Use ARRAY_SIZE macro

2006-03-24 07:33:19 -08:00

open.c

[PATCH] ftruncate does not always update m/ctime

2006-06-25 10:01:15 -07:00

pipe.c

[PATCH] VFS: Permit filesystem to override root dentry on mount

2006-06-23 07:42:45 -07:00

pnode.c

[PATCH] core: use list_move()

2006-06-26 09:58:17 -07:00

pnode.h

[PATCH] unbindable mounts

2005-11-07 18:18:11 -08:00

posix_acl.c

[PATCH] gfp flags annotations - part 1

2005-10-08 15:00:57 -07:00

quota_v1.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

quota_v2.c

[PATCH] sem2mutex: quota

2006-03-23 07:38:11 -08:00

quota.c

[PATCH] sem2mutex: quota

2006-03-23 07:38:11 -08:00

read_write.c

[PATCH] splice: unlikely() optimizations

2006-04-11 13:56:09 +02:00

readdir.c

[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

2006-01-09 15:59:24 -08:00

select.c

[PATCH] fs: sys_poll with timeout -1 bug fix

2006-06-25 10:01:22 -07:00

seq_file.c

[PATCH] sem2mutex: fs/seq_file.c

2006-03-23 07:38:12 -08:00

splice.c

[PATCH] splice: retrieve mapping after locking the page

2006-06-23 17:10:39 +02:00

stat.c

[PATCH] powerpc: Wire up *at syscalls

2006-04-28 21:04:59 +10:00

super.c

Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

2006-06-24 13:07:53 -04:00

sync.c

[PATCH] writeback: fix range handling

2006-06-23 07:42:49 -07:00

xattr_acl.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

xattr.c

[PATCH] log more info for directory entry change events

2006-06-20 05:25:28 -04:00