mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-11-03 13:02:54 -06:00
Code Issues Packages Projects Releases Wiki Activity
Files
cedb4a7d9f6aedb0dce94d6285b69dcb3c10fa05
linux/fs
T
History
Sergey Senozhatsky f85acd81aa ioprio: rcu_read_lock/unlock protect find_task_by_vpid call (V2) 
Commit 4221a9918e "Add RCU check for
find_task_by_vpid()" introduced rcu_lockdep_assert to find_task_by_pid_ns=

Assertion failed in sys_ioprio_get. The patch is fixing assertion
failure in ioprio_set as well.

 kernel/pid.c:419 invoked rcu_dereference_check() without protection!

 stack backtrace:
 Pid: 4254, comm: iotop Not tainted
 Call Trace:
 [<ffffffff810656f2>] lockdep_rcu_dereference+0xaa/0xb2
 [<ffffffff81053c67>] find_task_by_pid_ns+0x4f/0x68
 [<ffffffff81053c9d>] find_task_by_vpid+0x1d/0x1f
 [<ffffffff811104e2>] sys_ioprio_get+0x50/0x2da
 [<ffffffff81002182>] system_call_fastpath+0x16/0x1b

V2: rcu critical section expanded according to comment by Paul E. McKenney

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-11-10 14:40:53 +01:00
..
9p
convert v9fs
2010-10-29 04:16:38 -04:00
adfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
affs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
afs
convert afs
2010-10-29 04:17:13 -04:00
autofs4
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
befs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
bfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
2010-10-30 09:05:48 -07:00
cachefiles
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
ceph
convert ceph
2010-10-29 04:17:18 -04:00
cifs
cifs: make cifs_set_oplock_level() take a cifsInodeInfo pointer
2010-11-05 17:39:01 +00:00
coda
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
configfs
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
cramfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
debugfs
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
devpts
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
dlm
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
2010-10-22 17:33:16 -07:00
ecryptfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6
2010-10-29 14:15:12 -07:00
efs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
exofs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
exportfs
exportfs: use dget_parent
2010-10-25 21:26:13 -04:00
ext2
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
ext3
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
ext4
ext4: Remove useless spinlock in ext4_getattr()
2010-11-02 10:38:30 -04:00
fat
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
freevxfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
fscache
Add a dummy printk function for the maintenance of unused printks
2010-08-12 09:51:35 -07:00
fuse
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
gfs2
locks: let the caller free file_lock on ->setlease failure
2010-10-31 06:35:15 -07:00
hfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
hfsplus
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
hostfs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
hpfs
Merge branches 'irq-core-for-linus' and 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-31 20:40:24 -04:00
hppfs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
hugetlbfs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
isofs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
jbd
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
2010-10-27 20:13:18 -07:00
jbd2
jbd2: Convert jbd2_slab_create_sem to mutex
2010-10-30 12:12:50 +02:00
jffs2
Merge git://git.infradead.org/mtd-2.6
2010-10-30 08:31:35 -07:00
jfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
lockd
lockd: fix nlmsvc_notify_blocked locking
2010-10-27 21:39:50 +02:00
logfs
fs: logfs: Fix up MTD=y build.
2010-11-01 16:34:56 -04:00
minix
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
ncpfs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
nfs
locks: let the caller free file_lock on ->setlease failure
2010-10-31 06:35:15 -07:00
nfs_common
…
nfsd
locks: let the caller free file_lock on ->setlease failure
2010-10-31 06:35:15 -07:00
nilfs2
convert nilfs
2010-10-29 04:16:53 -04:00
nls
…
notify
make fanotify_read() restartable across signals
2010-10-30 14:07:35 -04:00
ntfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
ocfs2
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
omfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
openpromfs
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
partitions
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
2010-10-25 07:45:10 -07:00
proc
switch procfs to ->mount()
2010-10-29 04:17:01 -04:00
qnx4
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
quota
quota: Fix possible oops in __dquot_initialize()
2010-10-28 01:30:06 +02:00
ramfs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
reiserfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
romfs
convert get_sb_mtd() users to ->mount()
2010-10-29 04:16:26 -04:00
squashfs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus
2010-10-29 08:48:58 -07:00
sysfs
convert sysfs
2010-10-29 04:17:08 -04:00
sysv
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
ubifs
convert ubifs
2010-10-29 04:16:36 -04:00
udf
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
ufs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
xfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
aio.c
new helper: ihold()
2010-10-25 21:26:11 -04:00
anon_inodes.c
convert get_sb_pseudo() users
2010-10-29 04:16:33 -04:00
attr.c
check ATTR_SIZE contraints in inode_change_ok
2010-08-09 16:47:39 -04:00
bad_inode.c
bkl: Remove locked .ioctl file operation
2010-08-14 00:24:24 +02:00
binfmt_aout.c
Don't dump task struct in a.out core-dumps
2010-10-14 10:57:40 -07:00
binfmt_elf_fdpic.c
…
binfmt_elf.c
ARM: 6342/1: fix ASLR of PIE executables
2010-10-08 10:02:53 +01:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
binfmt_script.c
Make do_execve() take a const filename pointer
2010-08-17 18:07:43 -07:00
binfmt_som.c
…
bio-integrity.c
fs/bio-integrity.c: return -ENOMEM on kmalloc failure
2010-08-23 13:36:59 +02:00
bio.c
bio: take care not overflow page count when mapping/copying user data
2010-11-10 14:40:43 +01:00
block_dev.c
convert get_sb_pseudo() users
2010-10-29 04:16:33 -04:00
buffer.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2010-10-26 17:58:44 -07:00
char_dev.c
Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
2010-10-22 10:52:56 -07:00
compat_binfmt_elf.c
…
compat_ioctl.c
Merge 'staging-next' to Linus's tree
2010-10-28 09:44:56 -07:00
compat.c
fs/compat.c: fix build on MIPS/s390
2010-10-30 08:19:35 -07:00
dcache.c
fs: use RCU read side protection in d_validate
2010-10-25 21:26:13 -04:00
dcookies.c
…
direct-io.c
fs/direct-io.c: fix truncation error in dio_complete() return
2010-10-26 16:52:13 -07:00
drop_caches.c
simplify checks for I_CLEAR/I_FREEING
2010-08-09 16:47:44 -04:00
eventfd.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
eventpoll.c
epoll: make epoll_wait() use the hrtimer range feature
2010-10-27 18:03:18 -07:00
exec.c
exec: don't turn PF_KTHREAD off when a target command was not found
2010-10-27 18:03:13 -07:00
fcntl.c
fasync: Fix placement of FASYNC flag comment
2010-10-27 18:17:02 -07:00
fifo.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
file_table.c
fs: allow for more than 2^31 files
2010-10-26 16:52:15 -07:00
file.c
vfs: use kmalloc() to allocate fdmem if possible
2010-08-11 08:59:02 -07:00
filesystems.c
…
fs_struct.c
fs: fs_struct rwlock to spinlock
2010-08-18 08:35:46 -04:00
fs-writeback.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
2010-10-30 09:05:48 -07:00
generic_acl.c
vfs: update ctime when changing the file's permission by setfacl
2010-08-18 01:04:22 -04:00
inode.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2010-10-26 17:58:44 -07:00
internal.h
braino in internal.h
2010-10-29 05:49:13 -04:00
ioctl.c
fs: Add FITRIM ioctl
2010-10-27 21:30:11 -04:00
ioprio.c
ioprio: rcu_read_lock/unlock protect find_task_by_vpid call (V2)
2010-11-10 14:40:53 +01:00
Kconfig
Merge 'staging-next' to Linus's tree
2010-10-28 09:44:56 -07:00
Kconfig.binfmt
coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
2010-10-27 18:03:12 -07:00
libfs.c
convert get_sb_pseudo() users
2010-10-29 04:16:33 -04:00
locks.c
locks: remove fl_copy_lock lock_manager operation
2010-10-31 06:35:15 -07:00
Makefile
Merge 'staging-next' to Linus's tree
2010-10-28 09:44:56 -07:00
mbcache.c
mbcache: Limit the maximum number of cache entries
2010-08-18 06:24:41 -04:00
mpage.c
…
namei.c
fix open/umount race
2010-10-29 04:14:56 -04:00
namespace.c
vfs: fix infinite loop caused by clone_mnt race
2010-10-25 21:24:16 -04:00
nfsctl.c
…
no-block.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
open.c
fix open/umount race
2010-10-29 04:14:56 -04:00
pipe.c
convert get_sb_pseudo() users
2010-10-29 04:16:33 -04:00
pnode.c
fs: brlock vfsmount_lock
2010-08-18 08:35:48 -04:00
pnode.h
…
posix_acl.c
…
read_write.c
readv/writev: do the same MAX_RW_COUNT truncation that read/write does
2010-10-29 10:36:49 -07:00
read_write.h
…
readdir.c
vfs: fix warning: 'dirent' is used uninitialized in this function
2010-08-09 20:45:05 -07:00
select.c
epoll: make epoll_wait() use the hrtimer range feature
2010-10-27 18:03:18 -07:00
seq_file.c
fs: take dcache_lock inside __d_path
2010-10-25 21:26:12 -04:00
signalfd.c
Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6
2010-10-26 10:13:10 -07:00
splice.c
splice: fix misuse of SPLICE_F_NONBLOCK
2010-08-07 18:52:56 +02:00
stack.c
…
stat.c
Mark arguments to certain syscalls as being const
2010-08-13 16:53:13 -07:00
statfs.c
add f_flags to struct statfs(64)
2010-08-09 16:48:44 -04:00
super.c
switch get_sb_ns() users
2010-10-29 04:17:03 -04:00
sync.c
get rid of file_fsync()
2010-08-09 16:47:43 -04:00
timerfd.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
utimes.c
Mark arguments to certain syscalls as being const
2010-08-13 16:53:13 -07:00
xattr_acl.c
…
xattr.c
…