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Darrick J. Wong 59cd0cbc75 Fix race between proc_readdir and remove_proc_entry 
Fix the following race:

proc_readdir				remove_proc_entry
============				=================

spin_lock(&proc_subdir_lock);
[choose PDE to start filldir from]
spin_unlock(&proc_subdir_lock);
					spin_lock(&proc_subdir_lock);
					[find PDE]
					[free PDE, refcount is 0]
					spin_unlock(&proc_subdir_lock);
		    /* boom */
if (filldir(dirent, de->name, ...

[de_put on error path --adobriyan]
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:02 -07:00
..
9p
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adfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
affs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
afs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
autofs
…
autofs4
…
befs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
bfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
cifs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
coda
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
configfs
…
cramfs
mm: make read_cache_page synchronous
2007-05-07 12:12:51 -07:00
debugfs
…
devpts
devpts: add fsnotify create event
2007-05-08 11:14:59 -07:00
dlm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
2007-05-07 12:26:27 -07:00
ecryptfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
efs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
exportfs
…
ext2
ext2/3/4: fix file date underflow on ext2 3 filesystems on 64 bit systems
2007-05-08 11:14:58 -07:00
ext3
ext3: dirindex error pointer issues
2007-05-08 11:15:01 -07:00
ext4
ext3: dirindex error pointer issues
2007-05-08 11:15:01 -07:00
fat
is_power_of_2 in fat
2007-05-08 11:14:59 -07:00
freevxfs
freevxfs: possible null pointer dereference fix
2007-05-08 11:14:59 -07:00
fuse
add filesystem subtype support
2007-05-08 11:15:01 -07:00
gfs2
Factor outstanding I/O error handling
2007-05-08 11:14:57 -07:00
hfs
is_power_of_2 in fs/hfs
2007-05-08 11:14:59 -07:00
hfsplus
is_power_of_2 in fs/hfs
2007-05-08 11:14:59 -07:00
hostfs
uml: hostfs style fixes
2007-05-08 11:14:57 -07:00
hpfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
hppfs
…
hugetlbfs
hugetlbfs: add NULL check in hugetlb_zero_setup()
2007-05-07 12:12:57 -07:00
isofs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
jbd
…
jbd2
…
jffs2
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
jfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
lockd
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
minix
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
msdos
…
ncpfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
nfs
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
nfs_common
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nfsd
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
nls
…
ntfs
mm: move common segment checks to separate helper function
2007-05-08 11:14:57 -07:00
ocfs2
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
openpromfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
partitions
mm: optimize acorn partition truncate
2007-05-07 12:12:55 -07:00
proc
Fix race between proc_readdir and remove_proc_entry
2007-05-08 11:15:02 -07:00
qnx4
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
ramfs
…
reiserfs
reiserfs: correct misspelled "REISERFS_PROC_INFO" to "CONFIG_REISERFS_PROC_INFO"
2007-05-08 11:15:00 -07:00
romfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
smbfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
sysfs
…
sysv
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
udf
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
ufs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
vfat
…
xfs
mm: move common segment checks to separate helper function
2007-05-08 11:14:57 -07:00
aio.c
KMEM_CACHE(): simplify slab cache creation
2007-05-07 12:12:55 -07:00
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
…
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
…
binfmt_script.c
…
binfmt_som.c
…
bio.c
KMEM_CACHE(): simplify slab cache creation
2007-05-07 12:12:55 -07:00
block_dev.c
is_power_of_2 in fs/block_dev.c
2007-05-08 11:14:59 -07:00
buffer.c
block_write_full_page(): report ENOSPC
2007-05-08 11:14:57 -07:00
char_dev.c
…
compat_ioctl.c
…
compat.c
…
dcache.c
mm: shrink parent dentries when shrinking slab
2007-05-08 11:14:58 -07:00
dcookies.c
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direct-io.c
…
dnotify.c
…
dquot.c
mm: remove destroy_dirty_buffers from invalidate_bdev()
2007-05-07 12:12:55 -07:00
drop_caches.c
…
eventpoll.c
epoll: optimizations and cleanups
2007-05-08 11:15:01 -07:00
exec.c
exec: fix remove_arg_zero
2007-05-08 11:15:00 -07:00
fcntl.c
…
fifo.c
…
file_table.c
…
file.c
…
filesystems.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
fs-writeback.c
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generic_acl.c
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inode.c
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
inotify_user.c
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inotify.c
…
internal.h
…
ioctl.c
…
ioprio.c
…
Kconfig
…
Kconfig.binfmt
blackfin architecture
2007-05-07 12:12:58 -07:00
libfs.c
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locks.c
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
Makefile
…
mbcache.c
…
mpage.c
Factor outstanding I/O error handling
2007-05-08 11:14:57 -07:00
namei.c
mm: make read_cache_page synchronous
2007-05-07 12:12:51 -07:00
namespace.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
nfsctl.c
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no-block.c
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open.c
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pipe.c
…
pnode.c
…
pnode.h
…
posix_acl.c
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quota_v1.c
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quota_v2.c
…
quota.c
…
read_write.c
use use SEEK_MAX to validate user lseek arguments
2007-05-08 11:14:59 -07:00
read_write.h
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readdir.c
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select.c
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seq_file.c
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splice.c
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stack.c
…
stat.c
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super.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
sync.c
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utimes.c
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xattr_acl.c
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xattr.c
…