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Steven Rostedt 64a07bd82e [PATCH] protect remove_proc_entry ... It has been discovered that the remove_proc_entry has a race in the removing of entries in the proc file system that are siblings. There's no protection around the traversing and removing of elements that belong in the same subdirectory. This subdirectory list is protected in other areas by the BKL. So the BKL was at first used to protect this area too, but unfortunately, remove_proc_entry may be called with spinlocks held. The BKL may schedule, so this was not a solution. The final solution was to add a new global spin lock to protect this list, called proc_subdir_lock. This lock now protects the list in remove_proc_entry, and I also went around looking for other areas that this list is modified and added this protection there too. Care must be taken since these locations call several functions that may also schedule. Since I don't see any location that these functions that modify the subdirectory list are called by interrupts, the irqsave/restore versions of the spin lock was _not_ used. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		19 years ago
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9p	[PATCH] 9p: fix name consistency problems	19 years ago
adfs	[PATCH] cpuset memory spread: slab cache format	19 years ago
affs	[PATCH] cpuset memory spread: slab cache format	19 years ago
afs	[PATCH] fs: Use ARRAY_SIZE macro	19 years ago
autofs	…
autofs4	[PATCH] sem2mutex: autofs4 wq_sem	19 years ago
befs	fix typos "wich" -> "which"	19 years ago
bfs	[PATCH] cpuset memory spread: slab cache format	19 years ago
cifs	[PATCH] s/;;/;/g	19 years ago
coda	BUG_ON() Conversion in fs/coda/	19 years ago
configfs	[PATCH] BUG_ON() Conversion in fs/configfs/	19 years ago
cramfs	…
debugfs	[PATCH] debugfs: Add debugfs_create_blob() helper for exporting binary data	19 years ago
devfs	…
devpts	[PATCH] devpts: use lib/parser.c for parsing mount options	19 years ago
efs	[PATCH] cpuset memory spread: slab cache filesystems	19 years ago
exportfs	…
ext2	[PATCH] Ext2 flags shouldn't report "nogrpid"	19 years ago
ext3	[PATCH] ext3: Fix debug logging-only compilation error	19 years ago
fat	[PATCH] cpuset memory spread: slab cache format	19 years ago
freevxfs	[PATCH] cpuset memory spread: slab cache filesystems	19 years ago
fuse	…
hfs	…
hfsplus	…
hostfs	…
hpfs	[PATCH] cpuset memory spread: slab cache format	19 years ago
hppfs	[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem	19 years ago
hugetlbfs	[PATCH] convert hugetlbfs_counter to atomic	19 years ago
isofs	[PATCH] isofs: remove unused debugging macros	19 years ago
jbd	[PATCH] jbd: convert kjournald to kthread API	19 years ago
jffs	[PATCH] cpuset memory spread: slab cache format	19 years ago
jffs2	[PATCH] cpuset memory spread: slab cache format	19 years ago
jfs	[PATCH] cpuset memory spread: slab cache format	19 years ago
lockd	Merge git://git.linux-nfs.org/pub/linux/nfs-2.6	19 years ago
minix	[PATCH] fix messages in fs/minix	19 years ago
msdos	…
ncpfs	[PATCH] cpuset memory spread: slab cache format	19 years ago
nfs	Merge git://git.linux-nfs.org/pub/linux/nfs-2.6	19 years ago
nfs_common	…
nfsd	Merge git://git.linux-nfs.org/pub/linux/nfs-2.6	19 years ago
nls	[PATCH] fs: Use ARRAY_SIZE macro	19 years ago
ntfs	[PATCH] cpuset memory spread: slab cache filesystems	19 years ago
ocfs2	ocfs2: finally remove MLF* macros	19 years ago
openpromfs	…
partitions	[PATCH] s390: Remove old history/whitespave from partition code	19 years ago
proc	[PATCH] protect remove_proc_entry	19 years ago
qnx4	[PATCH] cpuset memory spread: slab cache format	19 years ago
ramfs	[PATCH] fs/*/file.c: drop insane header dependencies	19 years ago
reiserfs	[PATCH] indirect_print_item() warning fix	19 years ago
romfs	[PATCH] cpuset memory spread: slab cache format	19 years ago
smbfs	[PATCH] smbfs: Fix debug logging-only compilation error	19 years ago
sysfs	[PATCH] sysfs: fix a kobject leak in sysfs_add_link on the error path	19 years ago
sysv	[PATCH] cpuset memory spread: slab cache filesystems	19 years ago
udf	[PATCH] udf: fix uid/gid options and add uid/gid=ignore and forget options	19 years ago
ufs	typo patch for fs/ufs/super.c	19 years ago
vfat	…
xfs	[PATCH] cpuset memory spread slab cache hooks	19 years ago
Kconfig	Merge branch 'linus'	19 years ago
Kconfig.binfmt	…
Makefile	[PATCH] relay: migrate from relayfs to a generic relay API	19 years ago
aio.c	[PATCH] use kzalloc and kcalloc in core fs code	19 years ago
attr.c	…
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	[PATCH] x86_64: Increase the variability of the process stack on 64bit architectures	19 years ago
binfmt_elf_fdpic.c	BUG_ON() Conversion in fs/binfmt_elf_fdpic.c	19 years ago
binfmt_em86.c	…
binfmt_flat.c	[PATCH] flat binary loader doesn't check fd table full	19 years ago
binfmt_misc.c	…
binfmt_script.c	…
binfmt_som.c	…
bio.c	[PATCH] use kzalloc and kcalloc in core fs code	19 years ago
block_dev.c	[PATCH] sb_set_blocksize cleanup	19 years ago
buffer.c	[PATCH] freeze_bdev() cleanup	19 years ago
char_dev.c	[PATCH] use kzalloc and kcalloc in core fs code	19 years ago
compat.c	[PATCH] use kzalloc and kcalloc in core fs code	19 years ago
compat_ioctl.c	[PATCH] fs: Use ARRAY_SIZE macro	19 years ago
dcache.c	[PATCH] Reduce sched latency in shrink_dcache_sb()	19 years ago
dcookies.c	…
direct-io.c	[PATCH] direct-io: bug fix in dio handling write error	19 years ago
dnotify.c	…
dquot.c	[PATCH] cpuset memory spread: slab cache format	19 years ago
drop_caches.c	…
eventpoll.c	[PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications	19 years ago
exec.c	[PATCH] use kzalloc and kcalloc in core fs code	19 years ago
fcntl.c	[PATCH] Shrinks sizeof(files_struct) and better layout	19 years ago
fifo.c	…
file.c	[PATCH] Shrinks sizeof(files_struct) and better layout	19 years ago
file_table.c	[PATCH] get_empty_filp tweaks, inline epoll_init_file()	19 years ago
filesystems.c	…
fs-writeback.c	[PATCH] Move cond_resched() after iput() in sync_sb_inodes()	19 years ago
inode.c	[PATCH] fs/inode.c: make iprune_mutex static	19 years ago
inotify.c	[PATCH] inotify: lock avoidance with parent watch status in dentry	19 years ago
ioctl.c	…
ioprio.c	…
libfs.c	[PATCH] sem2mutex: fs/libfs.c	19 years ago
locks.c	lockd: stop abusing file_lock_list	19 years ago
mbcache.c	[PATCH] cpuset memory spread: slab cache filesystems	19 years ago
mpage.c	…
namei.c	Merge branch 'audit.b3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current	19 years ago
namespace.c	VFS: New /proc file /proc/self/mountstats	19 years ago
nfsctl.c	[PATCH] fs: Use ARRAY_SIZE macro	19 years ago
open.c	Merge branch 'audit.b3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current	19 years ago
pipe.c	[PATCH] use kzalloc and kcalloc in core fs code	19 years ago
pnode.c	[PATCH] s/;;/;/g	19 years ago
pnode.h	…
posix_acl.c	…
quota.c	[PATCH] sem2mutex: quota	19 years ago
quota_v1.c	…
quota_v2.c	[PATCH] sem2mutex: quota	19 years ago
read_write.c	[PATCH] remove needless check in fs/read_write.c	19 years ago
readdir.c	…
select.c	…
seq_file.c	[PATCH] sem2mutex: fs/seq_file.c	19 years ago
stat.c	…
super.c	[PATCH] use kzalloc and kcalloc in core fs code	19 years ago
xattr.c	[PATCH] Collect more inode information during syscall processing.	19 years ago
xattr_acl.c	…