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Miklos Szeredi 095da6cbb6 [PATCH] fuse: fix bitfield race 
Fix race in setting bitfields of fuse_conn.  Spotted by Andrew Morton.

The two fields ->connected and ->mounted were always changed with the
fuse_lock held.  But other bitfields in the same structure were changed
without the lock.  In theory this could lead to losing the assignment of
even the ones under lock.  The chosen solution is to change these two
fields to be a full unsigned type.  The other bitfields aren't "important"
enough to warrant the extra complexity of full locking or changing them to
bitops.

For all bitfields document why they are safe wrt. concurrent
assignments.

Also make the initialization of the 'num_waiting' atomic counter explicit.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-16 23:15:31 -08:00
..
9p
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
adfs
[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
2005-11-09 07:55:57 -08:00
affs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
afs
add loglevel to printk in fs/afs/cmservice.c
2006-01-11 01:52:40 +01:00
autofs
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
autofs4
[PATCH] autofs4 oops fix
2006-01-14 18:25:19 -08:00
befs
remove unused fs/befs/attribute.c
2005-11-08 16:54:53 +01:00
bfs
[PATCH] bfs iget() abuses
2005-10-04 13:22:01 -07:00
cifs
[PATCH] turn "const static" into "static const"
2006-01-10 08:01:55 -08:00
coda
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
configfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
cramfs
[PATCH] fs/cramfs/uncompress.c should #include <linux/cramfs_fs.h>
2005-09-10 10:06:35 -07:00
debugfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
devfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
devpts
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
efs
return statement cleanup - kill pointless parentheses
2006-01-15 02:37:08 +01:00
exportfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
ext2
[PATCH] ext2: remove d_splice_alias NULL check from ext2_lookup
2006-01-14 18:27:10 -08:00
ext3
[PATCH] ext3: remove d_splice_alias NULL check from ext3_lookup
2006-01-14 18:27:10 -08:00
fat
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
freevxfs
[PATCH] fix possible PAGE_CACHE_SHIFT overflows
2006-01-08 20:13:54 -08:00
fuse
[PATCH] fuse: fix bitfield race
2006-01-16 23:15:31 -08:00
hfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
hfsplus
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
hostfs
[PATCH] uml: hostfs - fix possible PAGE_CACHE_SHIFT overflows
2005-12-29 09:48:15 -08:00
hpfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
hppfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
hugetlbfs
[PATCH] Add tmpfs options for memory placement policies
2006-01-14 18:27:07 -08:00
isofs
[PATCH] isofs: remove d_splice_alias NULL check from isofs_lookup
2006-01-14 18:27:12 -08:00
jbd
[PATCH] jbd: split checkpoint lists
2006-01-06 08:33:59 -08:00
jffs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
jffs2
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
jfs
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
lockd
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
minix
[PATCH] update filesystems for new delete_inode behavior
2005-09-09 13:57:27 -07:00
msdos
[PATCH] fat: remove the unneeded vfat_find() in vfat_rename()
2005-10-30 17:37:32 -08:00
ncpfs
[PATCH] ncpfs: remove kmalloc wrapper
2006-01-14 18:27:12 -08:00
nfs
[PATCH] per-mountpoint noatime/nodiratime
2006-01-10 08:01:34 -08:00
nfs_common
[PATCH] nfsacl: Solaris VxFS compatibility fix
2005-10-11 09:46:54 -07:00
nfsd
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
nls
[PATCH] make some things static
2005-05-05 16:36:47 -07:00
ntfs
[PATCH] ntfs: remove superflous MS_NOATIME/MS_NODIRATIME assignments
2006-01-10 08:01:33 -08:00
ocfs2
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
openpromfs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
partitions
[PATCH] partitions: Read Rio Karma partition table
2006-01-16 23:15:29 -08:00
proc
[PATCH] convert /proc/devices to use seq_file interface
2006-01-14 18:25:19 -08:00
qnx4
fs/qnx4/bitmap.c: #if 0 qnx4_new_block()
2006-01-03 13:21:37 +01:00
ramfs
[PATCH] NOMMU: Provide shared-writable mmap support on ramfs
2006-01-06 08:33:32 -08:00
reiserfs
[PATCH] reiserfs: remove d_splice_alias NULL check from reiserfs_lookup
2006-01-14 18:27:12 -08:00
relayfs
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
romfs
[PATCH] fix possible PAGE_CACHE_SHIFT overflows
2006-01-08 20:13:54 -08:00
smbfs
[PATCH] smbfs: remove kmalloc wrapper
2006-01-14 18:27:13 -08:00
sysfs
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
sysv
correct email address of Manfred Spraul
2006-01-15 02:43:54 +01:00
udf
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
ufs
[PATCH] ufs cleanup
2006-01-14 10:27:32 -08:00
vfat
[PATCH] fat: remove the unneeded vfat_find() in vfat_rename()
2005-10-30 17:37:32 -08:00
xfs
Merge git://oss.sgi.com:8090/oss/git/xfs-2.6
2006-01-15 22:18:04 -08:00
aio.c
[PATCH] rcu file: use atomic primitives
2006-01-08 20:13:48 -08:00
attr.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
bad_inode.c
[PATCH] make some things static
2005-05-05 16:36:47 -07:00
binfmt_aout.c
[PATCH] dump_thread() cleanup
2006-01-10 08:01:25 -08:00
binfmt_elf_fdpic.c
[PATCH] fs/binfmt_elf: Remove unneeded kmalloc() return value casts
2006-01-10 08:02:01 -08:00
binfmt_elf.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
binfmt_em86.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
binfmt_flat.c
[PATCH] uclinux: delay binfmt_flat trace
2006-01-10 09:31:27 -08:00
binfmt_misc.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
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] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
block_dev.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
buffer.c
Make alloc_page_buffers() initialise buffer_heads using init_buffer(),
2006-01-17 09:02:07 +11:00
char_dev.c
[PATCH] convert /proc/devices to use seq_file interface
2006-01-14 18:25:19 -08:00
compat_ioctl.c
[PATCH] Implement ioctl emulation for the parport character device
2006-01-12 09:08:49 -08:00
compat.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
dcache.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
dcookies.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
direct-io.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
dnotify.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
dquot.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
drop_caches.c
[PATCH] drop-pagecache
2006-01-08 20:12:40 -08:00
eventpoll.c
[PATCH] epoll: handle timeout overflow
2005-09-28 07:46:41 -07:00
exec.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
fcntl.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
fifo.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
file_table.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
file.c
[PATCH] Fix the fdtable freeing in the case of vmalloced fdset/arrays
2005-09-14 12:38:26 -07:00
filesystems.c
[PATCH] fix missing includes
2005-10-30 17:37:32 -08:00
fs-writeback.c
[PATCH] kernel-docs: fix kernel-doc format problems
2005-11-07 07:53:55 -08:00
inode.c
[PATCH] per-mountpoint noatime/nodiratime
2006-01-10 08:01:34 -08:00
inotify.c
[PATCH] inotify: add two inotify_add_watch flags
2005-12-12 08:57:43 -08:00
ioctl.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
ioprio.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
Kconfig
[PATCH] kexec: change CONFIG_PHYSICAL_START dependency
2006-01-10 08:01:29 -08:00
Kconfig.binfmt
[PATCH] frv: suppress configuration of certain features for FRV
2006-01-08 20:13:36 -08:00
libfs.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
locks.c
[PATCH] tiny: Uninline some fslocks.c functions
2006-01-08 20:14:10 -08:00
Makefile
[PATCH] sanitize building of fs/compat_ioctl.c
2006-01-10 08:01:33 -08:00
mbcache.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
mpage.c
[PATCH] fix possible PAGE_CACHE_SHIFT overflows
2006-01-08 20:13:54 -08:00
namei.c
[PATCH] Mark some key VFS functions as __always_inline
2006-01-14 18:27:15 -08:00
namespace.c
[PATCH] add /sys/fs
2006-01-16 23:15:29 -08:00
nfsctl.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
open.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
pipe.c
[PATCH] Unlinline a bunch of other functions
2006-01-14 18:27:06 -08:00
pnode.c
[PATCH] shared mounts: cleanup
2006-01-08 20:13:56 -08:00
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] quota: make useless quota error message informative
2006-01-14 18:27:12 -08:00
quota.c
[PATCH] capable/capability.h (fs/)
2006-01-11 18:42:13 -08:00
read_write.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
readdir.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
2006-01-09 15:59:24 -08:00
select.c
[PATCH] files: lock-free fd look-up
2005-09-09 13:57:55 -07:00
seq_file.c
[PATCH] allow callers of seq_open do allocation themselves
2005-11-07 18:18:09 -08:00
stat.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
super.c
[PATCH] mutex subsystem, semaphore to mutex: VFS, sb->s_lock
2006-01-09 15:59:25 -08:00
xattr_acl.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
xattr.c
[PATCH] move xattr permission checks into the VFS
2006-01-10 08:01:29 -08:00