Eric W. Biederman 3790ee4bd8 proc: remove/Fix proc generic d_revalidate ... Ultimately to implement /proc perfectly we need an implementation of d_revalidate because files and directories can be removed behind the back of the VFS, and d_revalidate is the only way we can let the VFS know that this has happened. Unfortunately the linux VFS can not cope with anything in the path to a mount point going away. So a proper d_revalidate method that calls d_drop also needs to call have_submounts which is moderately expensive, so you really don't want a d_revalidate method that unconditionally calls it, but instead only calls it when the backing object has really gone away. proc generic entries only disappear on module_unload (when not counting the fledgling network namespace) so it is quite rare that we actually encounter that case and has not actually caused us real world trouble yet. So until we get a proper test for keeping dentries in the dcache fix the current d_revalidate method by completely removing it. This returns us to the current status quo. So with CONFIG_NETNS=n things should look as they have always looked. For CONFIG_NETNS=y things work most of the time but there are a few rare corner cases that don't behave properly. As the network namespace is barely present in 2.6.24 this should not be a problem. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "Denis V. Lunev" <den@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-12-10 19:43:55 -08:00
..
9p	9p: use copy of the options value instead of original	2007-11-06 08:02:53 -06:00
adfs	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
affs	fs: mark nibblemap const	2007-10-17 08:42:47 -07:00
afs	fs/afs/vlocation.c: fix off-by-one	2007-11-05 15:12:32 -08:00
autofs	Use task_pid_nr() instead of pid_nr(task_pid())	2007-10-19 11:53:43 -07:00
autofs4	pid namespaces: round up the API	2007-10-19 11:53:37 -07:00
befs	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
bfs	regression: bfs endianness bug	2007-12-05 09:25:20 -08:00
cifs	regression: cifs endianness bug	2007-12-05 09:25:19 -08:00
coda	pid namespaces: round up the API	2007-10-19 11:53:37 -07:00
configfs	r/o bind mounts: filesystem helpers for custom 'struct file's	2007-10-17 08:43:04 -07:00
cramfs	fs/cramfs/inode.c: replace hardcoded value with preprocessor constant	2007-10-18 14:37:29 -07:00
debugfs	[PATCH] pass dentry to audit_inode()/audit_inode_child()	2007-10-21 02:37:18 -04:00
devpts	devpts: add fsnotify create event	2007-05-08 11:14:59 -07:00
dlm	[DLM] lowcomms: Do not muck with sysctl_rmem_max.	2007-11-07 04:11:42 -08:00
ecryptfs	eCryptfs: cast page->index to loff_t instead of off_t	2007-11-14 18:45:36 -08:00
efs	exportfs: make struct export_operations const	2007-10-22 08:13:21 -07:00
exportfs	exportfs: update documentation	2007-10-22 08:13:21 -07:00
ext2	fix up ext2_fs.h for userspace after reservations backport	2007-11-29 09:24:53 -08:00
ext3	Fix 64KB blocksize in ext3 directories	2007-11-14 18:45:43 -08:00
ext4	Forbid user to change file flags on quota files	2007-11-14 18:45:38 -08:00
fat	exportfs: make struct export_operations const	2007-10-22 08:13:21 -07:00
freevxfs	mm: Remove slab destructors from kmem_cache_create().	2007-07-20 10:11:58 +09:00
fuse	fuse: fix attribute caching after rename	2007-11-29 09:24:54 -08:00
gfs2	exportfs: make struct export_operations const	2007-10-22 08:13:21 -07:00
hfs	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
hfsplus	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
hostfs	uml: fix hostfs style	2007-10-16 09:43:07 -07:00
hpfs	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
hppfs	[PATCH] Mark struct super_operations const	2007-02-12 09:48:47 -08:00
hugetlbfs	hugetlb: allow bulk updating in hugetlb_*_quota()	2007-11-14 18:45:40 -08:00
isofs	exportfs: make struct export_operations const	2007-10-22 08:13:21 -07:00
jbd	jbd: Fix assertion failure in fs/jbd/checkpoint.c	2007-12-05 09:21:20 -08:00
jbd2	JBD2: debug code cleanup.	2007-10-17 18:49:59 -04:00
jffs2	Freezer: Fix JFFS2 garbage collector freezing issue (rev. 2)	2007-12-04 01:35:41 -05:00
jfs	Forbid user to change file flags on quota files	2007-11-14 18:45:38 -08:00
lockd	NFS/SUNRPC: use transport protocol naming	2007-10-09 17:17:53 -04:00
minix	limit minixfs printks on corrupted dir i_size	2007-10-17 08:42:53 -07:00
msdos	[PATCH] mark struct inode_operations const 2	2007-02-12 09:48:46 -08:00
ncpfs	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
nfs	NFS: Clean up new multi-segment direct I/O changes	2007-11-26 16:32:40 -05:00
nfs_common
nfsd	nfsd4: recheck for secure ports in fh_verify	2007-11-12 14:28:08 -08:00
nls	sparse pointer use of zero as null	2007-10-18 14:37:31 -07:00
ntfs	NTFS: Fix read regression.	2007-11-03 12:27:21 -07:00
ocfs2	remove nonsense force-casts from ocfs2	2007-12-05 09:25:20 -08:00
openpromfs	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
partitions	fs/partitions/sun.c endianness annotations	2007-10-14 12:41:51 -07:00
proc	proc: remove/Fix proc generic d_revalidate	2007-12-10 19:43:55 -08:00
qnx4	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
ramfs	Remove valueless definition of hard-selected RAMFS option	2007-10-17 08:42:56 -07:00
reiserfs	proc: fix proc_dir_entry refcounting	2007-12-05 09:21:20 -08:00
romfs	fs/romfs/inode.c: trivial improvements	2007-10-17 08:42:47 -07:00
smbfs	smbfs: fix debug builds	2007-11-14 18:45:43 -08:00
sysfs	sysfs: fix off-by-one error in fill_read_buffer()	2007-11-28 13:53:53 -08:00
sysv	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
udf	fs/udf/balloc.c: mark a variable as uninitialized_var()	2007-10-17 08:43:00 -07:00
ufs	ufs: fix nexstep dir block size	2007-12-05 09:21:18 -08:00
vfat	[PATCH] mark struct inode_operations const 3	2007-02-12 09:48:46 -08:00
xfs	Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6	2007-12-10 10:18:27 -08:00
aio.c	aio: only account I/O wait time in read_events if there are active requests	2007-12-05 09:21:18 -08:00
anon_inodes.c	anon-inodes use open coded atomic_inc for the shared inode	2007-10-17 08:43:00 -07:00
attr.c	VFS: make notify_change pass ATTR_KILL_S*ID to setattr operations	2007-10-18 14:37:22 -07:00
bad_inode.c	sendfile: remove bad_sendfile() from bad_file_ops	2007-07-10 08:04:15 +02:00
binfmt_aout.c	core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe	2007-10-17 08:42:50 -07:00
binfmt_elf_fdpic.c	pid namespaces: changes to show virtual ids to user	2007-10-19 11:53:40 -07:00
binfmt_elf.c	pid namespaces: changes to show virtual ids to user	2007-10-19 11:53:40 -07:00
binfmt_em86.c	Convert files to UTF-8 and some cleanups	2007-10-19 23:21:04 +02:00
binfmt_flat.c	binfmt_flat: warning fixes	2007-10-17 08:42:54 -07:00
binfmt_misc.c	Convert files to UTF-8 and some cleanups	2007-10-19 23:21:04 +02:00
binfmt_script.c	Convert files to UTF-8 and some cleanups	2007-10-19 23:21:04 +02:00
binfmt_som.c	core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe	2007-10-17 08:42:50 -07:00
bio.c	bio: make freeing of ->bi_io_vec conditional in bio_free()	2007-10-16 11:03:52 +02:00
block_dev.c	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
buffer.c	nobh: nobh_write_end fix	2007-10-21 08:54:05 -07:00
char_dev.c	mm: bdi init hooks	2007-10-17 08:42:45 -07:00
compat_ioctl.c	tty: add the new termios2 ioctls to the compatible list.	2007-11-29 09:24:55 -08:00
compat.c	mm: variable length argument support	2007-07-19 10:04:45 -07:00
dcache.c	dcache: don't expose uninitialized memory in /proc/<pid>/fd/<fd>	2007-10-22 08:13:18 -07:00
dcookies.c	Remove fs.h from mm.h	2007-07-29 17:09:29 -07:00
direct-io.c	remove ZERO_PAGE	2007-10-16 09:42:53 -07:00
dnotify.c	mm: Remove slab destructors from kmem_cache_create().	2007-07-20 10:11:58 +09:00
dquot.c	quota: send messages via netlink	2007-10-17 08:42:56 -07:00
drop_caches.c	invalidate_mapping_pages(): add cond_resched	2007-07-16 09:05:36 -07:00
eventfd.c	eventfd use waitqueue lock ...	2007-05-18 13:09:34 -07:00
eventpoll.c	fs/eventpoll.c: use list_for_each_entry() instead of list_for_each()	2007-10-19 11:53:38 -07:00
exec.c	vfs: coredumping fix	2007-11-28 10:58:01 -08:00
fcntl.c	pid namespaces: changes to show virtual ids to user	2007-10-19 11:53:40 -07:00
fifo.c	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
file_table.c	fs/file_table.c: use list_for_each_entry() instead of list_for_each()	2007-10-19 11:53:38 -07:00
file.c	[PATCH] fdtable: Provide free_fdtable() wrapper	2006-12-22 08:55:50 -08:00
filesystems.c	add filesystem subtype support	2007-05-08 11:15:01 -07:00
fs-writeback.c	Use helpers to obtain task pid in printks	2007-10-19 11:53:43 -07:00
generic_acl.c	Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check	2007-07-17 12:00:03 -07:00
inode.c	introduce I_SYNC	2007-10-17 08:43:02 -07:00
inotify_user.c	change inotifyfs magic as the same magic is used for futexfs	2007-10-17 08:43:00 -07:00
inotify.c	[PATCH] new helper - inotify_evict_watch()	2007-10-21 02:37:38 -04:00
internal.h	cleanup compat ioctl handling	2007-05-08 11:15:09 -07:00
ioctl.c	drop obsolete sys_ioctl export	2007-07-16 09:05:48 -07:00
ioprio.c	ioprio: allow sys_ioprio_set() value of 0 to reset ioprio setting	2007-11-07 13:54:07 +01:00
Kconfig	[PATCH] ocfs2: Remove expensive bitmap scanning	2007-11-27 16:47:02 -08:00
Kconfig.binfmt	fs: Kill sh dependency for binfmt_flat.	2007-05-21 14:34:00 +09:00
libfs.c	exportfs: add new methods	2007-10-22 08:13:19 -07:00
locks.c	locks: fix possible infinite loop in posix deadlock detection	2007-10-30 09:04:18 -07:00
Makefile	Remove valueless definition of hard-selected RAMFS option	2007-10-17 08:42:56 -07:00
mbcache.c	fs: Fix to correct the mbcache entries counter	2007-10-25 15:18:29 -07:00
mpage.c	mm: buffered write cleanup	2007-10-16 09:42:54 -07:00
namei.c	[PATCH] pass dentry to audit_inode()/audit_inode_child()	2007-10-21 02:37:18 -04:00
namespace.c	[PATCH] new helpers - collect_mounts() and release_collected_mounts()	2007-10-21 02:37:25 -04:00
nfsctl.c	nfsctl: use vfs_path_lookup	2007-07-19 10:04:45 -07:00
no-block.c
open.c	mark sys_open/sys_read exports unused	2007-11-14 18:45:42 -08:00
pipe.c	sched: affine sync wakeups	2007-10-15 17:00:19 +02:00
pnode.c	Introduce a handy list_first_entry macro	2007-05-08 11:15:11 -07:00
pnode.h	[PATCH] new helpers - collect_mounts() and release_collected_mounts()	2007-10-21 02:37:25 -04:00
posix_acl.c
quota_v1.c
quota_v2.c
quota.c	[IA64] Fix build failure in fs/quota.c	2007-07-27 15:40:13 -07:00
read_write.c	mark sys_open/sys_read exports unused	2007-11-14 18:45:42 -08:00
read_write.h
readdir.c	ROUND_UP macro cleanup in fs/(select|compat|readdir).c	2007-05-08 11:15:09 -07:00
select.c	fs/select, remove unused macros	2007-10-19 11:53:41 -07:00
seq_file.c	[FS] seq_file: Introduce the seq_open_private()	2007-10-10 16:55:33 -07:00
signalfd.c	rename signalfd_siginfo fields	2007-10-17 08:43:01 -07:00
splice.c	Implement file posix capabilities	2007-10-17 08:43:07 -07:00
stack.c	[PATCH] fs/stack.c: Copy i_nlink after all other attributes are copied	2007-02-19 14:21:50 -08:00
stat.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
super.c	Convert files to UTF-8 and some cleanups	2007-10-19 23:21:04 +02:00
sync.c	Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM	2007-06-28 11:38:30 -07:00
timerfd.c	make timerfd return a u64 and fix the __put_user	2007-07-26 11:35:17 -07:00
utimes.c	VFS: check nanoseconds in utimensat	2007-10-17 08:42:52 -07:00
xattr_acl.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
xattr.c	[PATCH] pass dentry to audit_inode()/audit_inode_child()	2007-10-21 02:37:18 -04:00