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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>		17 years ago
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9p	9p: use copy of the options value instead of original	17 years ago
adfs	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
affs	fs: mark nibblemap const	18 years ago
afs	fs/afs/vlocation.c: fix off-by-one	17 years ago
autofs	Use task_pid_nr() instead of pid_nr(task_pid())	18 years ago
autofs4	pid namespaces: round up the API	18 years ago
befs	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
bfs	regression: bfs endianness bug	17 years ago
cifs	regression: cifs endianness bug	17 years ago
coda	pid namespaces: round up the API	18 years ago
configfs	r/o bind mounts: filesystem helpers for custom 'struct file's	18 years ago
cramfs	fs/cramfs/inode.c: replace hardcoded value with preprocessor constant	18 years ago
debugfs	[PATCH] pass dentry to audit_inode()/audit_inode_child()	18 years ago
devpts	…
dlm	[DLM] lowcomms: Do not muck with sysctl_rmem_max.	17 years ago
ecryptfs	eCryptfs: cast page->index to loff_t instead of off_t	17 years ago
efs	exportfs: make struct export_operations const	18 years ago
exportfs	exportfs: update documentation	18 years ago
ext2	fix up ext2_fs.h for userspace after reservations backport	17 years ago
ext3	Fix 64KB blocksize in ext3 directories	17 years ago
ext4	Forbid user to change file flags on quota files	17 years ago
fat	exportfs: make struct export_operations const	18 years ago
freevxfs	…
fuse	fuse: fix attribute caching after rename	17 years ago
gfs2	exportfs: make struct export_operations const	18 years ago
hfs	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
hfsplus	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
hostfs	uml: fix hostfs style	18 years ago
hpfs	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
hppfs	…
hugetlbfs	hugetlb: allow bulk updating in hugetlb_*_quota()	17 years ago
isofs	exportfs: make struct export_operations const	18 years ago
jbd	jbd: Fix assertion failure in fs/jbd/checkpoint.c	17 years ago
jbd2	JBD2: debug code cleanup.	18 years ago
jffs2	Freezer: Fix JFFS2 garbage collector freezing issue (rev. 2)	17 years ago
jfs	Forbid user to change file flags on quota files	17 years ago
lockd	NFS/SUNRPC: use transport protocol naming	18 years ago
minix	limit minixfs printks on corrupted dir i_size	18 years ago
msdos	…
ncpfs	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
nfs	NFS: Clean up new multi-segment direct I/O changes	17 years ago
nfs_common	…
nfsd	nfsd4: recheck for secure ports in fh_verify	17 years ago
nls	sparse pointer use of zero as null	18 years ago
ntfs	NTFS: Fix read regression.	18 years ago
ocfs2	remove nonsense force-casts from ocfs2	17 years ago
openpromfs	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
partitions	fs/partitions/sun.c endianness annotations	18 years ago
proc	proc: remove/Fix proc generic d_revalidate	17 years ago
qnx4	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
ramfs	Remove valueless definition of hard-selected RAMFS option	18 years ago
reiserfs	proc: fix proc_dir_entry refcounting	17 years ago
romfs	fs/romfs/inode.c: trivial improvements	18 years ago
smbfs	smbfs: fix debug builds	17 years ago
sysfs	sysfs: fix off-by-one error in fill_read_buffer()	17 years ago
sysv	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
udf	fs/udf/balloc.c: mark a variable as uninitialized_var()	18 years ago
ufs	ufs: fix nexstep dir block size	17 years ago
vfat	…
xfs	Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6	17 years ago
Kconfig	[PATCH] ocfs2: Remove expensive bitmap scanning	17 years ago
Kconfig.binfmt	…
Makefile	Remove valueless definition of hard-selected RAMFS option	18 years ago
aio.c	aio: only account I/O wait time in read_events if there are active requests	17 years ago
anon_inodes.c	anon-inodes use open coded atomic_inc for the shared inode	18 years ago
attr.c	VFS: make notify_change pass ATTR_KILL_S*ID to setattr operations	18 years ago
bad_inode.c	…
binfmt_aout.c	core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe	18 years ago
binfmt_elf.c	pid namespaces: changes to show virtual ids to user	18 years ago
binfmt_elf_fdpic.c	pid namespaces: changes to show virtual ids to user	18 years ago
binfmt_em86.c	Convert files to UTF-8 and some cleanups	18 years ago
binfmt_flat.c	binfmt_flat: warning fixes	18 years ago
binfmt_misc.c	Convert files to UTF-8 and some cleanups	18 years ago
binfmt_script.c	Convert files to UTF-8 and some cleanups	18 years ago
binfmt_som.c	core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe	18 years ago
bio.c	bio: make freeing of ->bi_io_vec conditional in bio_free()	18 years ago
block_dev.c	Slab API: remove useless ctor parameter and reorder parameters	18 years ago
buffer.c	nobh: nobh_write_end fix	18 years ago
char_dev.c	mm: bdi init hooks	18 years ago
compat.c	…
compat_ioctl.c	tty: add the new termios2 ioctls to the compatible list.	17 years ago
dcache.c	dcache: don't expose uninitialized memory in /proc/<pid>/fd/<fd>	18 years ago
dcookies.c	Remove fs.h from mm.h	18 years ago
direct-io.c	remove ZERO_PAGE	18 years ago
dnotify.c	…
dquot.c	quota: send messages via netlink	18 years ago
drop_caches.c	…
eventfd.c	…
eventpoll.c	fs/eventpoll.c: use list_for_each_entry() instead of list_for_each()	18 years ago
exec.c	vfs: coredumping fix	17 years ago
fcntl.c	pid namespaces: changes to show virtual ids to user	18 years ago
fifo.c	…
file.c	…
file_table.c	fs/file_table.c: use list_for_each_entry() instead of list_for_each()	18 years ago
filesystems.c	…
fs-writeback.c	Use helpers to obtain task pid in printks	18 years ago
generic_acl.c	…
inode.c	introduce I_SYNC	18 years ago
inotify.c	[PATCH] new helper - inotify_evict_watch()	18 years ago
inotify_user.c	change inotifyfs magic as the same magic is used for futexfs	18 years ago
internal.h	…
ioctl.c	…
ioprio.c	ioprio: allow sys_ioprio_set() value of 0 to reset ioprio setting	17 years ago
libfs.c	exportfs: add new methods	18 years ago
locks.c	locks: fix possible infinite loop in posix deadlock detection	18 years ago
mbcache.c	fs: Fix to correct the mbcache entries counter	18 years ago
mpage.c	mm: buffered write cleanup	18 years ago
namei.c	[PATCH] pass dentry to audit_inode()/audit_inode_child()	18 years ago
namespace.c	[PATCH] new helpers - collect_mounts() and release_collected_mounts()	18 years ago
nfsctl.c	…
no-block.c	…
open.c	mark sys_open/sys_read exports unused	17 years ago
pipe.c	sched: affine sync wakeups	18 years ago
pnode.c	…
pnode.h	[PATCH] new helpers - collect_mounts() and release_collected_mounts()	18 years ago
posix_acl.c	…
quota.c	[IA64] Fix build failure in fs/quota.c	18 years ago
quota_v1.c	…
quota_v2.c	…
read_write.c	mark sys_open/sys_read exports unused	17 years ago
read_write.h	…
readdir.c	…
select.c	fs/select, remove unused macros	18 years ago
seq_file.c	[FS] seq_file: Introduce the seq_open_private()	18 years ago
signalfd.c	rename signalfd_siginfo fields	18 years ago
splice.c	Implement file posix capabilities	18 years ago
stack.c	…
stat.c	…
super.c	Convert files to UTF-8 and some cleanups	18 years ago
sync.c	…
timerfd.c	make timerfd return a u64 and fix the __put_user	18 years ago
utimes.c	VFS: check nanoseconds in utimensat	18 years ago
xattr.c	[PATCH] pass dentry to audit_inode()/audit_inode_child()	18 years ago
xattr_acl.c	…