AcoSail/kernel_optimize_test
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f50b6f8691
kernel_optimize_test/fs
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Ian Kent f50b6f8691 [PATCH] autofs4: fix another race between mount and expire 
Jeff Moyer has identified a race between mount and expire.

What happens is that during an expire the situation can arise that a directory
is removed and another lookup is done before the expire issues a completion
status to the kernel module.  In this case, since the the lookup gets a new
dentry, it doesn't know that there is an expire in progress and when it posts
its mount request, matches the existing expire request and waits for its
completion.  ENOENT is then returned to user space from lookup (as the dentry
passed in is now unhashed) without having performed the mount request.

The solution used here is to keep track of dentrys in this unhashed state and
reuse them, if possible, in order to preserve the flags.  Additionally, this
infrastructure will provide the framework for the reintroduction of caching of
mount fails removed earlier in development.

Signed-off-by: Ian Kent <raven@themaw.net>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-20 17:10:15 -08:00
..
9p 9p: implement optional loose read cache 2007-02-18 10:16:10 -06:00
adfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
affs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
afs [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
autofs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
autofs4 [PATCH] autofs4: fix another race between mount and expire 2007-02-20 17:10:15 -08:00
befs [PATCH] mark struct inode_operations const 1 2007-02-12 09:48:46 -08:00
bfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
cifs Storage class should be before const qualifier 2007-02-17 20:11:19 +01:00
coda [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
configfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
cramfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
debugfs debugfs: Remove misleading comments. 2007-02-16 15:19:17 -08:00
devpts [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
dlm [PATCH] mark struct file_operations const 6 2007-02-12 09:48:45 -08:00
ecryptfs [PATCH] ecryptfs: fix forgotten format specifier 2007-02-16 08:14:01 -08:00
efs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
exportfs [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
ext2 [PATCH] ext[234]: update documentation 2007-02-20 17:10:14 -08:00
ext3 [PATCH] ext[234]: update documentation 2007-02-20 17:10:14 -08:00
ext4 [PATCH] ext[234]: update documentation 2007-02-20 17:10:14 -08:00
fat [PATCH] FAT: DIO-write fallback to normal buffered 2007-02-20 17:10:14 -08:00
freevxfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
fuse [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
gfs2 [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
hfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
hfsplus [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
hostfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
hpfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
hppfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
hugetlbfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
isofs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
jbd [PATCH] jbd: wait for already submitted t_sync_datalist buffer to complete 2006-12-22 08:55:51 -08:00
jbd2 [PATCH] jbd2: wait for already submitted t_sync_datalist buffer to complete 2006-12-07 08:39:42 -08:00
jffs2 Merge git://git.infradead.org/mtd-2.6 2007-02-19 13:34:11 -08:00
jfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
lockd Replace remaining references to "driverfs" with "sysfs". 2007-02-17 19:13:42 +01:00
minix [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
msdos [PATCH] mark struct inode_operations const 2 2007-02-12 09:48:46 -08:00
ncpfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
nfs [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
nfs_common [PATCH] nfs_common endianness annotations 2006-10-20 10:26:41 -07:00
nfsd [PATCH] Fix a free-wrong-pointer bug in nfs/acl server. 2007-02-19 16:13:28 -08:00
nls [PATCH] fs: make nls_cp936.c handle some U00XY characters and U20AC correctly 2006-12-07 08:39:46 -08:00
ntfs [PATCH] sysctl: remove the proc_dir_entry member for the sysctl tables 2007-02-14 08:10:00 -08:00
ocfs2 Fix typos concerning hierarchy 2007-02-17 19:23:03 +01:00
openpromfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
partitions Driver: remove redundant kobject_unregister checks 2007-02-16 15:19:17 -08:00
proc [PATCH] sysctl: hide the sysctl proc inodes from selinux 2007-02-14 08:10:00 -08:00
qnx4 [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
ramfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
reiserfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
romfs [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
smbfs [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
sysfs PCI/sysfs/kobject kernel-doc fixes 2007-02-16 15:30:10 -08:00
sysv [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
udf [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
ufs [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
vfat [PATCH] mark struct inode_operations const 3 2007-02-12 09:48:46 -08:00
xfs [PATCH] xfs warning fix 2007-02-20 17:10:13 -08:00
aio.c [PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc(). 2007-02-11 10:51:27 -08:00
attr.c
bad_inode.c [PATCH] mark struct inode_operations const 1 2007-02-12 09:48:46 -08:00
binfmt_aout.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
binfmt_elf_fdpic.c [PATCH] Remove final references to deprecated "MAP_ANON" page protection flag 2007-02-11 10:51:17 -08:00
binfmt_elf.c [PATCH] x86: Don't require the vDSO for handling a.out signals 2007-02-13 13:26:26 +01:00
binfmt_em86.c
binfmt_flat.c [PATCH] uclinux: correctly remap bin_fmtflat exe allocated mem regions 2007-02-09 10:45:33 -08:00
binfmt_misc.c [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
binfmt_script.c
binfmt_som.c [PARISC] Fix fs/binfmt_som.c 2006-10-04 06:51:26 -06:00
bio.c [PATCH] optimize o_direct on block devices 2006-12-13 09:05:50 -08:00
block_dev.c [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
buffer.c [PATCH] fs: fix nobh data leak 2007-02-20 17:10:15 -08:00
char_dev.c [PATCH] rework reserved major handling 2007-02-20 17:10:13 -08:00
compat_ioctl.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
compat.c [PATCH] fdtable: Make fdarray and fdsets equal in size 2006-12-10 09:57:22 -08:00
dcache.c Revert "[PATCH] Fix d_path for lazy unmounts" 2007-02-13 12:08:18 -08:00
dcookies.c [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
direct-io.c [PATCH] dio: lock refcount operations 2006-12-10 09:57:21 -08:00
dnotify.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
dquot.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
drop_caches.c [PATCH] remove invalidate_inode_pages() 2007-02-11 10:51:31 -08:00
eventpoll.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
exec.c [PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc(). 2007-02-11 10:51:27 -08:00
fcntl.c [PATCH] fdtable: Make fdarray and fdsets equal in size 2006-12-10 09:57:22 -08:00
fifo.c
file_table.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
file.c [PATCH] fdtable: Provide free_fdtable() wrapper 2006-12-22 08:55:50 -08:00
filesystems.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
fs-writeback.c Write back inode data pages even when the inode itself is locked 2007-01-26 12:53:20 -08:00
generic_acl.c
inode.c [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
inotify_user.c [PATCH] inotify: read return val fix 2007-02-12 09:48:28 -08:00
inotify.c [PATCH] severing fs.h, radix-tree.h -> sched.h 2006-12-04 02:00:24 -05:00
internal.h
ioctl.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
ioprio.c [PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task 2007-02-12 09:48:32 -08:00
Kconfig Remove JFFS (version 1), as scheduled. 2007-02-17 16:10:59 -05:00
Kconfig.binfmt
libfs.c [PATCH] fs: fix libfs data leak 2007-02-20 17:10:15 -08:00
locks.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
Makefile Remove JFFS (version 1), as scheduled. 2007-02-17 16:10:59 -05:00
mbcache.c [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
mpage.c
namei.c [PATCH] __page_symlink retry loop error code fix 2007-02-16 08:13:56 -08:00
namespace.c [PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc(). 2007-02-11 10:51:27 -08:00
nfsctl.c
no-block.c
open.c [PATCH] fdtable: Make fdarray and fdsets equal in size 2006-12-10 09:57:22 -08:00
pipe.c [PATCH] AUDIT_FD_PAIR 2007-02-17 21:30:15 -05:00
pnode.c [PATCH] rename struct namespace to struct mnt_namespace 2006-12-08 08:28:51 -08:00
pnode.h [PATCH] rename struct namespace to struct mnt_namespace 2006-12-08 08:28:51 -08:00
posix_acl.c
quota_v1.c
quota_v2.c
quota.c
read_write.c [PATCH] FS: speed up rw_verify_area() 2007-02-12 09:48:29 -08:00
read_write.h
readdir.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
select.c [PATCH] fdtable: Make fdarray and fdsets equal in size 2006-12-10 09:57:22 -08:00
seq_file.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
splice.c [PATCH] constify pipe_buf_operations 2006-12-13 09:05:47 -08:00
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 [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
super.c [PATCH] Mark struct super_operations const 2007-02-12 09:48:47 -08:00
sync.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
utimes.c [PATCH] severing fs.h, radix-tree.h -> sched.h 2006-12-04 02:00:24 -05:00
xattr_acl.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
xattr.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00