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Trond Myklebust e89a5a43b9 NFS: Fix the mount regression 
This avoids the recent NFS mount regression (returning EBUSY when
mounting the same filesystem twice with different parameters).

The best I can do given the constraints appears to be to have the kernel
first look for a superblock that matches both the fsid and the
user-specified mount options, and then spawn off a new superblock if
that search fails.

Note that this is not the same as specifying nosharecache everywhere
since nosharecache will never attempt to match an existing superblock.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Tested-by: Hua Zhong <hzhong@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-31 20:26:45 -07:00
..
9p
9p: remove deprecated v9fs_fid_lookup_remove()
2007-08-23 10:13:45 -05:00
adfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
affs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
afs
AFS: fix file locking
2007-07-31 15:39:40 -07:00
autofs
Replace pid_t in autofs with struct pid reference
2007-05-11 08:29:36 -07:00
autofs4
autofs4: deadlock during create
2007-08-22 19:52:46 -07:00
befs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
bfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
cifs
[CIFS] Check return code on failed alloc
2007-08-18 00:15:20 +00:00
coda
coda: remove CODA_STORE/CODA_RELEASE upcalls
2007-07-21 17:49:14 -07:00
configfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
cramfs
mm: make read_cache_page synchronous
2007-05-07 12:12:51 -07:00
debugfs
debugfs: remove rmdir() non-empty complaint
2007-07-18 15:49:48 -07:00
devpts
devpts: add fsnotify create event
2007-05-08 11:14:59 -07:00
dlm
[DLM] fix basts for granted PR waiting CW
2007-08-14 10:31:02 +01:00
ecryptfs
eCryptfs: fix possible fault in ecryptfs_sync_page
2007-08-31 01:42:23 -07:00
efs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
exportfs
knfsd: exportfs: split out reconnecting a dentry from find_exported_dentry
2007-07-17 10:23:06 -07:00
ext2
fix inode_table test in ext234_check_descriptors
2007-07-26 11:35:17 -07:00
ext3
fix inode_table test in ext234_check_descriptors
2007-07-26 11:35:17 -07:00
ext4
"ext4_ext_put_in_cache" uses __u32 to receive physical block number
2007-07-31 15:39:37 -07:00
fat
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
freevxfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
fuse
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
gfs2
[GFS2] Revert remounting w/o acl option leaves acls enabled
2007-08-14 10:34:40 +01:00
hfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
hfsplus
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
hostfs
sendfile: remove .sendfile from filesystems that use generic_file_sendfile()
2007-07-10 08:04:13 +02:00
hpfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
hppfs
[PATCH] Mark struct super_operations const
2007-02-12 09:48:47 -08:00
hugetlbfs
hugepage: fix broken check for offset alignment in hugepage mappings
2007-08-31 01:42:23 -07:00
isofs
isofs: mounting to regular file may succeed
2007-07-31 15:39:41 -07:00
jbd
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
jbd2
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
jffs2
JFFS2 locking regression fix.
2007-08-20 22:44:27 -07:00
jfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
lockd
lockd and nfsd endianness annotation fixes
2007-07-26 11:11:56 -07:00
minix
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
msdos
[PATCH] mark struct inode_operations const 2
2007-02-12 09:48:46 -08:00
ncpfs
NCP: delete test of long-deceased CONFIG_NCPFS_DEBUGDENTRY
2007-07-31 15:39:41 -07:00
nfs
NFS: Fix the mount regression
2007-08-31 20:26:45 -07:00
nfs_common
…
nfsd
knfsd: eliminate unnecessary -ENOENT returns on export downcalls
2007-07-31 15:39:38 -07:00
nls
NLS: Remove obsolete Makefile entries
2007-07-16 09:05:52 -07:00
ntfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
ocfs2
ocfs2: set non-default s_time_gran during mount
2007-08-09 17:27:58 -07:00
openpromfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
partitions
[PARTITION]: Sun/Solaris VTOC table corrections
2007-07-30 00:27:31 -07:00
proc
sched: accounting regression since rc1
2007-08-23 15:18:02 +02:00
qnx4
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
ramfs
NOMMU: Fix SYSV IPC SHM
2007-07-31 15:39:36 -07:00
reiserfs
more reiserfs endianness annotations
2007-07-26 11:11:58 -07:00
romfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
smbfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
sysfs
sysfs: don't warn on removal of a nonexistent binary file
2007-08-22 14:35:36 -07:00
sysv
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
udf
Fix possible NULL pointer dereference in udf_table_free_blocks()
2007-08-31 01:42:22 -07:00
ufs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
vfat
[PATCH] mark struct inode_operations const 3
2007-02-12 09:48:46 -08:00
xfs
xfs ioctl __user annotations
2007-07-26 11:11:57 -07:00
aio.c
signal/timer/event: KAIO eventfd support example
2007-05-11 08:29:37 -07:00
anon_inodes.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
2007-07-17 11:50:26 -07:00
attr.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00
bad_inode.c
sendfile: remove bad_sendfile() from bad_file_ops
2007-07-10 08:04:15 +02:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
coredump masking: ELF-FDPIC: enable core dump filtering
2007-07-19 10:04:47 -07:00
binfmt_elf.c
revert "PIE randomization"
2007-07-21 17:49:14 -07:00
binfmt_em86.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
binfmt_flat.c
nommu: report correct errno in message
2007-06-08 17:23:32 -07:00
binfmt_misc.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
binfmt_script.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
binfmt_som.c
…
bio.c
[BLOCK] Get rid of request_queue_t typedef
2007-07-24 09:28:11 +02:00
block_dev.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
buffer.c
fix some conversion overflows
2007-07-20 08:44:19 -07:00
char_dev.c
unregister_chrdev() return void
2007-07-19 10:04:43 -07:00
compat_ioctl.c
[PATCH] remove duplicated ioctl entries in compat_ioctl.c
2007-08-06 15:06:03 -04:00
compat.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
dcache.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
dcookies.c
Remove fs.h from mm.h
2007-07-29 17:09:29 -07:00
direct-io.c
dio: zero struct dio with kzalloc instead of manually
2007-08-20 22:50:25 -07:00
dnotify.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
dquot.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
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
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
exec.c
exec: kill unsafe BUG_ON(sig->count) checks
2007-08-22 19:52:47 -07:00
fcntl.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
fifo.c
Detach sched.h from mm.h
2007-05-21 09:18:19 -07:00
file_table.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
file.c
…
filesystems.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
fs-writeback.c
…
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
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
inotify_user.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
inotify.c
Introduce a handy list_first_entry macro
2007-05-08 11:15:11 -07:00
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
[PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task
2007-02-12 09:48:32 -08:00
Kconfig
NFSD/SUNRPC: Fix the automatic selection of RPCSEC_GSS
2007-07-19 15:09:02 -04:00
Kconfig.binfmt
fs: Kill sh dependency for binfmt_flat.
2007-05-21 14:34:00 +09:00
libfs.c
fs/libfs.c: >80 columns line break fix
2007-05-09 06:44:57 +02:00
locks.c
rename setlease to generic_setlease
2007-07-31 15:39:43 -07:00
Makefile
signal/timer/event: eventfd core
2007-05-11 08:29:36 -07:00
mbcache.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
mpage.c
consolidate generic_writepages and mpage_writepages
2007-05-11 08:29:35 -07:00
namei.c
fs: remove path_walk export
2007-07-19 10:04:45 -07:00
namespace.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
nfsctl.c
nfsctl: use vfs_path_lookup
2007-07-19 10:04:45 -07:00
no-block.c
…
open.c
VFS: fix a race in lease-breaking during truncate
2007-07-31 15:39:42 -07:00
pipe.c
docbook: add pipes, other fixes
2007-07-27 08:08:51 +02:00
pnode.c
Introduce a handy list_first_entry macro
2007-05-08 11:15:11 -07:00
pnode.h
…
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
Remove remnants of sendfile()
2007-07-10 08:04:15 +02:00
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
Style fix in fs/select.c
2007-05-09 07:10:02 +02:00
seq_file.c
seq_file: more atomicity in traverse()
2007-07-16 09:05:45 -07:00
signalfd.c
signalfd: make it group-wide, fix posix-timers scheduling
2007-08-22 19:52:46 -07:00
splice.c
docbook: add pipes, other fixes
2007-07-27 08:08:51 +02:00
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
hugetlbfs: handle empty options string
2007-07-16 09:05:46 -07:00
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
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00
xattr_acl.c
[PATCH] remove many unneeded #includes of sched.h
2007-02-14 08:09:54 -08:00
xattr.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00