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Trond Myklebust dc9d8d0481 NLM/lockd: convert __nlm_async_call to use rpc_run_task() 
Peter Staubach comments:

> In the course of investigating testing failures in the locking phase of
> the Connectathon testsuite, I discovered a couple of things.  One was
> that one of the tests in the locking tests was racy when it didn't seem
> to need to be and two, that the NFS client asynchronously releases locks
> when a process is exiting.
...
> The Single UNIX Specification Version 3 specifies that:  "All locks
> associated with a file for a given process shall be removed when a file
> descriptor for that file is closed by that process or the process holding
> that file descriptor terminates.".
>
> This does not specify whether those locks must be released prior to the
> completion of the exit processing for the process or not.  However,
> general assumptions seem to be that those locks will be released.  This
> leads to more deterministic behavior under normal circumstances.

The following patch converts the NFSv2/v3 locking code to use the same
mechanism as NFSv4 for sending asynchronous RPC calls and then waiting for
them to complete. This ensures that the UNLOCK and CANCEL RPC calls will
complete even if the user interrupts the call, yet satisfies the
above request for synchronous behaviour on process exit.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
 		2008-04-19 16:53:39 -04:00
..
9p Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
adfs mount options: fix adfs 2008-02-08 09:22:39 -08:00
affs mount options: fix affs 2008-02-08 09:22:39 -08:00
afs Use path_put() in a few places instead of {mnt,d}put() 2008-02-14 21:13:33 -08:00
autofs mount options: fix autofs 2008-02-08 09:22:40 -08:00
autofs4 Introduce path_put() 2008-02-14 21:13:33 -08:00
befs mount options: fix befs 2008-02-08 09:22:40 -08:00
bfs iget: stop BFS from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
cifs [CIFS] remove unused variable 2008-02-26 03:44:02 +00:00
coda Introduce path_put() 2008-02-14 21:13:33 -08:00
configfs Introduce path_put() 2008-02-14 21:13:33 -08:00
cramfs
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debugfs debugfs: fix sparse warnings 2008-03-04 14:47:06 -08:00
devpts mount options: fix devpts 2008-02-08 09:22:40 -08:00
dlm dlm: fix rcom_names message to self 2008-02-21 15:19:54 -06:00
ecryptfs eCryptfs: make ecryptfs_prepare_write decrypt the page 2008-03-04 16:35:16 -08:00
efs efs: move headers out of include/linux/ 2008-02-23 17:12:15 -08:00
exportfs exportfs: update documentation 2007-10-22 08:13:21 -07:00
ext2 mount options: fix ext2 2008-02-08 09:22:40 -08:00
ext3 ext3: fix mount option parsing 2008-03-04 16:35:18 -08:00
ext4 ext4: add missing ext4_journal_stop() 2008-02-25 15:37:42 -05:00
fat mount options: fix fat 2008-02-08 09:22:40 -08:00
freevxfs iget: stop FreeVXFS from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
fuse fuse: fix permission checking 2008-02-23 17:12:13 -08:00
gfs2 Introduce path_put() 2008-02-14 21:13:33 -08:00
hfs hfs_bnode_find() can fail, resulting in hfs_bnode_split() breakage 2008-03-17 09:46:55 -07:00
hfsplus fs/hfsplus/unicode.c: fix uninitialized var warning 2008-02-08 09:22:36 -08:00
hostfs uml: fix hostfs tv_usec calculations 2008-02-05 09:44:30 -08:00
hpfs mount options: fix hpfs 2008-02-08 09:22:40 -08:00
hppfs iget: stop HPPFS from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
hugetlbfs hugetlb: allow sticky directory mount option 2008-02-05 09:44:14 -08:00
isofs mount options: fix isofs 2008-02-08 09:22:40 -08:00
jbd docbook: fix filesystems.tmpl source files 2008-03-03 10:47:13 -08:00
jbd2 JBD2: Clear buffer_ordered flag for barried IO request on success 2008-02-10 01:09:32 -05:00
jffs2 Merge git://git.infradead.org/mtd-2.6 2008-02-07 10:20:31 -08:00
jfs BKL-removal: Implement a compat_ioctl handler for JFS 2008-02-07 13:45:29 -06:00
lockd NLM/lockd: convert __nlm_async_call to use rpc_run_task() 2008-04-19 16:53:39 -04:00
minix iget: stop the MINIX filesystem from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
msdos
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ncpfs mount options: fix ncpfs 2008-02-08 09:22:40 -08:00
nfs NFSv4: Ensure we don't corrupt fl->fl_flags in nfs4_proc_unlck 2008-04-19 16:53:33 -04:00
nfs_common
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nfsd nfsd: fix oops on access from high-numbered ports 2008-03-14 16:49:15 -07:00
nls
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ntfs is_vmalloc_addr(): Check if an address is within the vmalloc boundaries 2008-02-05 09:44:14 -08:00
ocfs2 ocfs2: Fix NULL pointer dereferences in o2net 2008-03-10 15:14:19 -07:00
openpromfs iget: stop OPENPROMFS from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
partitions Enhanced partition statistics: remove old partition statistics 2008-02-08 12:42:01 +01:00
proc [PATCH] export sessionid alongside the loginuid in procfs 2008-03-18 10:51:22 -04:00
qnx4 iget: stop QNX4 from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
ramfs
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reiserfs fs/reiserfs/super.c: correct use of ! and & 2008-03-04 16:35:16 -08:00
romfs iget: stop ROMFS from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
smbfs fs/smbfs/inode.c: fix warning message deprecating smbfs 2008-02-13 16:21:19 -08:00
sysfs sysfs: remove BUG_ON() from sysfs_remove_group() 2008-02-07 11:31:46 -08:00
sysv iget: stop the SYSV filesystem from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
udf udf: fix udf_add_free_space 2008-02-13 16:21:20 -08:00
ufs ufs: fix parenthesisation in ufs_set_fs_state() 2008-02-23 17:12:13 -08:00
vfat Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
xfs [XFS] fix inode leak in xfs_iget_core() 2008-03-06 16:38:50 +11:00
Kconfig SUNRPC: Add a default setting for CONFIG_SUNRPC_BIND34 2008-03-19 18:00:41 -04:00
Kconfig.binfmt aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT 2008-02-08 09:22:30 -08:00
Makefile x86: compat_binfmt_elf Kconfig 2008-01-30 13:31:46 +01:00
aio.c aio: negative offset should return -EINVAL 2008-02-08 09:22:33 -08:00
anon_inodes.c
…
attr.c
…
bad_inode.c iget: introduce a function to register iget failure 2008-02-07 08:42:26 -08:00
binfmt_aout.c aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT 2008-02-08 09:22:30 -08:00
binfmt_elf.c core dump: user_regset writeback 2008-03-04 16:35:10 -08:00
binfmt_elf_fdpic.c
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binfmt_em86.c
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binfmt_flat.c FLAT binaries: drop BINFMT_FLAT bad header magic warning 2008-02-14 20:58:05 -08:00
binfmt_misc.c
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binfmt_script.c
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binfmt_som.c aout: remove unnecessary inclusions of {asm, linux}/a.out.h 2008-02-08 09:22:30 -08:00
bio.c Revert "unexport bio_{,un}map_user" 2008-03-17 21:14:40 +01:00
block_dev.c fs/block_dev.c: remove #if 0'ed code 2008-02-19 10:04:00 +01:00
buffer.c vfs: fix NULL pointer dereference in fsync_buffers_list() 2008-03-04 16:35:10 -08:00
char_dev.c fs/char_dev.c: chrdev_open marked static and removed from fs.h 2008-02-08 09:22:42 -08:00
compat.c Merge branch 'linus_origin' into hotfixes 2008-02-15 13:36:30 -05:00
compat_binfmt_elf.c x86: compat_binfmt_elf 2008-01-30 13:31:46 +01:00
compat_ioctl.c d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
dcache.c dentries: Extract common code to remove dentry from lru 2008-02-14 21:17:09 -08:00
dcookies.c d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
direct-io.c Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user 2008-02-05 09:44:13 -08:00
dnotify.c
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dquot.c Introduce path_put() 2008-02-14 21:13:33 -08:00
drop_caches.c
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eventfd.c fs/eventfd.c should #include <linux/syscalls.h> 2008-02-06 10:41:03 -08:00
eventpoll.c lockdep: annotate epoll 2008-02-05 09:44:07 -08:00
exec.c Allow ARG_MAX execve string space even with a small stack limit 2008-03-03 10:12:14 -08:00
fcntl.c fs: remove fastcall, it is always empty 2008-02-08 09:22:31 -08:00
fifo.c
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file.c get rid of NR_OPEN and introduce a sysctl_nr_open 2008-02-06 10:41:06 -08:00
file_table.c fs: remove fastcall, it is always empty 2008-02-08 09:22:31 -08:00
filesystems.c
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fs-writeback.c writeback: speed up writeback of big dirty files 2008-02-05 09:44:19 -08:00
generic_acl.c
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inode.c iget: remove iget() and the read_inode() super op as being obsolete 2008-02-07 08:42:29 -08:00
inotify.c inotify: remove debug code 2008-02-06 10:41:07 -08:00
inotify_user.c Introduce path_put() 2008-02-14 21:13:33 -08:00
internal.h
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ioctl.c fix up kerneldoc in fs/ioctl.c a little bit 2008-02-09 11:08:33 -08:00
ioprio.c cfq-iosched: relax IOPRIO_CLASS_IDLE restrictions 2008-01-28 11:38:15 +01:00
libfs.c Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user 2008-02-05 09:44:13 -08:00
locks.c Pidns: make full use of xxx_vnr() calls 2008-02-08 09:22:29 -08:00
mbcache.c fs: Fix to correct the mbcache entries counter 2007-10-25 15:18:29 -07:00
mpage.c docbook: fix filesystems.tmpl source files 2008-03-03 10:47:13 -08:00
namei.c Use struct path in fs_struct 2008-02-14 21:13:33 -08:00
namespace.c d_path: Make seq_path() use a struct path argument 2008-02-14 21:17:08 -08:00
nfsctl.c Introduce path_put() 2008-02-14 21:13:33 -08:00
no-block.c
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open.c Make set_fs_{root,pwd} take a struct path 2008-02-14 21:13:33 -08:00
pipe.c kernel-doc: fix fs/pipe.c notation 2008-02-13 16:21:19 -08:00
pnode.c MNT_UNBINDABLE fix 2008-02-06 10:41:02 -08:00
pnode.h
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posix_acl.c
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quota.c Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
quota_v1.c
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quota_v2.c
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read_write.c remove the unused exports of sys_open/sys_read 2008-02-08 09:22:36 -08:00
read_write.h
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readdir.c Use mutex_lock_killable in vfs_readdir 2007-12-06 17:39:54 -05:00
select.c make sys_poll() wait at least timeout ms 2008-02-06 10:41:09 -08:00
seq_file.c d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
signalfd.c fs/signalfd.c should #include <linux/syscalls.h> 2008-02-06 10:41:03 -08:00
splice.c splice: only return -EAGAIN if there's hope of more data 2008-03-04 11:14:39 +01:00
stack.c
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stat.c Introduce path_put() 2008-02-14 21:13:33 -08:00
super.c LSM/SELinux: Interfaces to allow FS to control mount options 2008-03-06 08:40:53 +11:00
sync.c
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timerfd.c timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
utimes.c Introduce path_put() 2008-02-14 21:13:33 -08:00
xattr.c Introduce path_put() 2008-02-14 21:13:33 -08:00
xattr_acl.c
…