Jeff Layton 031fd3aa20 NLM: set RPC_CLNT_CREATE_NOPING for NLM RPC clients ... It's currently possible for an unresponsive NLM client to completely lock up a server's lockd. The scenario is something like this: 1) client1 (or a process on the server) takes a lock on a file 2) client2 tries to take a blocking lock on the same file and awaits the callback 3) client2 goes unresponsive (plug pulled, network partition, etc) 4) client1 releases the lock ...at that point the server's lockd will try to queue up a GRANT_MSG callback for client2, but first it requeues the block with a timeout of 30s. nlm_async_call will attempt to bind the RPC client to client2 and will call rpc_ping. rpc_ping entails a sync RPC call and if client2 is unresponsive it will take around 60s for that to time out. Once it times out, it's already time to retry the block and the whole process repeats. Once in this situation, nlmsvc_retry_blocked will never return until the host starts responding again. lockd won't service new calls. Fix this by skipping the RPC ping on NLM RPC clients. This makes nlm_async_call return quickly when called. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>		2008-02-10 18:09:36 -05:00
..
9p
adfs
affs
afs	vfs: Add 64 bit i_version support	2008-01-28 23:58:27 -05:00
autofs
autofs4
befs	fs/: Spelling fixes	2008-02-03 17:33:42 +02:00
bfs	regression: bfs endianness bug	2007-12-05 09:25:20 -08:00
cifs	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
coda	coda: convert struct class_device to struct device	2008-01-24 20:40:05 -08:00
configfs	configfs: file.c fix possible recursive locking	2008-01-25 15:05:47 -08:00
cramfs
debugfs	Kobject: convert fs/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
devpts
dlm	dlm: static initialization improvements	2008-01-30 11:04:43 -06:00
ecryptfs	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
efs
exportfs
ext2	ext2: Fix the max file size for ext2 file system.	2008-01-28 23:58:26 -05:00
ext3	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
ext4	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
fat	fat: optimize fat_count_free_clusters()	2008-01-08 16:10:35 -08:00
freevxfs	fs/: Spelling fixes	2008-02-03 17:33:42 +02:00
fuse	Kobject: convert fs/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
gfs2	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
hfs	hfs: fix coverity-found null deref	2008-01-17 15:38:58 -08:00
hfsplus
hostfs	uml: fix hostfs tv_usec calculations	2008-02-05 09:44:30 -08:00
hpfs
hppfs
hugetlbfs	hugetlb: allow sticky directory mount option	2008-02-05 09:44:14 -08:00
isofs
jbd	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
jbd2	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
jffs2	Typoes: "whith" -> "with"	2008-02-03 15:14:02 +02:00
jfs	Spelling fixes: lenght->length	2008-02-03 15:42:53 +02:00
lockd	NLM: set RPC_CLNT_CREATE_NOPING for NLM RPC clients	2008-02-10 18:09:36 -05:00
minix
msdos
ncpfs	vm audit: add VM_DONTEXPAND to mmap for drivers that need it	2008-02-04 07:55:38 -08:00
nfs	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
nfs_common
nfsd	Add 64-bit capability support to the kernel	2008-02-05 09:44:20 -08:00
nls
ntfs	is_vmalloc_addr(): Check if an address is within the vmalloc boundaries	2008-02-05 09:44:14 -08:00
ocfs2	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
openpromfs	[SPARC]: Constify function pointer tables.	2008-01-22 18:29:20 -08:00
partitions	Kobject: convert fs/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
proc	Add 64-bit capability support to the kernel	2008-02-05 09:44:20 -08:00
qnx4
ramfs
reiserfs	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
romfs
smbfs	deprecate smbfs in favour of cifs	2008-02-05 14:37:15 -08:00
sysfs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2008-01-25 17:19:08 -08:00
sysv
udf
ufs	ufs: fix nexstep dir block size	2007-12-05 09:21:18 -08:00
vfat
xfs	is_vmalloc_addr(): Check if an address is within the vmalloc boundaries	2008-02-05 09:44:14 -08:00
aio.c	core: remove last users of empty FASTCALL macro	2008-01-30 13:31:17 +01:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c	mm: fix exit_mmap BUG() on a.out binary exit	2007-12-20 07:49:53 -08:00
binfmt_elf.c	fs/binfmt_elf.c: spello fix	2008-02-03 18:05:15 +02:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio.c	__bio_clone: don't calculate hw/phys segment counts	2008-01-28 10:04:46 +01:00
block_dev.c	Driver core: convert block from raw kobjects to core devices	2008-01-24 20:40:36 -08:00
buffer.c	bufferhead: revert constructor removal	2008-02-05 09:44:14 -08:00
char_dev.c	Kobject: rename kobject_init_ng() to kobject_init()	2008-01-24 20:40:38 -08:00
compat.c	timerfd: new timerfd API	2008-02-05 09:44:07 -08:00
compat_binfmt_elf.c	x86: compat_binfmt_elf	2008-01-30 13:31:46 +01:00
compat_ioctl.c	remove __attribute_used__	2008-01-28 23:21:18 +01:00
dcache.c
dcookies.c
direct-io.c	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
dnotify.c
dquot.c	Don't send quota messages repeatedly when hardlimit reached	2007-12-23 12:54:36 -08:00
drop_caches.c
eventfd.c
eventpoll.c	lockdep: annotate epoll	2008-02-05 09:44:07 -08:00
exec.c	exec: rework the group exit and fix the race with kill	2008-02-05 09:44:07 -08:00
fcntl.c
fifo.c
file.c
file_table.c
filesystems.c
fs-writeback.c	writeback: speed up writeback of big dirty files	2008-02-05 09:44:19 -08:00
generic_acl.c
inode.c	ext4: Add inode version support in ext4	2008-01-28 23:58:27 -05:00
inotify.c
inotify_user.c
internal.h
ioctl.c
ioprio.c	cfq-iosched: relax IOPRIO_CLASS_IDLE restrictions	2008-01-28 11:38:15 +01:00
Kconfig	deprecate smbfs in favour of cifs	2008-02-05 14:37:15 -08:00
Kconfig.binfmt	x86: compat_binfmt_elf Kconfig	2008-01-30 13:31:46 +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	pid-namespaces-vs-locks-interaction	2008-02-03 17:51:36 -05:00
Makefile	x86: compat_binfmt_elf Kconfig	2008-01-30 13:31:46 +01:00
mbcache.c
mpage.c	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
namei.c	Use access mode instead of open flags to determine needed permissions	2008-01-12 14:47:58 -08:00
namespace.c	kobject: convert main fs kobject to use kobject_create	2008-01-24 20:40:13 -08:00
nfsctl.c
no-block.c
open.c	mark sys_open/sys_read exports unused	2007-11-14 18:45:42 -08:00
pipe.c
pnode.c
pnode.h
posix_acl.c
quota.c
quota_v1.c
quota_v2.c
read_write.c	ext4: export iov_shorten from kernel for ext4's use	2008-01-28 23:58:27 -05:00
read_write.h
readdir.c	Use mutex_lock_killable in vfs_readdir	2007-12-06 17:39:54 -05:00
select.c
seq_file.c
signalfd.c	Fix a small number of "memeber" typoes.	2008-02-03 15:12:15 +02:00
splice.c	splice: always updated atime in direct splice	2008-02-01 09:26:32 +01:00
stack.c
stat.c
super.c
sync.c
timerfd.c	timerfd: new timerfd API	2008-02-05 09:44:07 -08:00
utimes.c
xattr.c	VFS: Reorder vfs_getxattr to avoid unnecessary calls to the LSM	2008-02-05 09:44:20 -08:00
xattr_acl.c