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Chuck Lever ffe5a83005 NFS: Slow down state manager after an unhandled error 
If the state manager thread is not actually able to fully recover from
some situation, it wakes up waiters, who kick off a new state manager
thread.  Quite often the fresh invocation of the state manager is just
as successful.

This results in a livelock as the client dumps thousands of NFS
requests a second on the network in a vain attempt to recover.  Not
very friendly.

To mitigate this situation, add a delay in the state manager after
an unhandled error, so that the client sends just a few requests
every second in this case.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-10-01 15:31:51 -07:00
..
blocklayout
NFSv4.1: Replace get_device_info() with filelayout_get_device_info()
2012-09-28 16:03:08 -04:00
objlayout
pnfs-obj: Better IO pattern in case of unaligned offset
2012-08-02 17:42:51 -04:00
cache_lib.c
NFS: remove RPC PipeFS mount point references from NFS cache routines
2012-01-31 18:20:26 -05:00
cache_lib.h
NFS: DNS resolver PipeFS notifier introduced
2012-01-31 18:20:26 -05:00
callback_proc.c
NFSv4.1: Clean up the removal of pnfs_layout_hdr from the server list
2012-09-28 16:03:14 -04:00
callback_xdr.c
SUNRPC: service request network namespace helper introduced
2012-07-27 16:49:21 -04:00
callback.c
NFS: add debug messages to callback down function
2012-10-01 15:26:06 -07:00
callback.h
NFS: make nfs_callback_tcpport6 per network context
2012-10-01 15:25:51 -07:00
client.c
NFS: Fix a regression when loading the NFS v4 module
2012-08-16 16:15:49 -04:00
delegation.c
NFS: Create a return_delegation rpc op
2012-06-29 11:46:45 -04:00
delegation.h
NFS: Convert v4 into a module
2012-07-30 19:06:52 -04:00
dir.c
NFSv4: Add ACCESS operation to OPEN compound
2012-10-01 15:20:11 -07:00
direct.c
NFS: Convert nfs_get_lock_context to return an ERR_PTR on failure
2012-09-28 16:03:03 -04:00
dns_resolve.c
NFS: Convert v4 into a module
2012-07-30 19:06:52 -04:00
dns_resolve.h
NFS: DNS resolver cache per network namespace context introduced
2012-01-31 18:20:26 -05:00
file.c
NFS: Write the entire file if a server reboot occurs during fsync()
2012-09-28 16:03:05 -04:00
fscache-index.c
NFS: Use the inode->i_version to cache NFSv4 change attribute information
2011-10-18 09:14:34 -07:00
fscache.c
NFS: Don't pass mount data to nfs_fscache_get_super_cookie()
2012-05-14 17:30:26 -07:00
fscache.h
NFS: Fix a compile issue when CONFIG_NFS_FSCACHE was undefined
2012-05-16 10:24:20 -07:00
getroot.c
NFS: Move the v4 getroot code to nfs4getroot.c
2012-07-17 13:33:51 -04:00
idmap.c
NFS: Use kzalloc() instead of kmalloc() in the idmapper
2012-10-01 15:18:44 -07:00
inode.c
NFS: Clean up helper function nfs4_select_rw_stateid()
2012-09-28 16:03:04 -04:00
internal.h
NFS: nfs_parsed_mount_options can use unsigned int
2012-10-01 15:31:41 -07:00
iostat.h
NFS: Squelch compiler warning in nfs_add_server_stats()
2010-05-14 15:09:31 -04:00
Kconfig
Merge branch 'akpm' (Andrew's patch-bomb)
2012-07-31 19:25:39 -07:00
Makefile
NFS: Fix a regression when loading the NFS v4 module
2012-08-16 16:15:49 -04:00
mount_clnt.c
SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG
2012-03-20 13:08:26 -04:00
namespace.c
NFS: Convert v4 into a module
2012-07-30 19:06:52 -04:00
netns.h
NFS: callback per-net usage counting introduced
2012-10-01 15:25:57 -07:00
nfs2super.c
NFS: Convert v2 into a module
2012-07-30 19:06:41 -04:00
nfs2xdr.c
NFS: Let xdr_read_pages() check for buffer overflows
2012-06-28 17:20:43 -04:00
nfs3acl.c
NFS: Fix a number of sparse warnings
2012-03-11 15:14:16 -04:00
nfs3client.c
NFS: Only initialize the ACL client in the v3 case
2012-07-30 19:05:54 -04:00
nfs3proc.c
NFS: Fix the initialisation of the readdir 'cookieverf' array
2012-09-04 14:52:42 -04:00
nfs3super.c
NFS: Convert v3 into a module
2012-07-30 19:06:46 -04:00
nfs3xdr.c
NFS: Cleanup - only store the write verifier in struct nfs_page
2012-06-28 17:20:50 -04:00
nfs4_fs.h
NFSv4.1: Simplify the pNFS return-on-close code
2012-09-28 16:03:12 -04:00
nfs4client.c
NFS: move per-net callback thread initialization to nfs_callback_up_net()
2012-10-01 15:25:24 -07:00
nfs4file.c
NFS: Write the entire file if a server reboot occurs during fsync()
2012-09-28 16:03:05 -04:00
nfs4filelayout.c
NFSv4.1: Get rid of the NFS_LAYOUT_DESTROYED state
2012-09-28 16:03:16 -04:00
nfs4filelayout.h
NFSv4.1: Get rid of pNFS layout state "NFS_LAYOUT_INVALID"
2012-09-28 16:03:12 -04:00
nfs4filelayoutdev.c
NFSv4.1: pNFS data servers may be temporarily offline
2012-09-28 16:03:09 -04:00
nfs4getroot.c
NFS: Move the v4 getroot code to nfs4getroot.c
2012-07-17 13:33:51 -04:00
nfs4namespace.c
NFS4: avoid underflow when converting error to pointer.
2012-09-25 10:38:54 -04:00
nfs4proc.c
NFSv4: Add ACCESS operation to OPEN compound
2012-10-01 15:20:11 -07:00
nfs4renewd.c
NFS: Add NFSDBG_STATE
2012-05-22 16:45:42 -04:00
nfs4state.c
NFS: Slow down state manager after an unhandled error
2012-10-01 15:31:51 -07:00
nfs4super.c
NFS: Fix a regression when loading the NFS v4 module
2012-08-16 16:15:49 -04:00
nfs4sysctl.c
NFS: Initialize v4 sysctls from nfs_init_v4()
2012-07-17 13:33:18 -04:00
nfs4xdr.c
NFSv4: Add ACCESS operation to OPEN compound
2012-10-01 15:20:11 -07:00
nfs.h
NFS: Convert v4 into a module
2012-07-30 19:06:52 -04:00
nfsroot.c
SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG
2012-03-20 13:08:26 -04:00
pagelist.c
NFS: Clean up helper function nfs4_select_rw_stateid()
2012-09-28 16:03:04 -04:00
pnfs_dev.c
NFSv4.1: pNFS data servers may be temporarily offline
2012-09-28 16:03:09 -04:00
pnfs.c
NFSv4.1: _pnfs_return_layout() shouldn't invalidate the layout on failure
2012-09-28 16:03:18 -04:00
pnfs.h
NFSv4.1: Remove the NFS_LAYOUT_RETURNED state
2012-09-28 16:03:17 -04:00
proc.c
NFS: Only initialize the ACL client in the v3 case
2012-07-30 19:05:54 -04:00
read.c
Merge branch 'akpm' (Andrew's patch-bomb)
2012-07-31 19:25:39 -07:00
super.c
NFS: Fix a problem with the legacy binary mount code
2012-09-04 14:52:43 -04:00
symlink.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
sysctl.c
NFS: Initialize v4 sysctls from nfs_init_v4()
2012-07-17 13:33:18 -04:00
unlink.c
NFS: Create a return_delegation rpc op
2012-06-29 11:46:45 -04:00
write.c
NFS: Fix fdatasync/fsync() when confronted with a server reboot
2012-09-28 16:03:05 -04:00