user/sven/linux.git/net/sunrpc/cache.c, branch v3.8

SUNRPC: remove BUG_ON calls from cache_read

2012-11-04T19:43:41Z

Replace BUG_ON() with WARN_ON_ONCE() in two parts of cache_read(). Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust

SUNRPC: Prevent kernel stack corruption on long values of flush

2012-10-17T18:59:10Z

The buffer size in read_flush() is too small for the longest possible values for it. This can lead to a kernel stack corruption: [ 43.047329] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff833e64b4 [ 43.047329] [ 43.049030] Pid: 6015, comm: trinity-child18 Tainted: G W 3.5.0-rc7-next-20120716-sasha #221 [ 43.050038] Call Trace: [ 43.050435] [] panic+0xcd/0x1f4 [ 43.050931] [] ? read_flush.isra.7+0xe4/0x100 [ 43.051602] [] __stack_chk_fail+0x16/0x20 [ 43.052206] [] read_flush.isra.7+0xe4/0x100 [ 43.052951] [] ? read_flush_pipefs+0x30/0x30 [ 43.053594] [] read_flush_procfs+0x2c/0x30 [ 43.053596] [] proc_reg_read+0x9c/0xd0 [ 43.053596] [] ? proc_reg_write+0xd0/0xd0 [ 43.053596] [] do_loop_readv_writev+0x4b/0x90 [ 43.053596] [] do_readv_writev+0xf6/0x1d0 [ 43.053596] [] vfs_readv+0x3e/0x60 [ 43.053596] [] sys_readv+0x48/0xb0 [ 43.053596] [] system_call_fastpath+0x1a/0x1f Signed-off-by: Sasha Levin Cc: stable@kernel.org Signed-off-by: J. Bruce Fields

workqueue: make deferrable delayed_work initializer names consistent

2012-08-21T20:18:23Z

Initalizers for deferrable delayed_work are confused. * __DEFERRED_WORK_INITIALIZER() * DECLARE_DEFERRED_WORK() * INIT_DELAYED_WORK_DEFERRABLE() Rename them to * __DEFERRABLE_WORK_INITIALIZER() * DECLARE_DEFERRABLE_WORK() * INIT_DEFERRABLE_WORK() This patch doesn't cause any functional changes. Signed-off-by: Tejun Heo

SUNRPC/cache: fix reporting of expired cache entries in 'content' file.

2012-07-12T15:20:28Z

Entries that are in a sunrpc cache but are not valid should be reported with a leading '#' so they look like a comment. Commit d202cce8963d9 (sunrpc: never return expired entries in sunrpc_cache_lookup) broke this for expired entries. This particularly applies to entries that have been replaced by newer entries. sunrpc_cache_update sets the expiry of the replaced entry to '0', but it remains in the cache until the next 'cache_clean'. The result is that if you echo 0 2000000000 1 0 > /proc/net/rpc/auth.unix.gid/channel several times, then cat /proc/net/rpc/auth.unix.gid/content It will display multiple entries for the one uid, which is at least confusing: #uid cnt: gids... 0 1: 0 0 1: 0 0 1: 0 With this patch, expired entries are marked as comments so you get #uid cnt: gids... 0 1: 0 # 0 1: 0 # 0 1: 0 These expired entries will never be seen by cache_check() as they are always *after* a non-expired entry with the same key - so the extra check is only needed in c_show() Signed-off-by: NeilBrown -- It's not a big problem, but it had me confused for a while, so it could well confuse others. Thanks, NeilBrown Signed-off-by: J. Bruce Fields

net: cleanup unsigned to unsigned int

2012-04-15T16:44:40Z

Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

Merge nfs containerization work from Trond's tree

2012-03-26T15:48:54Z

The nfs containerization work is a prerequisite for Jeff Layton's reboot recovery rework.

nfsd: don't allow zero length strings in cache_parse()

2012-02-03T19:26:42Z

There is no point in passing a zero length string here and quite a few of that cache_parse() implementations will Oops if count is zero. Signed-off-by: Dan Carpenter Cc: stable@kernel.org Signed-off-by: J. Bruce Fields

SUNRPC: generic cache register routines removed

2012-02-01T00:28:16Z

All cache users now uses network-namespace-aware routines, so generic ones are obsolete. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust Acked-by: J. Bruce Fields

SUNRPC: cache creation and destruction routines introduced

2012-02-01T00:28:14Z

This patch prepares infrastructure for network namespace aware cache detail allocation. One note about adding network namespace link to cache structure. It's going to be used later in NFS DNS cache parsing routine (nfs_dns_parse for rpc_pton() call). Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust Acked-by: J. Bruce Fields

SUNRPC: split cache creation and PipeFS registration

2012-01-31T23:20:26Z

This precursor patch splits SUNRPC cache creation and PipeFS registartion. It's required for latter split of NFS DNS resolver cache creation per network namespace context and PipeFS registration/unregistration on MOUNT/UMOUNT events. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust