Adding stateid information to tracepoints
authorOlga Kornievskaia <kolga@netapp.com>
Tue, 24 Nov 2015 18:29:41 +0000 (13:29 -0500)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Mon, 28 Dec 2015 14:57:14 +0000 (09:57 -0500)
commit48c9579a1afe4315be4576ec4c0b24c2715da0e0
tree469a87df1cf605f15d91374228228fdaea64abe2
parent74bf8efb5fa6e958d2d7c7917b8bb672085ec0c6
Adding stateid information to tracepoints

Operations to which stateid information is added:
close, delegreturn, open, read, setattr, layoutget, layoutcommit, test_stateid,
write, lock, locku, lockt

Format is "stateid=<seqid>:<crc32 hash stateid.other>", also "openstateid=",
"layoutstateid=", and "lockstateid=" for open_file, layoutget, set_lock
tracepoints.

New function is added to internal.h, nfs_stateid_hash(), to compute the hash

trace_nfs4_setattr() is moved from nfs4_do_setattr() to _nfs4_do_setattr()
to get access to stateid.

trace_nfs4_setattr and trace_nfs4_delegreturn are changed from INODE_EVENT
to new event type, INODE_STATEID_EVENT which is same as INODE_EVENT but adds
stateid information

for locking tracepoints, moved trace_nfs4_set_lock() into _nfs4_do_setlk()
to get access to stateid information, and removed trace_nfs4_lock_reclaim(),
trace_nfs4_lock_expired() as they call into _nfs4_do_setlk() and both were
previously same LOCK_EVENT type.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
fs/nfs/internal.h
fs/nfs/nfs4proc.c
fs/nfs/nfs4trace.h