3 Commits

Author	SHA1	Message	Date
Trond Myklebust	01d0ae8bea	NFSv4: Fix an oops in nfs4_fill_super ... The mount statistics patches introduced a call to nfs_free_iostats that is not only redundant, but actually causes an oops. Also fix a memory leak due to the lack of a call to nfs_free_iostats on unmount. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>	2006-03-20 13:44:48 -05:00
Chuck Lever	006ea73e5f	NFS: add hooks to account for NFSERR_JUKEBOX errors ... Make an inode or an nfs_server struct available in the logic that handles JUKEBOX/DELAY type errors so the NFS client can account for them. This patch is split out from the main nfs iostat patch to highlight minor architectural changes required to support this statistic. Test plan: None. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>	2006-03-20 13:44:14 -05:00
Chuck Lever	d9ef5a8c26	NFS: introduce mechanism for tracking NFS client metrics ... Add a per-superblock performance counter facility to the NFS client. This facility mimics the counters available for block devices and for networking. Expose these new counters via the new /proc/self/mountstats interface. Thanks to Andrew Morton and Trond Myklebust for their review and comments. Test plan: fsx and iozone on UP and SMP systems, with and without pre-emption. Watch for memory overwrite bugs, and performance loss (significantly more CPU required per op). Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>	2006-03-20 13:44:13 -05:00