BMC/Intel-BMC/linux.git/fs/nfs/pnfs.c, branch dev

nfs: plug memory leak when ->prepare_layoutcommit fails

2015-07-28T13:07:02+00:00

"data" is currently leaked when the prepare_layoutcommit operation returns an error. Put the cred before taking the spinlock in that case, take the lock and then goto out_unlock which will drop the lock and then free "data". Signed-off-by: Jeff Layton Signed-off-by: Trond Myklebust

pNFS: Don't throw out valid layout segments

2015-07-11T14:16:17+00:00

It is OK for layout segments to remain hashed even if no-one holds any references to them, provided that the segments are still valid. Signed-off-by: Trond Myklebust

pNFS: pnfs_roc_drain() fix a race with open

2015-07-11T14:16:17+00:00

If a process reopens the file before we can send off the CLOSE/DELEGRETURN, then pnfs_roc_drain() may end up waiting for a new set of layout segments that are marked as return-on-close, but haven't yet been returned. Fix this by only waiting for those layout segments that were invalidated in pnfs_roc(). Signed-off-by: Trond Myklebust

pNFS: Fix races between return-on-close and layoutreturn.

2015-07-11T14:16:16+00:00

If one or more of the layout segments reports an error during I/O, then we may have to send a layoutreturn to report the error back to the NFS metadata server. This patch ensures that the return-on-close code can detect the outstanding layoutreturn, and not preempt it. Signed-off-by: Trond Myklebust

pNFS: pnfs_roc_drain should return 'true' when sleeping

2015-07-11T14:16:16+00:00

Also clean up the case where we don't find a return-on-close layout segment. Signed-off-by: Trond Myklebust

NFSv4.2: LAYOUTSTATS is optional to implement

2015-06-27T15:48:58+00:00

Make it so, by checking the return value for NFS4ERR_MOTSUPP and caching the information as a server capability. Signed-off-by: Trond Myklebust

nfs: provide pnfs_report_layoutstat when NFS42 is disabled

2015-06-26T18:01:37+00:00

kbuild test robot reported: fs/built-in.o: In function `pnfs_report_layoutstat': >> (.text+0x151a1c): undefined reference to `nfs42_proc_layoutstats_generic' Reported-by: kbuild test robot Signed-off-by: Peng Tao Signed-off-by: Trond Myklebust

nfs42: serialize LAYOUTSTATS calls of the same file

2015-06-24T14:53:11+00:00

There is no need to report concurrently. Reviewed-by: Jeff Layton Signed-off-by: Peng Tao Signed-off-by: Trond Myklebust

pnfs: add pnfs_report_layoutstat helper function

2015-06-24T14:17:37+00:00

Reviewed-by: Jeff Layton Signed-off-by: Peng Tao Signed-off-by: Trond Myklebust

NFS: Ensure we set NFS_CONTEXT_RESEND_WRITES when requeuing writes

2015-06-18T00:00:42+00:00

If a write attempt fails, and the write is queued up for resending to the server, as opposed to being dropped, then we need to set the appropriate flag so that nfs_file_fsync() does the right thing. Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust