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| author |   Fred Isaman <fred.isaman@gmail.com> | 2016-10-18 13:39:51 -0400 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-05-31 15:03:11 -0400 |
| commit | 30ae2412e90f0ae177da631e36537392d89a2ccd (patch) | |
| tree | 53b80f8afab7dcd0a4956aba3244ac03e92c9d39 /fs/nfs/pnfs.c | |
| parent | pnfs: Add barrier to prevent lgopen using LAYOUTGET during recall (diff) | |
| download | linux-dev-30ae2412e90f0ae177da631e36537392d89a2ccd.tar.xz linux-dev-30ae2412e90f0ae177da631e36537392d89a2ccd.zip | |
pnfs: Fix manipulation of NFS_LAYOUT_FIRST_LAYOUTGET
The flag was not always being cleared after LAYOUTGET on OPEN.
Signed-off-by: Fred Isaman <fred.isaman@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/pnfs.c')
| -rw-r--r-- | fs/nfs/pnfs.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index a29fdea2db91..b0e42fd07cb1 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -2129,13 +2129,11 @@ void pnfs_parse_lgopen(struct inode *ino, struct nfs4_layoutget *lgp, lgp->args.inode = ino; } else lo = NFS_I(lgp->args.inode)->layout; - pnfs_get_layout_hdr(lo); if (read_seqcount_retry(&srv->nfs_client->cl_callback_count, lgp->callback_count)) - goto out; + return; lseg = pnfs_layout_process(lgp); - atomic_dec(&lo->plh_outstanding); if (IS_ERR(lseg)) { /* ignore lseg, but would like to mark not to try lgopen */ /* clear some lo flags - first and fail ???? */ @@ -2144,9 +2142,19 @@ void pnfs_parse_lgopen(struct inode *ino, struct nfs4_layoutget *lgp, pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); pnfs_put_lseg(lseg); } -out: - pnfs_clear_first_layoutget(lo); - pnfs_put_layout_hdr(lo); +} + +void nfs4_lgopen_release(struct nfs4_layoutget *lgp) +{ + if (lgp != NULL) { + struct inode *inode = lgp->args.inode; + if (inode) { + struct pnfs_layout_hdr *lo = NFS_I(inode)->layout; + atomic_dec(&lo->plh_outstanding); + pnfs_clear_first_layoutget(lo); + } + pnfs_layoutget_free(lgp); + } } struct pnfs_layout_segment * |