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| author |   Trond Myklebust <trondmy@gmail.com> | 2018-08-01 14:28:57 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2018-08-08 16:50:03 -0400 |
| commit | 2230ca0d284e6431ae7baf444f49f662bb490a58 (patch) | |
| tree | 99fd7b4aeb3a2c3f2bec4ac65226c544039396b5 /fs/nfs | |
| parent | NFS: Mark expected switch fall-throughs (diff) | |
| download | linux-dev-2230ca0d284e6431ae7baf444f49f662bb490a58.tar.xz linux-dev-2230ca0d284e6431ae7baf444f49f662bb490a58.zip | |
pnfs: pnfs_find_lseg() should not check NFS_LSEG_LAYOUTRETURN
Layout segment validity is determined only by the NFS_LSEG_VALID flag. If
it is set, the layout segment is finable. As it is, when the flexfiles
driver sets NFS_LSEG_LAYOUTRETURN to indicate that we cannot discard
the layout segment, but that it must be returned, then this can result
in an unnecessary layoutget storm.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/pnfs.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 7020f726275c..8f03bdb191aa 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1650,7 +1650,6 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo, list_for_each_entry(lseg, &lo->plh_segs, pls_list) { if (test_bit(NFS_LSEG_VALID, &lseg->pls_flags) && - !test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags) && pnfs_lseg_range_match(&lseg->pls_range, range, strict_iomode)) { ret = pnfs_get_lseg(lseg); |