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authorJeff Layton <jlayton@poochiereds.net>2016-05-17 12:28:39 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-05-17 15:48:09 -0400
commitee26bdd680aa10df628499fe95a7b88345574248 (patch)
treedd2339019779eed74a06419c65dd563ee9359cd9 /fs/nfs
parent446ca2195303c550b1cec7dcf9a478910dc84672 (diff)
downloadlinux-ee26bdd680aa10df628499fe95a7b88345574248.tar.bz2
pnfs: don't merge new ff lsegs with ones that have LAYOUTRETURN bit set
Otherwise, we'll end up returning layouts that we've just received if the client issues a new LAYOUTGET prior to the LAYOUTRETURN. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 2911ceda8cd9..3bac2094c175 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -299,6 +299,8 @@ ff_lseg_merge(struct pnfs_layout_segment *new,
{
u64 new_end, old_end;
+ if (test_bit(NFS_LSEG_LAYOUTRETURN, &old->pls_flags))
+ return false;
if (new->pls_range.iomode != old->pls_range.iomode)
return false;
old_end = pnfs_calc_offset_end(old->pls_range.offset,
@@ -319,8 +321,6 @@ ff_lseg_merge(struct pnfs_layout_segment *new,
new_end);
if (test_bit(NFS_LSEG_ROC, &old->pls_flags))
set_bit(NFS_LSEG_ROC, &new->pls_flags);
- if (test_bit(NFS_LSEG_LAYOUTRETURN, &old->pls_flags))
- set_bit(NFS_LSEG_LAYOUTRETURN, &new->pls_flags);
return true;
}