ceph: don't invalidate page cache when inode is no longer used

ceph_check_caps() invalidate page cache when inode is not used
by any open file. This behaviour is not friendly for workload
that repeatly read files.

Signed-off-by: Yan, Zheng <zyan@redhat.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 27b566874bc1..349315332040 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1655,9 +1655,8 @@ retry_locked:
             !S_ISDIR(inode->i_mode) &&          /* ignore readdir cache */
             ci->i_wrbuffer_ref == 0 &&          /* no dirty pages... */
             inode->i_data.nrpages &&            /* have cached pages */
-            (file_wanted == 0 ||                /* no open files */
-             (revoking & (CEPH_CAP_FILE_CACHE|
-                          CEPH_CAP_FILE_LAZYIO))) && /*  or revoking cache */
+            (revoking & (CEPH_CAP_FILE_CACHE|
+                         CEPH_CAP_FILE_LAZYIO)) && /*  or revoking cache */
             !tried_invalidate) {
                 dout("check_caps trying to invalidate on %p\n", inode);
                 if (try_nonblocking_invalidate(inode) < 0) {