Commit 93afd449 authored by Sage Weil's avatar Sage Weil
Browse files

ceph: only invalidate on check_caps if we actually have pages 



The i_rdcache_gen value only implies we MAY have cached pages; actually
check the mapping to see if it's worth bothering with an invalidate.

Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent 4c32f5dd

fs/ceph/caps.c

+1 −1
Original line number Diff line number Diff line
@@ -1534,7 +1534,7 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags, 
	 */

	if ((!is_delayed || mdsc->stopping) &&

	    ci->i_wrbuffer_ref == 0 &&               /* no dirty pages... */

	    ci->i_rdcache_gen &&                     /* may have cached 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 */