Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...

[pandora-kernel.git] / fs / ceph / snap.c

diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index e6f9bc5..2b88126 100644 (file)
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -431,8 +431,7 @@ static int dup_array(u64 **dst, __le64 *src, int num)
  * Caller must hold snap_rwsem for read (i.e., the realm topology won't
  * change).
  */
-void ceph_queue_cap_snap(struct ceph_inode_info *ci,
-                        struct ceph_snap_context *snapc)
+void ceph_queue_cap_snap(struct ceph_inode_info *ci)
 {
        struct inode *inode = &ci->vfs_inode;
        struct ceph_cap_snap *capsnap;
@@ -451,10 +450,11 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
                   as no new writes are allowed to start when pending, so any
                   writes in progress now were started before the previous
                   cap_snap.  lucky us. */
-               dout("queue_cap_snap %p snapc %p seq %llu used %d"
-                    " already pending\n", inode, snapc, snapc->seq, used);
+               dout("queue_cap_snap %p already pending\n", inode);
                kfree(capsnap);
        } else if (ci->i_wrbuffer_ref_head || (used & CEPH_CAP_FILE_WR)) {
+               struct ceph_snap_context *snapc = ci->i_head_snapc;
+
                igrab(inode);
 
                atomic_set(&capsnap->nref, 1);
@@ -463,7 +463,6 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
                INIT_LIST_HEAD(&capsnap->flushing_item);
 
                capsnap->follows = snapc->seq - 1;
-               capsnap->context = ceph_get_snap_context(snapc);
                capsnap->issued = __ceph_caps_issued(ci, NULL);
                capsnap->dirty = __ceph_caps_dirty(ci);
 
@@ -480,7 +479,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
                   snapshot. */
                capsnap->dirty_pages = ci->i_wrbuffer_ref_head;
                ci->i_wrbuffer_ref_head = 0;
-               ceph_put_snap_context(ci->i_head_snapc);
+               capsnap->context = snapc;
                ci->i_head_snapc = NULL;
                list_add_tail(&capsnap->ci_item, &ci->i_cap_snaps);
 
@@ -522,15 +521,17 @@ int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
        capsnap->ctime = inode->i_ctime;
        capsnap->time_warp_seq = ci->i_time_warp_seq;
        if (capsnap->dirty_pages) {
-               dout("finish_cap_snap %p cap_snap %p snapc %p %llu s=%llu "
+               dout("finish_cap_snap %p cap_snap %p snapc %p %llu %s s=%llu "
                     "still has %d dirty pages\n", inode, capsnap,
                     capsnap->context, capsnap->context->seq,
-                    capsnap->size, capsnap->dirty_pages);
+                    ceph_cap_string(capsnap->dirty), capsnap->size,
+                    capsnap->dirty_pages);
                return 0;
        }
-       dout("finish_cap_snap %p cap_snap %p snapc %p %llu s=%llu clean\n",
+       dout("finish_cap_snap %p cap_snap %p snapc %p %llu %s s=%llu\n",
             inode, capsnap, capsnap->context,
-            capsnap->context->seq, capsnap->size);
+            capsnap->context->seq, ceph_cap_string(capsnap->dirty),
+            capsnap->size);
 
        spin_lock(&mdsc->snap_flush_lock);
        list_add_tail(&ci->i_snap_flush_item, &mdsc->snap_flush_list);
@@ -602,7 +603,7 @@ more:
                                if (lastinode)
                                        iput(lastinode);
                                lastinode = inode;
-                               ceph_queue_cap_snap(ci, realm->cached_context);
+                               ceph_queue_cap_snap(ci);
                                spin_lock(&realm->inodes_with_caps_lock);
                        }
                        spin_unlock(&realm->inodes_with_caps_lock);
@@ -824,8 +825,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
                        spin_unlock(&realm->inodes_with_caps_lock);
                        spin_unlock(&inode->i_lock);
 
-                       ceph_queue_cap_snap(ci,
-                                           ci->i_snap_realm->cached_context);
+                       ceph_queue_cap_snap(ci);
 
                        iput(inode);
                        continue;