@@ -2512,12 +2512,12 @@ static void kick_flushing_inode_caps(struct ceph_mds_client *mdsc,
/*
* Take references to capabilities we hold, so that we don't release
* them to the MDS prematurely.
- *
- * Protected by i_ceph_lock.
*/
-static void __take_cap_refs(struct ceph_inode_info *ci, int got,
+void ceph_take_cap_refs(struct ceph_inode_info *ci, int got,
bool snap_rwsem_locked)
{
+ lockdep_assert_held(&ci->i_ceph_lock);
+
if (got & CEPH_CAP_PIN)
ci->i_pin_ref++;
if (got & CEPH_CAP_FILE_RD)
@@ -2538,7 +2538,7 @@ static void __take_cap_refs(struct ceph_inode_info *ci, int got,
if (ci->i_wb_ref == 0)
ihold(&ci->vfs_inode);
ci->i_wb_ref++;
- dout("__take_cap_refs %p wb %d -> %d (?)\n",
+ dout("%s %p wb %d -> %d (?)\n", __func__,
&ci->vfs_inode, ci->i_wb_ref-1, ci->i_wb_ref);
}
}
@@ -2664,7 +2664,7 @@ static int try_get_cap_refs(struct inode *inode, int need, int want,
(need & CEPH_CAP_FILE_RD) &&
!(*got & CEPH_CAP_FILE_CACHE))
ceph_disable_fscache_readpage(ci);
- __take_cap_refs(ci, *got, true);
+ ceph_take_cap_refs(ci, *got, true);
ret = 1;
}
} else {
@@ -2896,7 +2896,7 @@ int ceph_get_caps(struct file *filp, int need, int want,
void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps)
{
spin_lock(&ci->i_ceph_lock);
- __take_cap_refs(ci, caps, false);
+ ceph_take_cap_refs(ci, caps, false);
spin_unlock(&ci->i_ceph_lock);
}
@@ -1062,6 +1062,8 @@ extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);
extern struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci,
int mds);
+extern void ceph_take_cap_refs(struct ceph_inode_info *ci, int caps,
+ bool snap_rwsem_locked);
extern void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps);
extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had);
extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
Rename it to ceph_take_cap_refs and make it available to other files. Also replace a comment with a lockdep assertion. Signed-off-by: Jeff Layton <jlayton@kernel.org> --- fs/ceph/caps.c | 12 ++++++------ fs/ceph/super.h | 2 ++ 2 files changed, 8 insertions(+), 6 deletions(-)