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authorSage Weil <sage@newdream.net>2010-07-22 13:49:08 -0700
committerSage Weil <sage@newdream.net>2010-07-23 10:02:05 -0700
commit252af5214682191e34e57204e1a31924fb82c207 (patch)
tree56834ab133d2b466b35dfff0abd4db71a9f658ad /fs
parenta0dff78dab0ff8d78bd5c9e33c105cf1292f2282 (diff)
ceph: fix d_release dop for snapdir, snapped dentries
We need to set the d_release dop for snapdir and snapped dentries so that the ceph_dentry_info struct gets released. We also use the dcache to cache readdir results when possible, which only works if we know when dentries are dropped from the cache. Since we don't use the dcache for readdir in the hidden snapdir, avoid that case in ceph_dentry_release. Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/dir.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index ea36ba9960d3..f94ed3c7f6a5 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1014,18 +1014,22 @@ out_touch:
/*
* When a dentry is released, clear the dir I_COMPLETE if it was part
- * of the current dir gen.
+ * of the current dir gen or if this is in the snapshot namespace.
*/
static void ceph_dentry_release(struct dentry *dentry)
{
struct ceph_dentry_info *di = ceph_dentry(dentry);
struct inode *parent_inode = dentry->d_parent->d_inode;
+ u64 snapid = ceph_snap(parent_inode);
- if (parent_inode) {
+ dout("dentry_release %p parent %p\n", dentry, parent_inode);
+
+ if (parent_inode && snapid != CEPH_SNAPDIR) {
struct ceph_inode_info *ci = ceph_inode(parent_inode);
spin_lock(&parent_inode->i_lock);
- if (ci->i_shared_gen == di->lease_shared_gen) {
+ if (ci->i_shared_gen == di->lease_shared_gen ||
+ snapid <= CEPH_MAXSNAP) {
dout(" clearing %p complete (d_release)\n",
parent_inode);
ci->i_ceph_flags &= ~CEPH_I_COMPLETE;
@@ -1242,7 +1246,9 @@ struct dentry_operations ceph_dentry_ops = {
struct dentry_operations ceph_snapdir_dentry_ops = {
.d_revalidate = ceph_snapdir_d_revalidate,
+ .d_release = ceph_dentry_release,
};
struct dentry_operations ceph_snap_dentry_ops = {
+ .d_release = ceph_dentry_release,
};

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