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authorDavid Howells <dhowells@redhat.com>2018-04-06 16:17:25 +0300
committerDavid Howells <dhowells@redhat.com>2018-04-09 23:54:48 +0300
commit63a4681ff39cb63314b8ff41319e70fb0e606ed2 (patch)
tree0b60198db6c9a21efd1f1dfda2a292ad63df38e8 /fs/afs/inode.c
parent0031763698d197d779fcafe5685f6e7818b70d32 (diff)
downloadlinux-63a4681ff39cb63314b8ff41319e70fb0e606ed2.tar.xz
afs: Locally edit directory data for mkdir/create/unlink/...
Locally edit the contents of an AFS directory upon a successful inode operation that modifies that directory (such as mkdir, create and unlink) so that we can avoid the current practice of re-downloading the directory after each change. This is viable provided that the directory version number we get back from the modifying RPC op is exactly incremented by 1 from what we had previously. The data in the directory contents is in a defined format that we have to parse locally to perform lookups and readdir, so modifying isn't a problem. If the edit fails, we just clear the VALID flag on the directory and it will be reloaded next time it is needed. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/inode.c')
-rw-r--r--fs/afs/inode.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 69bcfb82dd69..3808dcbbac6d 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -395,8 +395,11 @@ int afs_validate(struct afs_vnode *vnode, struct key *key)
if (test_bit(AFS_VNODE_CB_PROMISED, &vnode->flags)) {
if (vnode->cb_s_break != vnode->cb_interest->server->cb_s_break) {
vnode->cb_s_break = vnode->cb_interest->server->cb_s_break;
- } else if (test_bit(AFS_VNODE_DIR_VALID, &vnode->flags) &&
- !test_bit(AFS_VNODE_ZAP_DATA, &vnode->flags) &&
+ } else if (vnode->status.type == AFS_FTYPE_DIR &&
+ test_bit(AFS_VNODE_DIR_VALID, &vnode->flags) &&
+ vnode->cb_expires_at - 10 > now) {
+ valid = true;
+ } else if (!test_bit(AFS_VNODE_ZAP_DATA, &vnode->flags) &&
vnode->cb_expires_at - 10 > now) {
valid = true;
}