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| author |   David Howells <dhowells@redhat.com> | 2018-04-06 14:17:25 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-04-09 21:54:48 +0100 |
| commit | 63a4681ff39cb63314b8ff41319e70fb0e606ed2 (patch) | |
| tree | 0b60198db6c9a21efd1f1dfda2a292ad63df38e8 /fs/afs/inode.c | |
| parent | afs: Adjust the directory XDR structures (diff) | |
| download | linux-dev-63a4681ff39cb63314b8ff41319e70fb0e606ed2.tar.xz linux-dev-63a4681ff39cb63314b8ff41319e70fb0e606ed2.zip | |
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.c | 7 |
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; } |