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afs: Fix unlink to handle YFS.RemoveFile2 better

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Make use of the status update for the target file that the YFS.RemoveFile2
RPC op returns to correctly update the vnode as to whether the file was
actually deleted or just had nlink reduced.

Fixes: 30062bd13e ("afs: Implement YFS support in the fs client")
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2019-05-14 12:29:11 +01:00
parent 61c347ba55
commit a38a75581e
6 changed files with 33 additions and 28 deletions
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18
fs/afs/inode.c
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@@ -23,6 +23,7 @@
#include <linux/namei.h>
#include <linux/iversion.h>
#include "internal.h"
#include "afs_fs.h"
static const struct inode_operations afs_symlink_inode_operations = {
.get_link = page_get_link,
@@ -271,13 +272,22 @@ void afs_vnode_commit_status(struct afs_fs_cursor *fc,
write_seqlock(&vnode->cb_lock);
afs_apply_status(fc, vnode, scb, expected_version);
if (scb->have_cb)
afs_apply_callback(fc, vnode, scb, cb_break);
if (scb->have_error) {
if (scb->status.abort_code == VNOVNODE) {
set_bit(AFS_VNODE_DELETED, &vnode->flags);
clear_nlink(&vnode->vfs_inode);
__afs_break_callback(vnode);
}
} else {
if (scb->have_status)
afs_apply_status(fc, vnode, scb, expected_version);
if (scb->have_cb)
afs_apply_callback(fc, vnode, scb, cb_break);
}
write_sequnlock(&vnode->cb_lock);
if (fc->ac.error == 0)
if (fc->ac.error == 0 && scb->have_status)
afs_cache_permit(vnode, fc->key, cb_break, scb);
}