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| author | David Howells <dhowells@redhat.com> | 2018-10-20 02:57:58 +0300 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-10-24 02:41:08 +0300 |
| commit | 36bb5f490a542f230beb982475b56d79d72033de (patch) | |
| tree | d5c10159dfd62049838b39c310643968b52eb1fb /fs/afs | |
| parent | 35dbfba3111a5ef0663bb89185ce8dfdbef63f8d (diff) | |
| download | linux-36bb5f490a542f230beb982475b56d79d72033de.tar.xz | |
afs: Fix FS.FetchStatus delivery from updating wrong vnode
The FS.FetchStatus reply delivery function was updating inode of the
directory in which a lookup had been done with the status of the looked up
file. This corrupts some of the directory state.
Fixes: 5cf9dd55a0ec ("afs: Prospectively look up extra files when doing a single lookup")
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs')
| -rw-r--r-- | fs/afs/fsclient.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c index 5e3027f21390..f758750e81d8 100644 --- a/fs/afs/fsclient.c +++ b/fs/afs/fsclient.c @@ -2026,7 +2026,7 @@ static int afs_deliver_fs_fetch_status(struct afs_call *call) struct afs_file_status *status = call->reply[1]; struct afs_callback *callback = call->reply[2]; struct afs_volsync *volsync = call->reply[3]; - struct afs_vnode *vnode = call->reply[0]; + struct afs_fid *fid = call->reply[0]; const __be32 *bp; int ret; @@ -2034,21 +2034,15 @@ static int afs_deliver_fs_fetch_status(struct afs_call *call) if (ret < 0) return ret; - _enter("{%llx:%llu}", vnode->fid.vid, vnode->fid.vnode); + _enter("{%llx:%llu}", fid->vid, fid->vnode); /* unmarshall the reply once we've received all of it */ bp = call->buffer; - ret = afs_decode_status(call, &bp, status, vnode, + ret = afs_decode_status(call, &bp, status, NULL, &call->expected_version, NULL); if (ret < 0) return ret; - callback[call->count].version = ntohl(bp[0]); - callback[call->count].expiry = ntohl(bp[1]); - callback[call->count].type = ntohl(bp[2]); - if (vnode) - xdr_decode_AFSCallBack(call, vnode, &bp); - else - bp += 3; + xdr_decode_AFSCallBack_raw(&bp, callback); if (volsync) xdr_decode_AFSVolSync(&bp, volsync); @@ -2089,7 +2083,7 @@ int afs_fs_fetch_status(struct afs_fs_cursor *fc, } call->key = fc->key; - call->reply[0] = NULL; /* vnode for fid[0] */ + call->reply[0] = fid; call->reply[1] = status; call->reply[2] = callback; call->reply[3] = volsync; |