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NFS: Fix two bugs in the O_DIRECT write code 

Do not flag an error if the COMMIT call fails and we decide to resend the
writes. Let the resend flag the error if it fails.

If a write has failed, then nfs_direct_write_result should not attempt to
send a commit. It should just exit asap and return the error to the user.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Trond Myklebust 2007-04-14 19:11:52 -04:00 committed by Linus Torvalds
parent e1552e1998
commit 60fa3f769f
1 changed files with 8 additions and 5 deletions
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13
fs/nfs/direct.c
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@ -432,10 +432,10 @@ static void nfs_direct_commit_result(struct rpc_task *task, void *calldata)
if (NFS_PROTO(data->inode)->commit_done(task, data) != 0)
return;
if (unlikely(task->tk_status < 0)) {
dreq->error = task->tk_status;
dprintk("NFS: %5u commit failed with error %d.\n",
task->tk_pid, task->tk_status);
dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
}
if (memcmp(&dreq->verf, &data->verf, sizeof(data->verf))) {
} else if (memcmp(&dreq->verf, &data->verf, sizeof(data->verf))) {
dprintk("NFS: %5u commit verify failed\n", task->tk_pid);
dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
}
@ -531,9 +531,12 @@ static void nfs_direct_write_result(struct rpc_task *task, void *calldata)
spin_lock(&dreq->lock);
if (unlikely(status < 0)) {
dreq->error = status;
if (unlikely(dreq->error != 0))
goto out_unlock;
if (unlikely(status < 0)) {
/* An error has occured, so we should not commit */
dreq->flags = 0;
dreq->error = status;
}
dreq->count += data->res.count;