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authorTrond Myklebust <Trond.Myklebust@netapp.com>2008-04-16 00:33:58 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-04-20 00:53:01 +0400
commitfdd1e74c89fe39259a29c494209abad63ff76f82 (patch)
tree7ec3708b7b7badeb20f705cf865afbb9c63b5406 /fs/nfs/direct.c
parent73e3302f60c0e11a0db0b34b903f591139c4f937 (diff)
downloadlinux-fdd1e74c89fe39259a29c494209abad63ff76f82.tar.xz
NFS: Ensure that the read code cleans up properly when rpc_run_task() fails
In the case of readpage() we need to ensure that the pages get unlocked, and that the error is flagged. In the case of O_DIRECT, we need to ensure that the pages are all released. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/direct.c')
-rw-r--r--fs/nfs/direct.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index e44200579c8d..9d9085b93a32 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -229,14 +229,20 @@ static void nfs_direct_complete(struct nfs_direct_req *dreq)
static void nfs_direct_read_result(struct rpc_task *task, void *calldata)
{
struct nfs_read_data *data = calldata;
- struct nfs_direct_req *dreq = (struct nfs_direct_req *) data->req;
- if (nfs_readpage_result(task, data) != 0)
- return;
+ nfs_readpage_result(task, data);
+}
+
+static void nfs_direct_read_release(void *calldata)
+{
+
+ struct nfs_read_data *data = calldata;
+ struct nfs_direct_req *dreq = (struct nfs_direct_req *) data->req;
+ int status = data->task.tk_status;
spin_lock(&dreq->lock);
- if (unlikely(task->tk_status < 0)) {
- dreq->error = task->tk_status;
+ if (unlikely(status < 0)) {
+ dreq->error = status;
spin_unlock(&dreq->lock);
} else {
dreq->count += data->res.count;
@@ -249,11 +255,12 @@ static void nfs_direct_read_result(struct rpc_task *task, void *calldata)
if (put_dreq(dreq))
nfs_direct_complete(dreq);
+ nfs_readdata_release(calldata);
}
static const struct rpc_call_ops nfs_read_direct_ops = {
.rpc_call_done = nfs_direct_read_result,
- .rpc_release = nfs_readdata_release,
+ .rpc_release = nfs_direct_read_release,
};
/*