6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
[ Upstream commit 7c6339322ce0c6128acbe36aacc1eeb986dd7bf1 ]
The dreq fields are protected by the dreq->lock.
Fixes: 954998b60caa ("NFS: Fix error handling for O_DIRECT write scheduling")
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/nfs/direct.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index d71762f32b6c4..449d248fc1ec7 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -555,7 +555,7 @@ static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
/* Bump the transmission count */
req->wb_nio++;
if (!nfs_pageio_add_request(&desc, req)) {
- spin_lock(&cinfo.inode->i_lock);
+ spin_lock(&dreq->lock);
if (dreq->error < 0) {
desc.pg_error = dreq->error;
} else if (desc.pg_error != -EAGAIN) {
@@ -565,7 +565,7 @@ static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
dreq->error = desc.pg_error;
} else
dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
- spin_unlock(&cinfo.inode->i_lock);
+ spin_unlock(&dreq->lock);
break;
}
nfs_release_request(req);
@@ -875,9 +875,9 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
/* If the error is soft, defer remaining requests */
nfs_init_cinfo_from_dreq(&cinfo, dreq);
- spin_lock(&cinfo.inode->i_lock);
+ spin_lock(&dreq->lock);
dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
- spin_unlock(&cinfo.inode->i_lock);
+ spin_unlock(&dreq->lock);
nfs_unlock_request(req);
nfs_mark_request_commit(req, NULL, &cinfo, 0);
desc.pg_error = 0;
--
2.40.1
