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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2023-09-04 19:34:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-06 15:56:30 +0300 |
| commit | 4d98038e5bd939bd13cc4e602dfe60cd5110efa8 (patch) | |
| tree | 1d4d0f2658dc0440e31b7adbeef47b0f54cb88c5 /fs/nfs | |
| parent | f16fd0b11f0f4d41846b5102b1656ea1fc9ac7a0 (diff) | |
| download | linux-4d98038e5bd939bd13cc4e602dfe60cd5110efa8.tar.xz | |
NFS: Fix O_DIRECT locking issues
[ 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@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/direct.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index d71762f32b6c..449d248fc1ec 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; |