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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-03-25 23:58:53 +0100 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-03-27 17:39:37 +0100 |
| commit | a0815d556d1cfb686b46995f86fb081f623fa720 (patch) | |
| tree | fd6edd1d18bc1a6633a7e968089d089dd4aec6cd | |
| parent | NFSv4: Truncating file opens should also sync O_DIRECT writes (diff) | |
| download | linux-a0815d556d1cfb686b46995f86fb081f623fa720.tar.xz linux-a0815d556d1cfb686b46995f86fb081f623fa720.zip | |
NFSv4.1/pnfs: Ensure that writes respect the O_SYNC flag when doing O_DIRECT
If the caller does not specify the O_SYNC flag, then it is legitimate
to return from O_DIRECT without doing a pNFS layoutcommit operation.
However if the file is opened O_DIRECT|O_SYNC then we'd better get it
right.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| -rw-r--r-- | fs/nfs/direct.c | 1 | ||||
| -rw-r--r-- | fs/nfs/file.c | 1 | ||||
| -rw-r--r-- | fs/nfs/nfs4file.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 51f617e45fd1..018a06a062bd 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -1034,6 +1034,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter, if (i_size_read(inode) < iocb->ki_pos) i_size_write(inode, iocb->ki_pos); spin_unlock(&inode->i_lock); + generic_write_sync(file, pos, result); } } nfs_direct_req_release(dreq); diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 6959cb76744b..28228f381266 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -281,6 +281,7 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) trace_nfs_fsync_enter(inode); + nfs_inode_dio_wait(inode); do { ret = filemap_write_and_wait_range(inode->i_mapping, start, end); if (ret != 0) diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 8da5409e6f1a..befe7a2c6284 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -104,6 +104,7 @@ nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) trace_nfs_fsync_enter(inode); + nfs_inode_dio_wait(inode); do { ret = filemap_write_and_wait_range(inode->i_mapping, start, end); if (ret != 0) |