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-rw-r--r--fs/xfs/xfs_file.c20
1 files changed, 1 insertions, 19 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index e612a0233710..62649ccdbb4d 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -714,24 +714,11 @@ xfs_file_dax_write(
struct address_space *mapping = iocb->ki_filp->f_mapping;
struct inode *inode = mapping->host;
struct xfs_inode *ip = XFS_I(inode);
- struct xfs_mount *mp = ip->i_mount;
ssize_t ret = 0;
- int unaligned_io = 0;
- int iolock;
+ int iolock = XFS_IOLOCK_EXCL;
struct iov_iter data;
- /* "unaligned" here means not aligned to a filesystem block */
- if ((iocb->ki_pos & mp->m_blockmask) ||
- ((iocb->ki_pos + iov_iter_count(from)) & mp->m_blockmask)) {
- unaligned_io = 1;
- iolock = XFS_IOLOCK_EXCL;
- } else if (mapping->nrpages) {
- iolock = XFS_IOLOCK_EXCL;
- } else {
- iolock = XFS_IOLOCK_SHARED;
- }
xfs_rw_ilock(ip, iolock);
-
ret = xfs_file_aio_write_checks(iocb, from, &iolock);
if (ret)
goto out;
@@ -758,11 +745,6 @@ xfs_file_dax_write(
WARN_ON_ONCE(ret);
}
- if (iolock == XFS_IOLOCK_EXCL && !unaligned_io) {
- xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL);
- iolock = XFS_IOLOCK_SHARED;
- }
-
trace_xfs_file_dax_write(ip, iov_iter_count(from), iocb->ki_pos);
data = *from;