diff options
| author | John Garry <john.g.garry@oracle.com> | 2024-11-04 16:14:03 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@djwong.org> | 2024-11-04 16:22:10 -0800 |
| commit | 6432c6e723fffd93e5cb65117ff48a3aa734e259 (patch) | |
| tree | 8290fcd3caca0e27b93ebf9b52b4bcb71f03d7e2 /fs/xfs/xfs_buf.c | |
| parent | 9e0933c21c128d6d8ac4d8aae0babaf9a43100b8 (diff) | |
xfs: Support atomic write for statx
Support providing info on atomic write unit min and max for an inode.
For simplicity, currently we limit the min at the FS block size. As for
max, we limit also at FS block size, as there is no current method to
guarantee extent alignment or granularity for regular files.
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/xfs_buf.c')
| -rw-r--r-- | fs/xfs/xfs_buf.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index aa4dbda7b536..e8196f5778e2 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -2115,6 +2115,13 @@ xfs_alloc_buftarg( btp->bt_daxdev = fs_dax_get_by_bdev(btp->bt_bdev, &btp->bt_dax_part_off, mp, ops); + if (bdev_can_atomic_write(btp->bt_bdev)) { + btp->bt_bdev_awu_min = bdev_atomic_write_unit_min_bytes( + btp->bt_bdev); + btp->bt_bdev_awu_max = bdev_atomic_write_unit_max_bytes( + btp->bt_bdev); + } + /* * When allocating the buftargs we have not yet read the super block and * thus don't know the file system sector size yet. |