diff options
Diffstat (limited to 'fs/xfs/xfs_buf.c')
| -rw-r--r-- | fs/xfs/xfs_buf.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index e2374c503e79..d52d9587b42c 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1722,11 +1722,23 @@ static inline void xfs_configure_buftarg_atomic_writes( struct xfs_buftarg *btp) { + struct xfs_mount *mp = btp->bt_mount; unsigned int min_bytes, max_bytes; min_bytes = bdev_atomic_write_unit_min_bytes(btp->bt_bdev); max_bytes = bdev_atomic_write_unit_max_bytes(btp->bt_bdev); + /* + * Ignore atomic write geometry that is nonsense or doesn't even cover + * a single fsblock. + */ + if (min_bytes > max_bytes || + min_bytes > mp->m_sb.sb_blocksize || + max_bytes < mp->m_sb.sb_blocksize) { + min_bytes = 0; + max_bytes = 0; + } + btp->bt_bdev_awu_min = min_bytes; btp->bt_bdev_awu_max = max_bytes; } |