diff options
Diffstat (limited to 'fs/xfs/xfs_mount.c')
| -rw-r--r-- | fs/xfs/xfs_mount.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index df578881cb..6fa2f67a74 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -272,7 +272,7 @@ xfs_mount_validate_sb( cmn_err(CE_WARN, "XFS: Only page-sized (%d) or less blocksizes currently work.", PAGE_SIZE); - return XFS_ERROR(EWRONGFS); + return XFS_ERROR(ENOSYS); } return 0; @@ -459,10 +459,22 @@ xfs_readsb(xfs_mount_t *mp) } /* - * Re-read the superblock so that our buffer is correctly sized. - * We only need to do this if sector size on-disk is different. + * We must be able to do sector-sized and sector-aligned IO. + */ + if (sector_size > mp->m_sb.sb_sectsize) { + cmn_err(CE_WARN, + "XFS: device supports only %u byte sectors (not %u)", + sector_size, mp->m_sb.sb_sectsize); + XFS_BUF_UNMANAGE(bp); + xfs_buf_relse(bp); + return XFS_ERROR(ENOSYS); + } + + /* + * If device sector size is smaller than the superblock size, + * re-read the superblock so the buffer is correctly sized. */ - if (sector_size != mp->m_sb.sb_sectsize) { + if (sector_size < mp->m_sb.sb_sectsize) { XFS_BUF_UNMANAGE(bp); xfs_buf_relse(bp); sector_size = mp->m_sb.sb_sectsize; |