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Commit e7927e87 authored by Dave Chinner's avatar Dave Chinner Committed by Ben Myers
Browse files

xfs: add fsgeom flag for v5 superblock support. 



Currently userspace has no way of determining that a filesystem is
CRC enabled. Add a flag to the XFS_IOC_FSGEOMETRY ioctl output to
indicate that the filesystem has v5 superblock support enabled.
This will allow xfs_info to correctly report the state of the
filesystem.

Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
Reviewed-by: default avatarEric Sandeen <sandeen@redhat.com>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
Signed-off-by: default avatarBen Myers <bpm@sgi.com>

(cherry picked from commit 74137fff)
parent 1de09d1a

fs/xfs/xfs_fs.h

+1 −0
Original line number Diff line number Diff line
@@ -236,6 +236,7 @@ typedef struct xfs_fsop_resblks { 
#define XFS_FSOP_GEOM_FLAGS_PROJID32	0x0800  /* 32-bit project IDs	*/

#define XFS_FSOP_GEOM_FLAGS_DIRV2CI	0x1000	/* ASCII only CI names	*/

#define XFS_FSOP_GEOM_FLAGS_LAZYSB	0x4000	/* lazy superblock counters */

#define XFS_FSOP_GEOM_FLAGS_V5SB	0x8000	/* version 5 superblock */





/*

fs/xfs/xfs_fsops.c

+3 −1
Original line number Diff line number Diff line
@@ -99,7 +99,9 @@ xfs_fs_geometry( 
			(xfs_sb_version_hasattr2(&mp->m_sb) ?

				XFS_FSOP_GEOM_FLAGS_ATTR2 : 0) |

			(xfs_sb_version_hasprojid32bit(&mp->m_sb) ?

				XFS_FSOP_GEOM_FLAGS_PROJID32 : 0);

				XFS_FSOP_GEOM_FLAGS_PROJID32 : 0) |

			(xfs_sb_version_hascrc(&mp->m_sb) ?

				XFS_FSOP_GEOM_FLAGS_V5SB : 0);

		geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?

				mp->m_sb.sb_logsectsize : BBSIZE;

		geo->rtsectsize = mp->m_sb.sb_blocksize;