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Commit 502a4e72 authored by Brian Foster's avatar Brian Foster Committed by Dave Chinner
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xfs: add fs geometry bit for sparse inode chunks 



Define an fs geometry bit for sparse inode chunks such that the
characteristic of the fs can be identified by userspace.

Signed-off-by: default avatarBrian Foster <bfoster@redhat.com>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent e5376fc1

fs/xfs/libxfs/xfs_fs.h

+1 −0
Original line number Diff line number Diff line
@@ -239,6 +239,7 @@ typedef struct xfs_fsop_resblks { 
#define XFS_FSOP_GEOM_FLAGS_V5SB	0x8000	/* version 5 superblock */

#define XFS_FSOP_GEOM_FLAGS_FTYPE	0x10000	/* inode directory types */

#define XFS_FSOP_GEOM_FLAGS_FINOBT	0x20000	/* free inode btree */

#define XFS_FSOP_GEOM_FLAGS_SPINODES	0x40000	/* sparse inode chunks	*/



/*

 * Minimum and maximum sizes need for growth checks.

fs/xfs/xfs_fsops.c

+3 −1
Original line number Diff line number Diff line
@@ -101,7 +101,9 @@ xfs_fs_geometry( 
			(xfs_sb_version_hasftype(&mp->m_sb) ?

				XFS_FSOP_GEOM_FLAGS_FTYPE : 0) |

			(xfs_sb_version_hasfinobt(&mp->m_sb) ?

				XFS_FSOP_GEOM_FLAGS_FINOBT : 0);

				XFS_FSOP_GEOM_FLAGS_FINOBT : 0) |

			(xfs_sb_version_hassparseinodes(&mp->m_sb) ?

				XFS_FSOP_GEOM_FLAGS_SPINODES : 0);

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

				mp->m_sb.sb_logsectsize : BBSIZE;

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