Commit 919819f5 authored by Chandan Babu R's avatar Chandan Babu R
Browse files

xfs: Introduce XFS_SB_FEAT_INCOMPAT_NREXT64 and associated per-fs feature bit 



XFS_SB_FEAT_INCOMPAT_NREXT64 incompat feature bit will be set on filesystems
which support large per-inode extent counters. This commit defines the new
incompat feature bit and the corresponding per-fs feature bit (along with
inline functions to work on it).

Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Signed-off-by: default avatarChandan Babu R <chandan.babu@oracle.com>
parent 755c38ff

fs/xfs/libxfs/xfs_format.h

+1 −0
Original line number Diff line number Diff line
@@ -372,6 +372,7 @@ xfs_sb_has_ro_compat_feature( 
#define XFS_SB_FEAT_INCOMPAT_META_UUID	(1 << 2)	/* metadata UUID */

#define XFS_SB_FEAT_INCOMPAT_BIGTIME	(1 << 3)	/* large timestamps */

#define XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR (1 << 4)	/* needs xfs_repair */

#define XFS_SB_FEAT_INCOMPAT_NREXT64	(1 << 5)	/* large extent counters */

#define XFS_SB_FEAT_INCOMPAT_ALL \

		(XFS_SB_FEAT_INCOMPAT_FTYPE|	\

		 XFS_SB_FEAT_INCOMPAT_SPINODES|	\

fs/xfs/libxfs/xfs_sb.c

+3 −0
Original line number Diff line number Diff line
@@ -124,6 +124,9 @@ xfs_sb_version_to_features( 
		features |= XFS_FEAT_BIGTIME;

	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR)

		features |= XFS_FEAT_NEEDSREPAIR;

	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_NREXT64)

		features |= XFS_FEAT_NREXT64;



	return features;

}

fs/xfs/xfs_mount.h

+2 −0
Original line number Diff line number Diff line
@@ -276,6 +276,7 @@ typedef struct xfs_mount { 
#define XFS_FEAT_INOBTCNT	(1ULL << 23)	/* inobt block counts */

#define XFS_FEAT_BIGTIME	(1ULL << 24)	/* large timestamps */

#define XFS_FEAT_NEEDSREPAIR	(1ULL << 25)	/* needs xfs_repair */

#define XFS_FEAT_NREXT64	(1ULL << 26)	/* large extent counters */



/* Mount features */

#define XFS_FEAT_NOATTR2	(1ULL << 48)	/* disable attr2 creation */
@@ -338,6 +339,7 @@ __XFS_HAS_FEAT(realtime, REALTIME) 
__XFS_HAS_FEAT(inobtcounts, INOBTCNT)

__XFS_HAS_FEAT(bigtime, BIGTIME)

__XFS_HAS_FEAT(needsrepair, NEEDSREPAIR)

__XFS_HAS_FEAT(large_extent_counts, NREXT64)



/*

 * Mount features