Commit 1fd8159e authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

xfs: export zoned geometry via XFS_FSOP_GEOM 



Export the zoned geometry information so that userspace can query it.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatar"Darrick J. Wong" <djwong@kernel.org>
parent bdc03eb5

fs/xfs/libxfs/xfs_fs.h

+4 −1
Original line number Diff line number Diff line
@@ -189,7 +189,9 @@ struct xfs_fsop_geom { 
	uint32_t	checked;	/* o: checked fs & rt metadata	*/

	__u32		rgextents;	/* rt extents in a realtime group */

	__u32		rgcount;	/* number of realtime groups	*/

	__u64		reserved[16];	/* reserved space		*/

	__u64		rtstart;	/* start of internal rt section */

	__u64		rtreserved;	/* RT (zoned) reserved blocks	*/

	__u64		reserved[14];	/* reserved space		*/

};



#define XFS_FSOP_GEOM_SICK_COUNTERS	(1 << 0)  /* summary counters */
@@ -247,6 +249,7 @@ typedef struct xfs_fsop_resblks { 
#define XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE (1 << 24) /* exchange range */

#define XFS_FSOP_GEOM_FLAGS_PARENT	(1 << 25) /* linux parent pointers */

#define XFS_FSOP_GEOM_FLAGS_METADIR	(1 << 26) /* metadata directories */

#define XFS_FSOP_GEOM_FLAGS_ZONED	(1 << 27) /* zoned rt device */



/*

 * Minimum and maximum sizes need for growth checks.

fs/xfs/libxfs/xfs_sb.c

+6 −0
Original line number Diff line number Diff line
@@ -1569,6 +1569,8 @@ xfs_fs_geometry( 
		geo->flags |= XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE;

	if (xfs_has_metadir(mp))

		geo->flags |= XFS_FSOP_GEOM_FLAGS_METADIR;

	if (xfs_has_zoned(mp))

		geo->flags |= XFS_FSOP_GEOM_FLAGS_ZONED;

	geo->rtsectsize = sbp->sb_blocksize;

	geo->dirblocksize = xfs_dir2_dirblock_bytes(sbp);
@@ -1589,6 +1591,10 @@ xfs_fs_geometry( 
		geo->rgcount = sbp->sb_rgcount;

		geo->rgextents = sbp->sb_rgextents;

	}

	if (xfs_has_zoned(mp)) {

		geo->rtstart = sbp->sb_rtstart;

		geo->rtreserved = sbp->sb_rtreserved;

	}

}



/* Read a secondary superblock. */