xfs: remove XFS_ALLOCTYPE_ANY_AG and XFS_ALLOCTYPE_START_AG

Christoph Hellwig · djwong · commit 8d242e932fb7 · 2017-02-17T20:32:10.000-08:00
XFS_ALLOCTYPE_ANY_AG  was only used for the RT allocator and is unused
now, and XFS_ALLOCTYPE_START_AG has been unused for a while.

Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Reviewed-by: Darrick J. Wong &lt;darrick.wong@oracle.com&gt;
Signed-off-by: Darrick J. Wong &lt;darrick.wong@oracle.com&gt;
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
@@ -2664,21 +2664,11 @@ xfs_alloc_vextent(
 		args->agbno = XFS_FSB_TO_AGBNO(mp, args->fsbno);
 		args->type = XFS_ALLOCTYPE_NEAR_BNO;
 		/* FALLTHROUGH */
-	case XFS_ALLOCTYPE_ANY_AG:
-	case XFS_ALLOCTYPE_START_AG:
 	case XFS_ALLOCTYPE_FIRST_AG:
 		/*
 		 * Rotate through the allocation groups looking for a winner.
 		 */
-		if (type == XFS_ALLOCTYPE_ANY_AG) {
-			/*
-			 * Start with the last place we left off.
-			 */
-			args->agno = sagno = (mp->m_agfrotor / rotorstep) %
-					mp->m_sb.sb_agcount;
-			args->type = XFS_ALLOCTYPE_THIS_AG;
-			flags = XFS_ALLOC_FLAG_TRYLOCK;
-		} else if (type == XFS_ALLOCTYPE_FIRST_AG) {
+		if (type == XFS_ALLOCTYPE_FIRST_AG) {
 			/*
 			 * Start with allocation group given by bno.
 			 */
@@ -2687,8 +2677,6 @@ xfs_alloc_vextent(
 			sagno = 0;
 			flags = 0;
 		} else {
-			if (type == XFS_ALLOCTYPE_START_AG)
-				args->type = XFS_ALLOCTYPE_THIS_AG;
 			/*
 			 * Start with the given allocation group.
 			 */
@@ -2756,7 +2744,7 @@ xfs_alloc_vextent(
 			}
 			xfs_perag_put(args->pag);
 		}
-		if (bump_rotor || (type == XFS_ALLOCTYPE_ANY_AG)) {
+		if (bump_rotor) {
 			if (args->agno == sagno)
 				mp->m_agfrotor = (mp->m_agfrotor + 1) %
 					(mp->m_sb.sb_agcount * rotorstep);
diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h
@@ -29,9 +29,7 @@ extern struct workqueue_struct *xfs_alloc_wq;
 /*
  * Freespace allocation types.  Argument to xfs_alloc_[v]extent.
  */
-#define XFS_ALLOCTYPE_ANY_AG	0x01	/* allocate anywhere, use rotor */
 #define XFS_ALLOCTYPE_FIRST_AG	0x02	/* ... start at ag 0 */
-#define XFS_ALLOCTYPE_START_AG	0x04	/* anywhere, start in this a.g. */
 #define XFS_ALLOCTYPE_THIS_AG	0x08	/* anywhere in this a.g. */
 #define XFS_ALLOCTYPE_START_BNO	0x10	/* near this block else anywhere */
 #define XFS_ALLOCTYPE_NEAR_BNO	0x20	/* in this a.g. and near this block */
@@ -41,9 +39,7 @@ extern struct workqueue_struct *xfs_alloc_wq;
 typedef unsigned int xfs_alloctype_t;
 
 #define XFS_ALLOC_TYPES \
-	{ XFS_ALLOCTYPE_ANY_AG,		"ANY_AG" }, \
 	{ XFS_ALLOCTYPE_FIRST_AG,	"FIRST_AG" }, \
-	{ XFS_ALLOCTYPE_START_AG,	"START_AG" }, \
 	{ XFS_ALLOCTYPE_THIS_AG,	"THIS_AG" }, \
 	{ XFS_ALLOCTYPE_START_BNO,	"START_BNO" }, \
 	{ XFS_ALLOCTYPE_NEAR_BNO,	"NEAR_BNO" }, \
