diff mbox

[15/25] xfs: remove xfs_bmalloca firstblock field

Message ID 20180703172319.24509-16-bfoster@redhat.com (mailing list archive)
State Accepted
Headers show

Commit Message

Brian Foster July 3, 2018, 5:23 p.m. UTC
The xfs_bmalloca.firstblock field carries the firstblock value from
the transaction into the bmap infrastructure. It's initialized in
one place from ->t_firstblock, so drop the field and access
->t_firstblock directly throughout the bmap code.

Signed-off-by: Brian Foster <bfoster@redhat.com>
---
 fs/xfs/libxfs/xfs_bmap.c | 44 +++++++++++++++++++++-------------------
 fs/xfs/libxfs/xfs_bmap.h |  1 -
 2 files changed, 23 insertions(+), 22 deletions(-)

Comments

Darrick J. Wong July 4, 2018, 12:52 a.m. UTC | #1
On Tue, Jul 03, 2018 at 01:23:09PM -0400, Brian Foster wrote:
> The xfs_bmalloca.firstblock field carries the firstblock value from
> the transaction into the bmap infrastructure. It's initialized in
> one place from ->t_firstblock, so drop the field and access
> ->t_firstblock directly throughout the bmap code.
> 
> Signed-off-by: Brian Foster <bfoster@redhat.com>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
>  fs/xfs/libxfs/xfs_bmap.c | 44 +++++++++++++++++++++-------------------
>  fs/xfs/libxfs/xfs_bmap.h |  1 -
>  2 files changed, 23 insertions(+), 22 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index 43157e5ff46b..bd1273546b54 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
> @@ -1794,7 +1794,7 @@ xfs_bmap_add_extent_delay_real(
>  
>  		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
>  			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
> -					bma->firstblock, &bma->cur, 1,
> +					&bma->tp->t_firstblock, &bma->cur, 1,
>  					&tmp_rval, whichfork);
>  			rval |= tmp_rval;
>  			if (error)
> @@ -1872,7 +1872,7 @@ xfs_bmap_add_extent_delay_real(
>  
>  		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
>  			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
> -				bma->firstblock, &bma->cur, 1, &tmp_rval,
> +				&bma->tp->t_firstblock, &bma->cur, 1, &tmp_rval,
>  				whichfork);
>  			rval |= tmp_rval;
>  			if (error)
> @@ -1953,7 +1953,7 @@ xfs_bmap_add_extent_delay_real(
>  
>  		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
>  			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
> -					bma->firstblock, &bma->cur, 1,
> +					&bma->tp->t_firstblock, &bma->cur, 1,
>  					&tmp_rval, whichfork);
>  			rval |= tmp_rval;
>  			if (error)
> @@ -1991,7 +1991,7 @@ xfs_bmap_add_extent_delay_real(
>  
>  		ASSERT(bma->cur == NULL);
>  		error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
> -				bma->firstblock, &bma->cur, da_old > 0,
> +				&bma->tp->t_firstblock, &bma->cur, da_old > 0,
>  				&tmp_logflags, whichfork);
>  		bma->logflags |= tmp_logflags;
>  		if (error)
> @@ -3056,10 +3056,11 @@ xfs_bmap_adjacent(
>  		XFS_FSB_TO_AGBNO(mp, x) < mp->m_sb.sb_agblocks)
>  
>  	mp = ap->ip->i_mount;
> -	nullfb = *ap->firstblock == NULLFSBLOCK;
> +	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;
>  	rt = XFS_IS_REALTIME_INODE(ap->ip) &&
>  		xfs_alloc_is_userdata(ap->datatype);
> -	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock);
> +	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp,
> +							ap->tp->t_firstblock);
>  	/*
>  	 * If allocating at eof, and there's a previous real block,
>  	 * try to use its last block as our starting point.
> @@ -3417,8 +3418,9 @@ xfs_bmap_btalloc(
>  	}
>  
>  
> -	nullfb = *ap->firstblock == NULLFSBLOCK;
> -	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock);
> +	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;
> +	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp,
> +							ap->tp->t_firstblock);
>  	if (nullfb) {
>  		if (xfs_alloc_is_userdata(ap->datatype) &&
>  		    xfs_inode_is_filestream(ap->ip)) {
> @@ -3429,7 +3431,7 @@ xfs_bmap_btalloc(
>  			ap->blkno = XFS_INO_TO_FSB(mp, ap->ip->i_ino);
>  		}
>  	} else
> -		ap->blkno = *ap->firstblock;
> +		ap->blkno = ap->tp->t_firstblock;
>  
>  	xfs_bmap_adjacent(ap);
>  
> @@ -3440,7 +3442,7 @@ xfs_bmap_btalloc(
>  	if (nullfb || XFS_FSB_TO_AGNO(mp, ap->blkno) == fb_agno)
>  		;
>  	else
> -		ap->blkno = *ap->firstblock;
> +		ap->blkno = ap->tp->t_firstblock;
>  	/*
>  	 * Normal allocation, done through xfs_alloc_vextent.
>  	 */
> @@ -3453,7 +3455,7 @@ xfs_bmap_btalloc(
>  
>  	/* Trim the allocation back to the maximum an AG can fit. */
>  	args.maxlen = min(ap->length, mp->m_ag_max_usable);
> -	args.firstblock = *ap->firstblock;
> +	args.firstblock = ap->tp->t_firstblock;
>  	blen = 0;
>  	if (nullfb) {
>  		/*
> @@ -3602,13 +3604,13 @@ xfs_bmap_btalloc(
>  		 * check the allocation happened at the same or higher AG than
>  		 * the first block that was allocated.
>  		 */
> -		ASSERT(*ap->firstblock == NULLFSBLOCK ||
> -		       XFS_FSB_TO_AGNO(mp, *ap->firstblock) <=
> +		ASSERT(ap->tp->t_firstblock == NULLFSBLOCK ||
> +		       XFS_FSB_TO_AGNO(mp, ap->tp->t_firstblock) <=
>  		       XFS_FSB_TO_AGNO(mp, args.fsbno));
>  
>  		ap->blkno = args.fsbno;
> -		if (*ap->firstblock == NULLFSBLOCK)
> -			*ap->firstblock = args.fsbno;
> +		if (ap->tp->t_firstblock == NULLFSBLOCK)
> +			ap->tp->t_firstblock = args.fsbno;
>  		ASSERT(nullfb || fb_agno <= args.agno);
>  		ap->length = args.len;
>  		/*
> @@ -4065,12 +4067,12 @@ xfs_bmapi_allocate(
>  		return error;
>  
>  	if (bma->cur)
> -		bma->cur->bc_private.b.firstblock = *bma->firstblock;
> +		bma->cur->bc_private.b.firstblock = bma->tp->t_firstblock;
>  	if (bma->blkno == NULLFSBLOCK)
>  		return 0;
>  	if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur) {
>  		bma->cur = xfs_bmbt_init_cursor(mp, bma->tp, bma->ip, whichfork);
> -		bma->cur->bc_private.b.firstblock = *bma->firstblock;
> +		bma->cur->bc_private.b.firstblock = bma->tp->t_firstblock;
>  	}
>  	/*
>  	 * Bump the number of extents we've allocated
> @@ -4106,7 +4108,8 @@ xfs_bmapi_allocate(
>  	else
>  		error = xfs_bmap_add_extent_hole_real(bma->tp, bma->ip,
>  				whichfork, &bma->icur, &bma->cur, &bma->got,
> -				bma->firstblock, &bma->logflags, bma->flags);
> +				&bma->tp->t_firstblock, &bma->logflags,
> +				bma->flags);
>  
>  	bma->logflags |= tmp_logflags;
>  	if (error)
> @@ -4157,7 +4160,7 @@ xfs_bmapi_convert_unwritten(
>  	if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur) {
>  		bma->cur = xfs_bmbt_init_cursor(bma->ip->i_mount, bma->tp,
>  					bma->ip, whichfork);
> -		bma->cur->bc_private.b.firstblock = *bma->firstblock;
> +		bma->cur->bc_private.b.firstblock = bma->tp->t_firstblock;
>  	}
>  	mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN)
>  				? XFS_EXT_NORM : XFS_EXT_UNWRITTEN;
> @@ -4174,7 +4177,7 @@ xfs_bmapi_convert_unwritten(
>  	}
>  
>  	error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, whichfork,
> -			&bma->icur, &bma->cur, mval, bma->firstblock,
> +			&bma->icur, &bma->cur, mval, &bma->tp->t_firstblock,
>  			&tmp_logflags);
>  	/*
>  	 * Log the inode core unconditionally in the unwritten extent conversion
> @@ -4315,7 +4318,6 @@ xfs_bmapi_write(
>  	bma.ip = ip;
>  	bma.total = total;
>  	bma.datatype = 0;
> -	bma.firstblock = &tp->t_firstblock;
>  	ASSERT(!tp || tp->t_dfops);
>  
>  	while (bno < end && n < *nmap) {
> diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
> index fa839679ecb6..bbd641ae3261 100644
> --- a/fs/xfs/libxfs/xfs_bmap.h
> +++ b/fs/xfs/libxfs/xfs_bmap.h
> @@ -19,7 +19,6 @@ extern kmem_zone_t	*xfs_bmap_free_item_zone;
>   * Argument structure for xfs_bmap_alloc.
>   */
>  struct xfs_bmalloca {
> -	xfs_fsblock_t		*firstblock; /* i/o first block allocated */
>  	struct xfs_trans	*tp;	/* transaction pointer */
>  	struct xfs_inode	*ip;	/* incore inode pointer */
>  	struct xfs_bmbt_irec	prev;	/* extent before the new one */
> -- 
> 2.17.1
> 
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diff mbox

Patch

diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 43157e5ff46b..bd1273546b54 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -1794,7 +1794,7 @@  xfs_bmap_add_extent_delay_real(
 
 		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
 			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
-					bma->firstblock, &bma->cur, 1,
+					&bma->tp->t_firstblock, &bma->cur, 1,
 					&tmp_rval, whichfork);
 			rval |= tmp_rval;
 			if (error)
@@ -1872,7 +1872,7 @@  xfs_bmap_add_extent_delay_real(
 
 		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
 			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
-				bma->firstblock, &bma->cur, 1, &tmp_rval,
+				&bma->tp->t_firstblock, &bma->cur, 1, &tmp_rval,
 				whichfork);
 			rval |= tmp_rval;
 			if (error)
@@ -1953,7 +1953,7 @@  xfs_bmap_add_extent_delay_real(
 
 		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
 			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
-					bma->firstblock, &bma->cur, 1,
+					&bma->tp->t_firstblock, &bma->cur, 1,
 					&tmp_rval, whichfork);
 			rval |= tmp_rval;
 			if (error)
@@ -1991,7 +1991,7 @@  xfs_bmap_add_extent_delay_real(
 
 		ASSERT(bma->cur == NULL);
 		error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
-				bma->firstblock, &bma->cur, da_old > 0,
+				&bma->tp->t_firstblock, &bma->cur, da_old > 0,
 				&tmp_logflags, whichfork);
 		bma->logflags |= tmp_logflags;
 		if (error)
@@ -3056,10 +3056,11 @@  xfs_bmap_adjacent(
 		XFS_FSB_TO_AGBNO(mp, x) < mp->m_sb.sb_agblocks)
 
 	mp = ap->ip->i_mount;
-	nullfb = *ap->firstblock == NULLFSBLOCK;
+	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;
 	rt = XFS_IS_REALTIME_INODE(ap->ip) &&
 		xfs_alloc_is_userdata(ap->datatype);
-	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock);
+	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp,
+							ap->tp->t_firstblock);
 	/*
 	 * If allocating at eof, and there's a previous real block,
 	 * try to use its last block as our starting point.
@@ -3417,8 +3418,9 @@  xfs_bmap_btalloc(
 	}
 
 
-	nullfb = *ap->firstblock == NULLFSBLOCK;
-	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, *ap->firstblock);
+	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;
+	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp,
+							ap->tp->t_firstblock);
 	if (nullfb) {
 		if (xfs_alloc_is_userdata(ap->datatype) &&
 		    xfs_inode_is_filestream(ap->ip)) {
@@ -3429,7 +3431,7 @@  xfs_bmap_btalloc(
 			ap->blkno = XFS_INO_TO_FSB(mp, ap->ip->i_ino);
 		}
 	} else
-		ap->blkno = *ap->firstblock;
+		ap->blkno = ap->tp->t_firstblock;
 
 	xfs_bmap_adjacent(ap);
 
@@ -3440,7 +3442,7 @@  xfs_bmap_btalloc(
 	if (nullfb || XFS_FSB_TO_AGNO(mp, ap->blkno) == fb_agno)
 		;
 	else
-		ap->blkno = *ap->firstblock;
+		ap->blkno = ap->tp->t_firstblock;
 	/*
 	 * Normal allocation, done through xfs_alloc_vextent.
 	 */
@@ -3453,7 +3455,7 @@  xfs_bmap_btalloc(
 
 	/* Trim the allocation back to the maximum an AG can fit. */
 	args.maxlen = min(ap->length, mp->m_ag_max_usable);
-	args.firstblock = *ap->firstblock;
+	args.firstblock = ap->tp->t_firstblock;
 	blen = 0;
 	if (nullfb) {
 		/*
@@ -3602,13 +3604,13 @@  xfs_bmap_btalloc(
 		 * check the allocation happened at the same or higher AG than
 		 * the first block that was allocated.
 		 */
-		ASSERT(*ap->firstblock == NULLFSBLOCK ||
-		       XFS_FSB_TO_AGNO(mp, *ap->firstblock) <=
+		ASSERT(ap->tp->t_firstblock == NULLFSBLOCK ||
+		       XFS_FSB_TO_AGNO(mp, ap->tp->t_firstblock) <=
 		       XFS_FSB_TO_AGNO(mp, args.fsbno));
 
 		ap->blkno = args.fsbno;
-		if (*ap->firstblock == NULLFSBLOCK)
-			*ap->firstblock = args.fsbno;
+		if (ap->tp->t_firstblock == NULLFSBLOCK)
+			ap->tp->t_firstblock = args.fsbno;
 		ASSERT(nullfb || fb_agno <= args.agno);
 		ap->length = args.len;
 		/*
@@ -4065,12 +4067,12 @@  xfs_bmapi_allocate(
 		return error;
 
 	if (bma->cur)
-		bma->cur->bc_private.b.firstblock = *bma->firstblock;
+		bma->cur->bc_private.b.firstblock = bma->tp->t_firstblock;
 	if (bma->blkno == NULLFSBLOCK)
 		return 0;
 	if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur) {
 		bma->cur = xfs_bmbt_init_cursor(mp, bma->tp, bma->ip, whichfork);
-		bma->cur->bc_private.b.firstblock = *bma->firstblock;
+		bma->cur->bc_private.b.firstblock = bma->tp->t_firstblock;
 	}
 	/*
 	 * Bump the number of extents we've allocated
@@ -4106,7 +4108,8 @@  xfs_bmapi_allocate(
 	else
 		error = xfs_bmap_add_extent_hole_real(bma->tp, bma->ip,
 				whichfork, &bma->icur, &bma->cur, &bma->got,
-				bma->firstblock, &bma->logflags, bma->flags);
+				&bma->tp->t_firstblock, &bma->logflags,
+				bma->flags);
 
 	bma->logflags |= tmp_logflags;
 	if (error)
@@ -4157,7 +4160,7 @@  xfs_bmapi_convert_unwritten(
 	if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur) {
 		bma->cur = xfs_bmbt_init_cursor(bma->ip->i_mount, bma->tp,
 					bma->ip, whichfork);
-		bma->cur->bc_private.b.firstblock = *bma->firstblock;
+		bma->cur->bc_private.b.firstblock = bma->tp->t_firstblock;
 	}
 	mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN)
 				? XFS_EXT_NORM : XFS_EXT_UNWRITTEN;
@@ -4174,7 +4177,7 @@  xfs_bmapi_convert_unwritten(
 	}
 
 	error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, whichfork,
-			&bma->icur, &bma->cur, mval, bma->firstblock,
+			&bma->icur, &bma->cur, mval, &bma->tp->t_firstblock,
 			&tmp_logflags);
 	/*
 	 * Log the inode core unconditionally in the unwritten extent conversion
@@ -4315,7 +4318,6 @@  xfs_bmapi_write(
 	bma.ip = ip;
 	bma.total = total;
 	bma.datatype = 0;
-	bma.firstblock = &tp->t_firstblock;
 	ASSERT(!tp || tp->t_dfops);
 
 	while (bno < end && n < *nmap) {
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index fa839679ecb6..bbd641ae3261 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -19,7 +19,6 @@  extern kmem_zone_t	*xfs_bmap_free_item_zone;
  * Argument structure for xfs_bmap_alloc.
  */
 struct xfs_bmalloca {
-	xfs_fsblock_t		*firstblock; /* i/o first block allocated */
 	struct xfs_trans	*tp;	/* transaction pointer */
 	struct xfs_inode	*ip;	/* incore inode pointer */
 	struct xfs_bmbt_irec	prev;	/* extent before the new one */