Commit ca5d8e5b authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Darrick J. Wong
Browse files

xfs: move pre/post-bmap tracing into xfs_iext_update_extent 



xfs_iext_update_extent already has basically all the information needed
to centralize the bmap pre/post tracing.  We just need to pass inode +
bmap state instead of the inode fork pointer to get all trace annotations.

In addition to covering all the existing trace points this gives us
tracing coverage for the extent shifting operations for free.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
parent d138604f

fs/xfs/libxfs/xfs_bmap.c

+47 −120
Original line number Diff line number Diff line
@@ -1669,10 +1669,8 @@ xfs_bmap_add_extent_delay_real( 
		 * The left and right neighbors are both contiguous with new.

		 */

		bma->idx--;

		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);

		LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;

		xfs_iext_update_extent(ifp, bma->idx, &LEFT);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &LEFT);



		xfs_iext_remove(bma->ip, bma->idx + 1, 2, state);

		(*nextents)--;
@@ -1706,10 +1704,8 @@ xfs_bmap_add_extent_delay_real( 
		bma->idx--;



		old = LEFT;

		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);

		LEFT.br_blockcount += PREV.br_blockcount;

		xfs_iext_update_extent(ifp, bma->idx, &LEFT);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &LEFT);



		xfs_iext_remove(bma->ip, bma->idx + 1, 1, state);

		if (bma->cur == NULL)
@@ -1731,11 +1727,9 @@ xfs_bmap_add_extent_delay_real( 
		 * Filling in all of a previously delayed allocation extent.

		 * The right neighbor is contiguous, the left is not.

		 */

		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);

		PREV.br_startblock = new->br_startblock;

		PREV.br_blockcount += RIGHT.br_blockcount;

		xfs_iext_update_extent(ifp, bma->idx, &PREV);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &PREV);



		xfs_iext_remove(bma->ip, bma->idx + 1, 1, state);

		if (bma->cur == NULL)
@@ -1758,11 +1752,9 @@ xfs_bmap_add_extent_delay_real( 
		 * Neither the left nor right neighbors are contiguous with

		 * the new one.

		 */

		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);

		PREV.br_startblock = new->br_startblock;

		PREV.br_state = new->br_state;

		xfs_iext_update_extent(ifp, bma->idx, &PREV);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &PREV);



		(*nextents)++;

		if (bma->cur == NULL)
@@ -1790,17 +1782,13 @@ xfs_bmap_add_extent_delay_real( 
		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),

				startblockval(PREV.br_startblock));



		trace_xfs_bmap_pre_update(bma->ip, bma->idx - 1, state, _THIS_IP_);

		LEFT.br_blockcount += new->br_blockcount;

		xfs_iext_update_extent(ifp, bma->idx - 1, &LEFT);

		trace_xfs_bmap_post_update(bma->ip, bma->idx - 1, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx - 1, &LEFT);



		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);

		PREV.br_blockcount = temp = PREV.br_blockcount - new->br_blockcount;

		PREV.br_startoff += new->br_blockcount;

		PREV.br_startblock = nullstartblock(da_new);

		xfs_iext_update_extent(ifp, bma->idx, &PREV);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &PREV);



		if (bma->cur == NULL)

			rval = XFS_ILOG_DEXT;
@@ -1853,13 +1841,10 @@ xfs_bmap_add_extent_delay_real( 
			startblockval(PREV.br_startblock) -

			(bma->cur ? bma->cur->bc_private.b.allocated : 0));



		trace_xfs_bmap_pre_update(bma->ip, bma->idx + 1, state, _THIS_IP_);

		PREV.br_startoff = new_endoff;

		PREV.br_blockcount = temp;

		PREV.br_startblock = nullstartblock(da_new);

		xfs_iext_update_extent(ifp, bma->idx + 1, &PREV);

		trace_xfs_bmap_post_update(bma->ip, bma->idx + 1, state, _THIS_IP_);



		xfs_iext_update_extent(bma->ip, state, bma->idx + 1, &PREV);

		break;



	case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1868,12 +1853,10 @@ xfs_bmap_add_extent_delay_real( 
		 * The right neighbor is contiguous with the new allocation.

		 */

		old = RIGHT;

		trace_xfs_bmap_pre_update(bma->ip, bma->idx + 1, state, _THIS_IP_);

		RIGHT.br_startoff = new->br_startoff;

		RIGHT.br_startblock = new->br_startblock;

		RIGHT.br_blockcount += new->br_blockcount;

		xfs_iext_update_extent(ifp, bma->idx + 1, &RIGHT);

		trace_xfs_bmap_post_update(bma->ip, bma->idx + 1, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx + 1, &RIGHT);



		if (bma->cur == NULL)

			rval = XFS_ILOG_DEXT;
@@ -1892,11 +1875,9 @@ xfs_bmap_add_extent_delay_real( 
		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),

			startblockval(PREV.br_startblock));



		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);

		PREV.br_blockcount = temp;

		PREV.br_startblock = nullstartblock(da_new);

		xfs_iext_update_extent(ifp, bma->idx, &PREV);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &PREV);



		bma->idx++;

		break;
@@ -1936,11 +1917,9 @@ xfs_bmap_add_extent_delay_real( 
			startblockval(PREV.br_startblock) -

			(bma->cur ? bma->cur->bc_private.b.allocated : 0));



		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);

		PREV.br_startblock = nullstartblock(da_new);

		PREV.br_blockcount = temp;

		xfs_iext_update_extent(ifp, bma->idx, &PREV);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &PREV);



		bma->idx++;

		break;
@@ -1981,13 +1960,11 @@ xfs_bmap_add_extent_delay_real( 
					RIGHT.br_blockcount));



		/* truncate PREV */

		trace_xfs_bmap_pre_update(bma->ip, bma->idx, 0, _THIS_IP_);

		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;

		PREV.br_startblock =

			nullstartblock(xfs_bmap_worst_indlen(bma->ip,

					PREV.br_blockcount));

		xfs_iext_update_extent(ifp, bma->idx, &PREV);

		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);

		xfs_iext_update_extent(bma->ip, state, bma->idx, &PREV);



		/* insert LEFT (r[0]) and RIGHT (r[1]) at the same time */

		xfs_iext_insert(bma->ip, bma->idx + 1, 2, &LEFT, state);
@@ -2192,10 +2169,8 @@ xfs_bmap_add_extent_unwritten_real( 
		 */

		--*idx;



		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &LEFT);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &LEFT);



		xfs_iext_remove(ip, *idx + 1, 2, state);

		XFS_IFORK_NEXT_SET(ip, whichfork,
@@ -2233,10 +2208,8 @@ xfs_bmap_add_extent_unwritten_real( 
		 */

		--*idx;



		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		LEFT.br_blockcount += PREV.br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &LEFT);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &LEFT);



		xfs_iext_remove(ip, *idx + 1, 1, state);

		XFS_IFORK_NEXT_SET(ip, whichfork,
@@ -2266,11 +2239,9 @@ xfs_bmap_add_extent_unwritten_real( 
		 * Setting all of a previous oldext extent to newext.

		 * The right neighbor is contiguous, the left is not.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		PREV.br_blockcount += RIGHT.br_blockcount;

		PREV.br_state = new->br_state;

		xfs_iext_update_extent(ifp, *idx, &PREV);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &PREV);



		xfs_iext_remove(ip, *idx + 1, 1, state);

		XFS_IFORK_NEXT_SET(ip, whichfork,
@@ -2301,10 +2272,8 @@ xfs_bmap_add_extent_unwritten_real( 
		 * Neither the left nor right neighbors are contiguous with

		 * the new one.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		PREV.br_state = new->br_state;

		xfs_iext_update_extent(ifp, *idx, &PREV);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &PREV);



		if (cur == NULL)

			rval = XFS_ILOG_DEXT;
@@ -2325,18 +2294,14 @@ xfs_bmap_add_extent_unwritten_real( 
		 * Setting the first part of a previous oldext extent to newext.

		 * The left neighbor is contiguous.

		 */

		trace_xfs_bmap_pre_update(ip, *idx - 1, state, _THIS_IP_);

		LEFT.br_blockcount += new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx - 1, &LEFT);

		trace_xfs_bmap_post_update(ip, *idx - 1, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx - 1, &LEFT);



		old = PREV;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		PREV.br_startoff += new->br_blockcount;

		PREV.br_startblock += new->br_blockcount;

		PREV.br_blockcount -= new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &PREV);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &PREV);



		--*idx;
@@ -2366,12 +2331,10 @@ xfs_bmap_add_extent_unwritten_real( 
		 * The left neighbor is not contiguous.

		 */

		old = PREV;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		PREV.br_startoff += new->br_blockcount;

		PREV.br_startblock += new->br_blockcount;

		PREV.br_blockcount -= new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &PREV);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &PREV);



		xfs_iext_insert(ip, *idx, 1, new, state);

		XFS_IFORK_NEXT_SET(ip, whichfork,
@@ -2400,19 +2363,15 @@ xfs_bmap_add_extent_unwritten_real( 
		 * The right neighbor is contiguous with the new allocation.

		 */

		old = PREV;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		PREV.br_blockcount -= new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &PREV);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &PREV);



		++*idx;



		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		RIGHT.br_startoff = new->br_startoff;

		RIGHT.br_startblock = new->br_startblock;

		RIGHT.br_blockcount += new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &RIGHT);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &RIGHT);



		if (cur == NULL)

			rval = XFS_ILOG_DEXT;
@@ -2440,10 +2399,8 @@ xfs_bmap_add_extent_unwritten_real( 
		 * The right neighbor is not contiguous.

		 */

		old = PREV;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		PREV.br_blockcount -= new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &PREV);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &PREV);



		++*idx;

		xfs_iext_insert(ip, *idx, 1, new, state);
@@ -2478,10 +2435,8 @@ xfs_bmap_add_extent_unwritten_real( 
		 * One extent becomes three extents.

		 */

		old = PREV;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;

		xfs_iext_update_extent(ifp, *idx, &PREV);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &PREV);



		r[0] = *new;

		r[1].br_startoff = new_endoff;
@@ -2648,7 +2603,6 @@ xfs_bmap_add_extent_hole_delay( 
		temp = left.br_blockcount + new->br_blockcount +

			right.br_blockcount;



		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		oldlen = startblockval(left.br_startblock) +

			startblockval(new->br_startblock) +

			startblockval(right.br_startblock);
@@ -2656,8 +2610,7 @@ xfs_bmap_add_extent_hole_delay( 
					 oldlen);

		left.br_startblock = nullstartblock(newlen);

		left.br_blockcount = temp;

		xfs_iext_update_extent(ifp, *idx, &left);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &left);



		xfs_iext_remove(ip, *idx + 1, 1, state);

		break;
@@ -2671,15 +2624,13 @@ xfs_bmap_add_extent_hole_delay( 
		--*idx;

		temp = left.br_blockcount + new->br_blockcount;



		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		oldlen = startblockval(left.br_startblock) +

			startblockval(new->br_startblock);

		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),

					 oldlen);

		left.br_blockcount = temp;

		left.br_startblock = nullstartblock(newlen);

		xfs_iext_update_extent(ifp, *idx, &left);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &left);

		break;



	case BMAP_RIGHT_CONTIG:
@@ -2688,7 +2639,6 @@ xfs_bmap_add_extent_hole_delay( 
		 * on the right.

		 * Merge the new allocation with the right neighbor.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		temp = new->br_blockcount + right.br_blockcount;

		oldlen = startblockval(new->br_startblock) +

			startblockval(right.br_startblock);
@@ -2697,8 +2647,7 @@ xfs_bmap_add_extent_hole_delay( 
		right.br_startoff = new->br_startoff;

		right.br_startblock = nullstartblock(newlen);

		right.br_blockcount = temp;

		xfs_iext_update_extent(ifp, *idx, &right);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &right);

		break;



	case 0:
@@ -2808,10 +2757,8 @@ xfs_bmap_add_extent_hole_real( 
		 * Merge all three into a single extent record.

		 */

		--*idx;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		left.br_blockcount += new->br_blockcount + right.br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &left);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &left);



		xfs_iext_remove(ip, *idx + 1, 1, state);
@@ -2847,10 +2794,9 @@ xfs_bmap_add_extent_hole_real( 
		 */

		--*idx;

		old = left;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);



		left.br_blockcount += new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &left);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &left);



		if (cur == NULL) {

			rval = xfs_ilog_fext(whichfork);
@@ -2873,12 +2819,11 @@ xfs_bmap_add_extent_hole_real( 
		 * Merge the new allocation with the right neighbor.

		 */

		old = right;

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);



		right.br_startoff = new->br_startoff;

		right.br_startblock = new->br_startblock;

		right.br_blockcount += new->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &right);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &right);



		if (cur == NULL) {

			rval = xfs_ilog_fext(whichfork);
@@ -4780,26 +4725,22 @@ xfs_bmap_del_extent_delay( 
		/*

		 * Deleting the first part of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		got->br_startoff = del_endoff;

		got->br_blockcount -= del->br_blockcount;

		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip,

				got->br_blockcount), da_old);

		got->br_startblock = nullstartblock((int)da_new);

		xfs_iext_update_extent(ifp, *idx, got);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, got);

		break;

	case BMAP_RIGHT_FILLING:

		/*

		 * Deleting the last part of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		got->br_blockcount = got->br_blockcount - del->br_blockcount;

		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip,

				got->br_blockcount), da_old);

		got->br_startblock = nullstartblock((int)da_new);

		xfs_iext_update_extent(ifp, *idx, got);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, got);

		break;

	case 0:

		/*
@@ -4811,8 +4752,6 @@ xfs_bmap_del_extent_delay( 
		 * Warn if either of the new indlen reservations is zero as this

		 * can lead to delalloc problems.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);



		got->br_blockcount = del->br_startoff - got->br_startoff;

		got_indlen = xfs_bmap_worst_indlen(ip, got->br_blockcount);
@@ -4824,8 +4763,7 @@ xfs_bmap_del_extent_delay( 
						       del->br_blockcount);



		got->br_startblock = nullstartblock((int)got_indlen);

		xfs_iext_update_extent(ifp, *idx, got);

		trace_xfs_bmap_post_update(ip, *idx, 0, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, got);



		new.br_startoff = del_endoff;

		new.br_state = got->br_state;
@@ -4890,30 +4828,24 @@ xfs_bmap_del_extent_cow( 
		/*

		 * Deleting the first part of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		got->br_startoff = del_endoff;

		got->br_blockcount -= del->br_blockcount;

		got->br_startblock = del->br_startblock + del->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, got);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, got);

		break;

	case BMAP_RIGHT_FILLING:

		/*

		 * Deleting the last part of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		got->br_blockcount -= del->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, got);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, got);

		break;

	case 0:

		/*

		 * Deleting the middle of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		got->br_blockcount = del->br_startoff - got->br_startoff;

		xfs_iext_update_extent(ifp, *idx, got);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, got);



		new.br_startoff = del_endoff;

		new.br_blockcount = got_endoff - del_endoff;
@@ -5030,7 +4962,6 @@ xfs_bmap_del_extent_real( 
		/*

		 * Matches the whole extent.  Delete the entry.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_remove(ip, *idx, 1, state);

		--*idx;
@@ -5049,12 +4980,10 @@ xfs_bmap_del_extent_real( 
		/*

		 * Deleting the first part of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		got.br_startoff = del_endoff;

		got.br_startblock = del_endblock;

		got.br_blockcount -= del->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &got);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &got);

		if (!cur) {

			flags |= xfs_ilog_fext(whichfork);

			break;
@@ -5067,10 +4996,8 @@ xfs_bmap_del_extent_real( 
		/*

		 * Deleting the last part of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);

		got.br_blockcount -= del->br_blockcount;

		xfs_iext_update_extent(ifp, *idx, &got);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_update_extent(ip, state, *idx, &got);

		if (!cur) {

			flags |= xfs_ilog_fext(whichfork);

			break;
@@ -5083,11 +5010,10 @@ xfs_bmap_del_extent_real( 
		/*

		 * Deleting the middle of the extent.

		 */

		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);



		old = got;



		got.br_blockcount = del->br_startoff - got.br_startoff;

		xfs_iext_update_extent(ifp, *idx, &got);

		xfs_iext_update_extent(ip, state, *idx, &got);



		new.br_startoff = del_endoff;

		new.br_blockcount = got_endoff - del_endoff;
@@ -5131,7 +5057,7 @@ xfs_bmap_del_extent_real( 
				 * Reset the extent record back

				 * to the original value.

				 */

				xfs_iext_update_extent(ifp, *idx, &old);

				xfs_iext_update_extent(ip, state, *idx, &old);

				flags = 0;

				error = -ENOSPC;

				goto done;
@@ -5141,7 +5067,6 @@ xfs_bmap_del_extent_real( 
			flags |= xfs_ilog_fext(whichfork);

		XFS_IFORK_NEXT_SET(ip, whichfork,

			XFS_IFORK_NEXTENTS(ip, whichfork) + 1);

		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);

		xfs_iext_insert(ip, *idx + 1, 1, &new, state);

		++*idx;

		break;
@@ -5616,7 +5541,6 @@ xfs_bmse_merge( 
	int				*logflags,	/* output */

	struct xfs_defer_ops		*dfops)

{

	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, whichfork);

	struct xfs_bmbt_irec		new;

	xfs_filblks_t			blockcount;

	int				error, i;
@@ -5665,7 +5589,8 @@ xfs_bmse_merge( 
		return error;



done:

	xfs_iext_update_extent(ifp, current_ext - 1, &new);

	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork),

			current_ext - 1, &new);

	xfs_iext_remove(ip, current_ext, 1, 0);



	/* update reverse mapping. rmap functions merge the rmaps for us */
@@ -5783,7 +5708,8 @@ update_current_ext: 
		*logflags |= XFS_ILOG_DEXT;

	}



	xfs_iext_update_extent(ifp, *current_ext, &new);

	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork),

			*current_ext, &new);



	if (direction == SHIFT_LEFT)

		(*current_ext)++;
@@ -6030,7 +5956,8 @@ xfs_bmap_split_extent_at( 
	}



	got.br_blockcount = gotblkcnt;

	xfs_iext_update_extent(ifp, current_ext, &got);

	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork),

			current_ext, &got);



	logflags = XFS_ILOG_CORE;

	if (cur) {

fs/xfs/libxfs/xfs_inode_fork.c

+6 −1
Original line number Diff line number Diff line
@@ -2023,12 +2023,17 @@ xfs_iext_get_extent( 


void

xfs_iext_update_extent(

	struct xfs_ifork	*ifp,

	struct xfs_inode	*ip,

	int			state,

	xfs_extnum_t		idx,

	struct xfs_bmbt_irec	*gotp)

{

	struct xfs_ifork	*ifp = xfs_iext_state_to_fork(ip, state);



	ASSERT(idx >= 0);

	ASSERT(idx < xfs_iext_count(ifp));



	trace_xfs_bmap_pre_update(ip, idx, state, _RET_IP_);

	xfs_bmbt_set_all(xfs_iext_get_ext(ifp, idx), gotp);

	trace_xfs_bmap_post_update(ip, idx, state, _RET_IP_);

}

fs/xfs/libxfs/xfs_inode_fork.h

+2 −2
Original line number Diff line number Diff line
@@ -187,8 +187,8 @@ bool xfs_iext_lookup_extent(struct xfs_inode *ip, 
			xfs_extnum_t *idxp, struct xfs_bmbt_irec *gotp);

bool		xfs_iext_get_extent(struct xfs_ifork *ifp, xfs_extnum_t idx,

			struct xfs_bmbt_irec *gotp);

void		xfs_iext_update_extent(struct xfs_ifork *ifp, xfs_extnum_t idx,

			struct xfs_bmbt_irec *gotp);

void		xfs_iext_update_extent(struct xfs_inode *ip, int state,

			xfs_extnum_t idx, struct xfs_bmbt_irec *gotp);



extern struct kmem_zone	*xfs_ifork_zone;

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