Commit 29c8d17a authored by Dave Chinner's avatar Dave Chinner Committed by Alex Elder
Browse files

xfs: move btree cursor into bmalloca 



Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarAlex Elder <aelder@sgi.com>
parent 963c30cf

fs/xfs/xfs_bmap.c

+26 −30
Original line number Diff line number Diff line
@@ -4608,7 +4608,6 @@ STATIC int 
xfs_bmapi_allocate(

	struct xfs_bmalloca	*bma,

	xfs_extnum_t		*lastx,

	struct xfs_btree_cur	**cur,

	int			flags,

	int			*nallocs,

	int			*logflags)
@@ -4668,14 +4667,14 @@ xfs_bmapi_allocate( 


	if (bma->flist->xbf_low)

		bma->minleft = 0;

	if (*cur)

		(*cur)->bc_private.b.firstblock = *bma->firstblock;

	if (bma->cur)

		bma->cur->bc_private.b.firstblock = *bma->firstblock;

	if (bma->blkno == NULLFSBLOCK)

		return 0;

	if ((ifp->if_flags & XFS_IFBROOT) && !*cur) {

		(*cur) = xfs_bmbt_init_cursor(mp, bma->tp, bma->ip, whichfork);

		(*cur)->bc_private.b.firstblock = *bma->firstblock;

		(*cur)->bc_private.b.flist = bma->flist;

	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.flist = bma->flist;

	}

	/*

	 * Bump the number of extents we've allocated
@@ -4683,8 +4682,8 @@ xfs_bmapi_allocate( 
	 */

	(*nallocs)++;



	if (*cur)

		(*cur)->bc_private.b.flags =

	if (bma->cur)

		bma->cur->bc_private.b.flags =

			bma->wasdel ? XFS_BTCUR_BPRV_WASDEL : 0;



	bma->got.br_startoff = bma->offset;
@@ -4702,12 +4701,12 @@ xfs_bmapi_allocate( 


	if (bma->wasdel) {

		error = xfs_bmap_add_extent_delay_real(bma->tp, bma->ip, lastx,

				cur, &bma->got, bma->firstblock, bma->flist,

				logflags);

				&bma->cur, &bma->got, bma->firstblock,

				bma->flist, logflags);

	} else {

		error = xfs_bmap_add_extent_hole_real(bma->tp, bma->ip, lastx,

				cur, &bma->got, bma->firstblock, bma->flist,

				logflags, whichfork);

				&bma->cur, &bma->got, bma->firstblock,

				bma->flist, logflags, whichfork);

	}



	if (error)
@@ -4734,7 +4733,6 @@ xfs_bmapi_convert_unwritten( 
	struct xfs_bmbt_irec	*mval,

	xfs_filblks_t		len,

	xfs_extnum_t		*lastx,

	struct xfs_btree_cur	**cur,

	int			flags,

	int			*logflags)

{
@@ -4760,17 +4758,17 @@ xfs_bmapi_convert_unwritten( 
	 * Modify (by adding) the state flag, if writing.

	 */

	ASSERT(mval->br_blockcount <= len);

	if ((ifp->if_flags & XFS_IFBROOT) && !*cur) {

		*cur = xfs_bmbt_init_cursor(bma->ip->i_mount, bma->tp,

	if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur) {

		bma->cur = xfs_bmbt_init_cursor(bma->ip->i_mount, bma->tp,

					bma->ip, whichfork);

		(*cur)->bc_private.b.firstblock = *bma->firstblock;

		(*cur)->bc_private.b.flist = bma->flist;

		bma->cur->bc_private.b.firstblock = *bma->firstblock;

		bma->cur->bc_private.b.flist = bma->flist;

	}

	mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN)

				? XFS_EXT_NORM : XFS_EXT_UNWRITTEN;



	error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, lastx,

			cur, mval, bma->firstblock, bma->flist, logflags);

			&bma->cur, mval, bma->firstblock, bma->flist, logflags);

	if (error)

		return error;
@@ -4819,7 +4817,6 @@ xfs_bmapi_write( 
	struct xfs_mount	*mp = ip->i_mount;

	struct xfs_ifork	*ifp;

	struct xfs_bmalloca	bma = { 0 };	/* args for xfs_bmap_alloc */

	struct xfs_btree_cur	*cur;		/* bmap btree cursor */

	xfs_fileoff_t		end;		/* end of mapped file region */

	int			eof;		/* after the end of extents */

	int			error;		/* error return */
@@ -4875,7 +4872,6 @@ xfs_bmapi_write( 


	logflags = 0;

	nallocs = 0;

	cur = NULL;



	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {

		error = xfs_bmap_local_to_extents(tp, ip, firstblock, total,
@@ -4927,7 +4923,7 @@ xfs_bmapi_write( 
			bma.length = len;

			bma.offset = bno;



			error = xfs_bmapi_allocate(&bma, &lastx, &cur, flags,

			error = xfs_bmapi_allocate(&bma, &lastx, flags,

					&nallocs, &tmp_logflags);

			logflags |= tmp_logflags;

			if (error)
@@ -4942,7 +4938,7 @@ xfs_bmapi_write( 


		/* Execute unwritten extent conversion if necessary */

		error = xfs_bmapi_convert_unwritten(&bma, mval, len, &lastx,

						    &cur, flags, &tmp_logflags);

						    flags, &tmp_logflags);

		logflags |= tmp_logflags;

		if (error == EAGAIN)

			continue;
@@ -4974,8 +4970,8 @@ xfs_bmapi_write( 
	 */

	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE &&

	    XFS_IFORK_NEXTENTS(ip, whichfork) <= ifp->if_ext_max) {

		ASSERT(cur);

		error = xfs_bmap_btree_to_extents(tp, ip, cur,

		ASSERT(bma.cur);

		error = xfs_bmap_btree_to_extents(tp, ip, bma.cur,

			&tmp_logflags, whichfork);

		logflags |= tmp_logflags;

		if (error)
@@ -5005,19 +5001,19 @@ error0: 
	if (logflags)

		xfs_trans_log_inode(tp, ip, logflags);



	if (cur) {

	if (bma.cur) {

		if (!error) {

			ASSERT(*firstblock == NULLFSBLOCK ||

			       XFS_FSB_TO_AGNO(mp, *firstblock) ==

			       XFS_FSB_TO_AGNO(mp,

				       cur->bc_private.b.firstblock) ||

				       bma.cur->bc_private.b.firstblock) ||

			       (flist->xbf_low &&

				XFS_FSB_TO_AGNO(mp, *firstblock) <

				XFS_FSB_TO_AGNO(mp,

					cur->bc_private.b.firstblock)));

			*firstblock = cur->bc_private.b.firstblock;

					bma.cur->bc_private.b.firstblock)));

			*firstblock = bma.cur->bc_private.b.firstblock;

		}

		xfs_btree_del_cursor(cur,

		xfs_btree_del_cursor(bma.cur,

			error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);

	}

	if (!error)

fs/xfs/xfs_bmap.h

+2 −0
Original line number Diff line number Diff line
@@ -120,6 +120,8 @@ typedef struct xfs_bmalloca { 
	xfs_extlen_t		length;	/* i/o length asked/allocated */

	xfs_fsblock_t		blkno;	/* starting block of new extent */



	struct xfs_btree_cur	*cur;	/* btree cursor */



	xfs_extlen_t		total;	/* total blocks needed for xaction */

	xfs_extlen_t		minlen;	/* minimum allocation size (blocks) */

	xfs_extlen_t		minleft; /* amount must be left after alloc */

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