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Commit d24e0569 authored by Bob Peterson's avatar Bob Peterson Committed by Steven Whitehouse
Browse files

GFS2: Use gfs2_rbm_incr in rgblk_free 



This patch speeds up GFS2 unlink operations by using function
gfs2_rbm_incr rather than continuously calculating the rbm.

Signed-off-by: default avatarBob Peterson <rpeterso@redhat.com>
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
parent 19aeb5a6

fs/gfs2/rgrp.c

+13 −9
Original line number Diff line number Diff line
@@ -2097,7 +2097,7 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart, 
				     u32 blen, unsigned char new_state)

{

	struct gfs2_rbm rbm;

	struct gfs2_bitmap *bi;

	struct gfs2_bitmap *bi, *bi_prev = NULL;



	rbm.rgd = gfs2_blk2rgrpd(sdp, bstart, 1);

	if (!rbm.rgd) {
@@ -2106,18 +2106,22 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart, 
		return NULL;

	}



	while (blen--) {

	gfs2_rbm_from_block(&rbm, bstart);

	while (blen--) {

		bi = rbm_bi(&rbm);

		bstart++;

		if (bi != bi_prev) {

			if (!bi->bi_clone) {

				bi->bi_clone = kmalloc(bi->bi_bh->b_size,

						      GFP_NOFS | __GFP_NOFAIL);

				memcpy(bi->bi_clone + bi->bi_offset,

			       bi->bi_bh->b_data + bi->bi_offset, bi->bi_len);

				       bi->bi_bh->b_data + bi->bi_offset,

				       bi->bi_len);

			}

			gfs2_trans_add_meta(rbm.rgd->rd_gl, bi->bi_bh);

			bi_prev = bi;

		}

		gfs2_setbit(&rbm, false, new_state);

		gfs2_rbm_incr(&rbm);

	}



	return rbm.rgd;