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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: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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1 changed files with 13 additions and 9 deletions
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@ -2097,7 +2097,7 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
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u32 blen, unsigned char new_state)
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u32 blen, unsigned char new_state)
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{
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{
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struct gfs2_rbm rbm;
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struct gfs2_rbm rbm;
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struct gfs2_bitmap *bi;
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struct gfs2_bitmap *bi, *bi_prev = NULL;
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rbm.rgd = gfs2_blk2rgrpd(sdp, bstart, 1);
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rbm.rgd = gfs2_blk2rgrpd(sdp, bstart, 1);
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if (!rbm.rgd) {
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if (!rbm.rgd) {
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@ -2106,18 +2106,22 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
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return NULL;
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return NULL;
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}
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}
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gfs2_rbm_from_block(&rbm, bstart);
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while (blen--) {
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while (blen--) {
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gfs2_rbm_from_block(&rbm, bstart);
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bi = rbm_bi(&rbm);
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bi = rbm_bi(&rbm);
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bstart++;
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if (bi != bi_prev) {
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if (!bi->bi_clone) {
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if (!bi->bi_clone) {
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bi->bi_clone = kmalloc(bi->bi_bh->b_size,
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bi->bi_clone = kmalloc(bi->bi_bh->b_size,
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GFP_NOFS | __GFP_NOFAIL);
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GFP_NOFS | __GFP_NOFAIL);
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memcpy(bi->bi_clone + bi->bi_offset,
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memcpy(bi->bi_clone + bi->bi_offset,
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bi->bi_bh->b_data + bi->bi_offset, bi->bi_len);
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bi->bi_bh->b_data + bi->bi_offset,
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bi->bi_len);
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}
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gfs2_trans_add_meta(rbm.rgd->rd_gl, bi->bi_bh);
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bi_prev = bi;
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}
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}
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gfs2_trans_add_meta(rbm.rgd->rd_gl, bi->bi_bh);
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gfs2_setbit(&rbm, false, new_state);
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gfs2_setbit(&rbm, false, new_state);
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gfs2_rbm_incr(&rbm);
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}
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}
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return rbm.rgd;
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return rbm.rgd;
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