diff options
Diffstat (limited to 'fs/gfs2/lops.c')
| -rw-r--r-- | fs/gfs2/lops.c | 55 |
1 files changed, 37 insertions, 18 deletions
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index bf33f822058d..05bbb124699f 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -40,7 +40,7 @@ static void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh) { struct gfs2_bufdata *bd; - gfs2_assert_withdraw(sdp, test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); + BUG_ON(!current->journal_info); clear_buffer_dirty(bh); if (test_set_buffer_pinned(bh)) @@ -51,8 +51,10 @@ static void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh) /* If this buffer is in the AIL and it has already been written * to in-place disk block, remove it from the AIL. */ + spin_lock(&sdp->sd_ail_lock); if (bd->bd_ail) list_move(&bd->bd_ail_st_list, &bd->bd_ail->ai_ail2_list); + spin_unlock(&sdp->sd_ail_lock); get_bh(bh); atomic_inc(&sdp->sd_log_pinned); trace_gfs2_pin(bd, 1); @@ -63,6 +65,7 @@ static void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh) * @sdp: the filesystem the buffer belongs to * @bh: The buffer to unpin * @ai: + * @flags: The inode dirty flags * */ @@ -71,16 +74,14 @@ static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh, { struct gfs2_bufdata *bd = bh->b_private; - gfs2_assert_withdraw(sdp, buffer_uptodate(bh)); - - if (!buffer_pinned(bh)) - gfs2_assert_withdraw(sdp, 0); + BUG_ON(!buffer_uptodate(bh)); + BUG_ON(!buffer_pinned(bh)); lock_buffer(bh); mark_buffer_dirty(bh); clear_buffer_pinned(bh); - gfs2_log_lock(sdp); + spin_lock(&sdp->sd_ail_lock); if (bd->bd_ail) { list_del(&bd->bd_ail_st_list); brelse(bh); @@ -91,9 +92,10 @@ static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh, } bd->bd_ail = ai; list_add(&bd->bd_ail_st_list, &ai->ai_ail1_list); + spin_unlock(&sdp->sd_ail_lock); + clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); trace_gfs2_pin(bd, 0); - gfs2_log_unlock(sdp); unlock_buffer(bh); atomic_dec(&sdp->sd_log_pinned); } @@ -200,7 +202,7 @@ static void buf_lo_before_commit(struct gfs2_sbd *sdp) } gfs2_log_unlock(sdp); - submit_bh(WRITE_SYNC_PLUG, bh); + submit_bh(WRITE_SYNC, bh); gfs2_log_lock(sdp); n = 0; @@ -210,7 +212,7 @@ static void buf_lo_before_commit(struct gfs2_sbd *sdp) gfs2_log_unlock(sdp); lock_buffer(bd2->bd_bh); bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); - submit_bh(WRITE_SYNC_PLUG, bh); + submit_bh(WRITE_SYNC, bh); gfs2_log_lock(sdp); if (++n >= num) break; @@ -318,12 +320,16 @@ static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) { + struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); + struct gfs2_glock *gl = bd->bd_gl; struct gfs2_trans *tr; tr = current->journal_info; tr->tr_touched = 1; tr->tr_num_revoke++; sdp->sd_log_num_revoke++; + atomic_inc(&gl->gl_revokes); + set_bit(GLF_LFLUSH, &gl->gl_flags); list_add(&le->le_list, &sdp->sd_log_le_revoke); } @@ -346,13 +352,11 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp) ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); offset = sizeof(struct gfs2_log_descriptor); - while (!list_empty(head)) { - bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); - list_del_init(&bd->bd_le.le_list); + list_for_each_entry(bd, head, bd_le.le_list) { sdp->sd_log_num_revoke--; if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) { - submit_bh(WRITE_SYNC_PLUG, bh); + submit_bh(WRITE_SYNC, bh); bh = gfs2_log_get_buf(sdp); mh = (struct gfs2_meta_header *)bh->b_data; @@ -363,13 +367,27 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp) } *(__be64 *)(bh->b_data + offset) = cpu_to_be64(bd->bd_blkno); - kmem_cache_free(gfs2_bufdata_cachep, bd); - offset += sizeof(u64); } gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); - submit_bh(WRITE_SYNC_PLUG, bh); + submit_bh(WRITE_SYNC, bh); +} + +static void revoke_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) +{ + struct list_head *head = &sdp->sd_log_le_revoke; + struct gfs2_bufdata *bd; + struct gfs2_glock *gl; + + while (!list_empty(head)) { + bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); + list_del_init(&bd->bd_le.le_list); + gl = bd->bd_gl; + atomic_dec(&gl->gl_revokes); + clear_bit(GLF_LFLUSH, &gl->gl_flags); + kmem_cache_free(gfs2_bufdata_cachep, bd); + } } static void revoke_lo_before_scan(struct gfs2_jdesc *jd, @@ -571,7 +589,7 @@ static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh, ptr = bh_log_ptr(bh); get_bh(bh); - submit_bh(WRITE_SYNC_PLUG, bh); + submit_bh(WRITE_SYNC, bh); gfs2_log_lock(sdp); while(!list_empty(list)) { bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list); @@ -597,7 +615,7 @@ static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh, } else { bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh); } - submit_bh(WRITE_SYNC_PLUG, bh1); + submit_bh(WRITE_SYNC, bh1); gfs2_log_lock(sdp); ptr += 2; } @@ -745,6 +763,7 @@ const struct gfs2_log_operations gfs2_buf_lops = { const struct gfs2_log_operations gfs2_revoke_lops = { .lo_add = revoke_lo_add, .lo_before_commit = revoke_lo_before_commit, + .lo_after_commit = revoke_lo_after_commit, .lo_before_scan = revoke_lo_before_scan, .lo_scan_elements = revoke_lo_scan_elements, .lo_after_scan = revoke_lo_after_scan, |
