diff options
| -rw-r--r-- | fs/gfs2/incore.h | 9 | ||||
| -rw-r--r-- | fs/gfs2/log.c | 145 | ||||
| -rw-r--r-- | fs/gfs2/log.h | 1 | ||||
| -rw-r--r-- | fs/gfs2/lops.c | 242 | ||||
| -rw-r--r-- | fs/gfs2/meta_io.c | 55 | ||||
| -rw-r--r-- | fs/gfs2/meta_io.h | 3 | ||||
| -rw-r--r-- | fs/gfs2/ops_address.c | 11 | ||||
| -rw-r--r-- | fs/gfs2/ops_fstype.c | 3 | ||||
| -rw-r--r-- | fs/gfs2/ops_inode.c | 7 | ||||
| -rw-r--r-- | fs/gfs2/ops_super.c | 13 |
10 files changed, 269 insertions, 220 deletions
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 8aa5780..eaddfb5 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -341,12 +341,6 @@ struct gfs2_quota_data { unsigned long qd_last_touched; }; -struct gfs2_log_buf { - struct list_head lb_list; - struct buffer_head *lb_bh; - struct buffer_head *lb_real; -}; - struct gfs2_trans { unsigned long tr_ip; @@ -631,7 +625,8 @@ struct gfs2_sbd { unsigned long sd_log_flush_time; struct rw_semaphore sd_log_flush_lock; - struct list_head sd_log_flush_list; + atomic_t sd_log_in_flight; + wait_queue_head_t sd_log_flush_wait; unsigned int sd_log_flush_head; u64 sd_log_flush_wrapped; diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 4d04e6f..ee70467 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -104,11 +104,8 @@ static void gfs2_ail1_start_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai) gfs2_assert(sdp, bd->bd_ail == ai); if (!buffer_busy(bh)) { - if (!buffer_uptodate(bh)) { - gfs2_log_unlock(sdp); + if (!buffer_uptodate(bh)) gfs2_io_error_bh(sdp, bh); - gfs2_log_lock(sdp); - } list_move(&bd->bd_ail_st_list, &ai->ai_ail2_list); continue; } @@ -118,9 +115,16 @@ static void gfs2_ail1_start_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai) list_move(&bd->bd_ail_st_list, &ai->ai_ail1_list); + get_bh(bh); gfs2_log_unlock(sdp); - wait_on_buffer(bh); - ll_rw_block(WRITE, 1, &bh); + lock_buffer(bh); + if (test_clear_buffer_dirty(bh)) { + bh->b_end_io = end_buffer_write_sync; + submit_bh(WRITE, bh); + } else { + unlock_buffer(bh); + brelse(bh); + } gfs2_log_lock(sdp); retry = 1; @@ -446,10 +450,10 @@ static unsigned int current_tail(struct gfs2_sbd *sdp) return tail; } -static inline void log_incr_head(struct gfs2_sbd *sdp) +void gfs2_log_incr_head(struct gfs2_sbd *sdp) { if (sdp->sd_log_flush_head == sdp->sd_log_tail) - gfs2_assert_withdraw(sdp, sdp->sd_log_flush_head == sdp->sd_log_head); + BUG_ON(sdp->sd_log_flush_head != sdp->sd_log_head); if (++sdp->sd_log_flush_head == sdp->sd_jdesc->jd_blocks) { sdp->sd_log_flush_head = 0; @@ -458,6 +462,23 @@ static inline void log_incr_head(struct gfs2_sbd *sdp) } /** + * gfs2_log_write_endio - End of I/O for a log buffer + * @bh: The buffer head + * @uptodate: I/O Status + * + */ + +static void gfs2_log_write_endio(struct buffer_head *bh, int uptodate) +{ + struct gfs2_sbd *sdp = bh->b_private; + bh->b_private = NULL; + + end_buffer_write_sync(bh, uptodate); + if (atomic_dec_and_test(&sdp->sd_log_in_flight)) + wake_up(&sdp->sd_log_flush_wait); +} + +/** * gfs2_log_get_buf - Get and initialize a buffer to use for log control data * @sdp: The GFS2 superblock * @@ -467,25 +488,42 @@ static inline void log_incr_head(struct gfs2_sbd *sdp) struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp) { u64 blkno = log_bmap(sdp, sdp->sd_log_flush_head); - struct gfs2_log_buf *lb; struct buffer_head *bh; - lb = kzalloc(sizeof(struct gfs2_log_buf), GFP_NOFS | __GFP_NOFAIL); - list_add(&lb->lb_list, &sdp->sd_log_flush_list); - - bh = lb->lb_bh = sb_getblk(sdp->sd_vfs, blkno); + bh = sb_getblk(sdp->sd_vfs, blkno); lock_buffer(bh); memset(bh->b_data, 0, bh->b_size); set_buffer_uptodate(bh); clear_buffer_dirty(bh); - unlock_buffer(bh); - - log_incr_head(sdp); + gfs2_log_incr_head(sdp); + atomic_inc(&sdp->sd_log_in_flight); + bh->b_private = sdp; + bh->b_end_io = gfs2_log_write_endio; return bh; } /** + * gfs2_fake_write_endio - + * @bh: The buffer head + * @uptodate: The I/O Status + * + */ + +static void gfs2_fake_write_endio(struct buffer_head *bh, int uptodate) +{ + struct buffer_head *real_bh = bh->b_private; + struct gfs2_sbd *sdp = GFS2_SB(real_bh->b_page->mapping->host); + + end_buffer_write_sync(bh, uptodate); + free_buffer_head(bh); + unlock_buffer(real_bh); + brelse(real_bh); + if (atomic_dec_and_test(&sdp->sd_log_in_flight)) + wake_up(&sdp->sd_log_flush_wait); +} + +/** * gfs2_log_fake_buf - Build a fake buffer head to write metadata buffer to log * @sdp: the filesystem * @data: the data the buffer_head should point to @@ -497,22 +535,20 @@ struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp, struct buffer_head *real) { u64 blkno = log_bmap(sdp, sdp->sd_log_flush_head); - struct gfs2_log_buf *lb; struct buffer_head *bh; - lb = kzalloc(sizeof(struct gfs2_log_buf), GFP_NOFS | __GFP_NOFAIL); - list_add(&lb->lb_list, &sdp->sd_log_flush_list); - lb->lb_real = real; - - bh = lb->lb_bh = alloc_buffer_head(GFP_NOFS | __GFP_NOFAIL); + bh = alloc_buffer_head(GFP_NOFS | __GFP_NOFAIL); atomic_set(&bh->b_count, 1); - bh->b_state = (1 << BH_Mapped) | (1 << BH_Uptodate); + bh->b_state = (1 << BH_Mapped) | (1 << BH_Uptodate) | (1 << BH_Lock); set_bh_page(bh, real->b_page, bh_offset(real)); bh->b_blocknr = blkno; bh->b_size = sdp->sd_sb.sb_bsize; bh->b_bdev = sdp->sd_vfs->s_bdev; + bh->b_private = real; + bh->b_end_io = gfs2_fake_write_endio; - log_incr_head(sdp); + gfs2_log_incr_head(sdp); + atomic_inc(&sdp->sd_log_in_flight); return bh; } @@ -579,45 +615,24 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull) gfs2_assert_withdraw(sdp, !pull); sdp->sd_log_idle = (tail == sdp->sd_log_flush_head); - log_incr_head(sdp); + gfs2_log_incr_head(sdp); } static void log_flush_commit(struct gfs2_sbd *sdp) { - struct list_head *head = &sdp->sd_log_flush_list; - struct gfs2_log_buf *lb; - struct buffer_head *bh; - int flushcount = 0; - - while (!list_empty(head)) { - lb = list_entry(head->next, struct gfs2_log_buf, lb_list); - list_del(&lb->lb_list); - bh = lb->lb_bh; - - wait_on_buffer(bh); - if (!buffer_uptodate(bh)) - gfs2_io_error_bh(sdp, bh); - if (lb->lb_real) { - while (atomic_read(&bh->b_count) != 1) /* Grrrr... */ - schedule(); - free_buffer_head(bh); - } else - brelse(bh); - kfree(lb); - flushcount++; + DEFINE_WAIT(wait); + + if (atomic_read(&sdp->sd_log_in_flight)) { + do { + prepare_to_wait(&sdp->sd_log_flush_wait, &wait, + TASK_UNINTERRUPTIBLE); + if (atomic_read(&sdp->sd_log_in_flight)) + io_schedule(); + } while(atomic_read(&sdp->sd_log_in_flight)); + finish_wait(&sdp->sd_log_flush_wait, &wait); } - /* If nothing was journaled, the header is unplanned and unwanted. */ - if (flushcount) { - log_write_header(sdp, 0, 0); - } else { - unsigned int tail; - tail = current_tail(sdp); - - gfs2_ail1_empty(sdp, 0); - if (sdp->sd_log_tail != tail) - log_pull_tail(sdp, tail); - } + log_write_header(sdp, 0, 0); } static void gfs2_ordered_write(struct gfs2_sbd *sdp) @@ -698,10 +713,16 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl) INIT_LIST_HEAD(&ai->ai_ail1_list); INIT_LIST_HEAD(&ai->ai_ail2_list); - gfs2_assert_withdraw(sdp, - sdp->sd_log_num_buf + sdp->sd_log_num_databuf == - sdp->sd_log_commited_buf + - sdp->sd_log_commited_databuf); + if (sdp->sd_log_num_buf != sdp->sd_log_commited_buf) { + printk(KERN_INFO "GFS2: log buf %u %u\n", sdp->sd_log_num_buf, + sdp->sd_log_commited_buf); + gfs2_assert_withdraw(sdp, 0); + } + if (sdp->sd_log_num_databuf != sdp->sd_log_commited_databuf) { + printk(KERN_INFO "GFS2: log databuf %u %u\n", + sdp->sd_log_num_databuf, sdp->sd_log_commited_databuf); + gfs2_assert_withdraw(sdp, 0); + } gfs2_assert_withdraw(sdp, sdp->sd_log_num_revoke == sdp->sd_log_commited_revoke); @@ -713,7 +734,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl) lops_before_commit(sdp); gfs2_ordered_wait(sdp); - if (!list_empty(&sdp->sd_log_flush_list)) + if (sdp->sd_log_head != sdp->sd_log_flush_head) log_flush_commit(sdp); else if (sdp->sd_log_tail != current_tail(sdp) && !sdp->sd_log_idle){ gfs2_log_lock(sdp); diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h index 6394235..dae2824 100644 --- a/fs/gfs2/log.h +++ b/fs/gfs2/log.h @@ -52,6 +52,7 @@ int gfs2_ail1_empty(struct gfs2_sbd *sdp, int flags); int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks); void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks); +void gfs2_log_incr_head(struct gfs2_sbd *sdp); struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp); struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp, diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index 342c10e..6c27cea 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -91,6 +91,39 @@ static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh, unlock_buffer(bh); } + +static inline struct gfs2_log_descriptor *bh_log_desc(struct buffer_head *bh) +{ + return (struct gfs2_log_descriptor *)bh->b_data; +} + +static inline __be64 *bh_log_ptr(struct buffer_head *bh) +{ + struct gfs2_log_descriptor *ld = bh_log_desc(bh); + return (__force __be64 *)(ld + 1); +} + +static inline __be64 *bh_ptr_end(struct buffer_head *bh) +{ + return (__force __be64 *)(bh->b_data + bh->b_size); +} + + +static struct buffer_head *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type) +{ + struct buffer_head *bh = gfs2_log_get_buf(sdp); + struct gfs2_log_descriptor *ld = bh_log_desc(bh); + ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); + ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); + ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); + ld->ld_type = cpu_to_be32(ld_type); + ld->ld_length = 0; + ld->ld_data1 = 0; + ld->ld_data2 = 0; + memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); + return bh; +} + static void __glock_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) { struct gfs2_glock *gl; @@ -181,7 +214,6 @@ static void buf_lo_before_commit(struct gfs2_sbd *sdp) struct gfs2_log_descriptor *ld; struct gfs2_bufdata *bd1 = NULL, *bd2; unsigned int total; - unsigned int offset = BUF_OFFSET; unsigned int limit; unsigned int num; unsigned n; @@ -198,18 +230,12 @@ static void buf_lo_before_commit(struct gfs2_sbd *sdp) if (total > limit) num = limit; gfs2_log_unlock(sdp); - bh = gfs2_log_get_buf(sdp); + bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_METADATA); gfs2_log_lock(sdp); - ld = (struct gfs2_log_descriptor *)bh->b_data; - ptr = (__be64 *)(bh->b_data + offset); - ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); - ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); - ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); - ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_METADATA); + ld = bh_log_desc(bh); + ptr = bh_log_ptr(bh); ld->ld_length = cpu_to_be32(num + 1); ld->ld_data1 = cpu_to_be32(num); - ld->ld_data2 = cpu_to_be32(0); - memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); n = 0; list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, @@ -220,17 +246,17 @@ static void buf_lo_before_commit(struct gfs2_sbd *sdp) } gfs2_log_unlock(sdp); - set_buffer_dirty(bh); - ll_rw_block(WRITE, 1, &bh); + submit_bh(WRITE, bh); gfs2_log_lock(sdp); n = 0; list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, bd_le.le_list) { + get_bh(bd2->bd_bh); gfs2_log_unlock(sdp); + lock_buffer(bd2->bd_bh); bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); - set_buffer_dirty(bh); - ll_rw_block(WRITE, 1, &bh); + submit_bh(WRITE, bh); gfs2_log_lock(sdp); if (++n >= num) break; @@ -359,17 +385,11 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp) if (!sdp->sd_log_num_revoke) return; - bh = gfs2_log_get_buf(sdp); - ld = (struct gfs2_log_descriptor *)bh->b_data; - ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); - ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); - ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); - ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_REVOKE); + bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE); + ld = bh_log_desc(bh); ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, sizeof(u64))); ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); - ld->ld_data2 = cpu_to_be32(0); - memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); offset = sizeof(struct gfs2_log_descriptor); while (!list_empty(head)) { @@ -378,8 +398,7 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp) sdp->sd_log_num_revoke--; if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) { - set_buffer_dirty(bh); - ll_rw_block(WRITE, 1, &bh); + submit_bh(WRITE, bh); bh = gfs2_log_get_buf(sdp); mh = (struct gfs2_meta_header *)bh->b_data; @@ -396,8 +415,7 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp) } gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); - set_buffer_dirty(bh); - ll_rw_block(WRITE, 1, &bh); + submit_bh(WRITE, bh); } static void revoke_lo_before_scan(struct gfs2_jdesc *jd, @@ -562,118 +580,110 @@ out: unlock_buffer(bd->bd_bh); } -static int gfs2_check_magic(struct buffer_head *bh) +static void gfs2_check_magic(struct buffer_head *bh) { - struct page *page = bh->b_page; void *kaddr; __be32 *ptr; - int rv = 0; - kaddr = kmap_atomic(page, KM_USER0); + clear_buffer_escaped(bh); + kaddr = kmap_atomic(bh->b_page, KM_USER0); ptr = kaddr + bh_offset(bh); if (*ptr == cpu_to_be32(GFS2_MAGIC)) - rv = 1; + set_buffer_escaped(bh); kunmap_atomic(kaddr, KM_USER0); - - return rv; } -/** - * databuf_lo_before_commit - Scan the data buffers, writing as we go - * - */ - -static void databuf_lo_before_commit(struct gfs2_sbd *sdp) +static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh, + struct list_head *list, struct list_head *done, + unsigned int n) { - struct gfs2_bufdata *bd1 = NULL, *bd2; - struct buffer_head *bh = NULL,*bh1 = NULL; + struct buffer_head *bh1; struct gfs2_log_descriptor *ld; - unsigned int limit; - unsigned int total; - unsigned int num, n; - __be64 *ptr = NULL; - int magic; + struct gfs2_bufdata *bd; + __be64 *ptr; + if (!bh) + return; - limit = databuf_limit(sdp); + ld = bh_log_desc(bh); + ld->ld_length = cpu_to_be32(n + 1); + ld->ld_data1 = cpu_to_be32(n); + ptr = bh_log_ptr(bh); + + get_bh(bh); + submit_bh(WRITE, bh); gfs2_log_lock(sdp); - total = sdp->sd_log_num_databuf; - bd2 = bd1 = list_prepare_entry(bd1, &sdp->sd_log_le_databuf, - bd_le.le_list); - while(total) { - num = total; - if (num > limit) - num = limit; - - gfs2_log_unlock(sdp); - bh = gfs2_log_get_buf(sdp); - gfs2_log_lock(sdp); - - ld = (struct gfs2_log_descriptor *)bh->b_data; - ptr = (__be64 *)(bh->b_data + DATABUF_OFFSET); - ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); - ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); - ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); - ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_JDATA); - ld->ld_length = cpu_to_be32(num + 1); - ld->ld_data1 = cpu_to_be32(num); - ld->ld_data2 = cpu_to_be32(0); - memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); - - n = 0; - list_for_each_entry_continue(bd1, &sdp->sd_log_le_databuf, - bd_le.le_list) { - bh1 = bd1->bd_bh; - - magic = gfs2_check_magic(bh1); - *ptr++ = cpu_to_be64(bh1->b_blocknr); - *ptr++ = cpu_to_be64((__u64)magic); - clear_buffer_escaped(bh1); - if (unlikely(magic != 0)) - set_buffer_escaped(bh1); - if (++n >= num) - break; + while(!list_empty(list)) { + bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list); + list_move_tail(&bd->bd_le.le_list, done); + get_bh(bd->bd_bh); + while (be64_to_cpu(*ptr) != bd->bd_bh->b_blocknr) { + gfs2_log_incr_head(sdp); + ptr += 2; } gfs2_log_unlock(sdp); - if (bh) { - set_buffer_dirty(bh); - ll_rw_block(WRITE, 1, &bh); - bh = NULL; - ptr = NULL; + lock_buffer(bd->bd_bh); + if (buffer_escaped(bd->bd_bh)) { + void *kaddr; + bh1 = gfs2_log_get_buf(sdp); + kaddr = kmap_atomic(bd->bd_bh->b_page, KM_USER0); + memcpy(bh1->b_data, kaddr + bh_offset(bd->bd_bh), + bh1->b_size); + kunmap_atomic(kaddr, KM_USER0); + *(__be32 *)bh1->b_data = 0; + clear_buffer_escaped(bd->bd_bh); + unlock_buffer(bd->bd_bh); + brelse(bd->bd_bh); + } else { + bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh); } - n = 0; + submit_bh(WRITE, bh1); gfs2_log_lock(sdp); - list_for_each_entry_continue(bd2, &sdp->sd_log_le_databuf, - bd_le.le_list) { - if (!bd2->bd_bh) - continue; - /* copy buffer if it needs escaping */ + ptr += 2; + } + gfs2_log_unlock(sdp); + brelse(bh); +} + +/** + * databuf_lo_before_commit - Scan the data buffers, writing as we go + * + */ + +static void databuf_lo_before_commit(struct gfs2_sbd *sdp) +{ + struct gfs2_bufdata *bd = NULL; + struct buffer_head *bh = NULL; + unsigned int n = 0; + __be64 *ptr = NULL, *end = NULL; + LIST_HEAD(processed); + LIST_HEAD(in_progress); + + gfs2_log_lock(sdp); + while (!list_empty(&sdp->sd_log_le_databuf)) { + if (ptr == end) { gfs2_log_unlock(sdp); - if (unlikely(buffer_escaped(bd2->bd_bh))) { - void *kaddr; - struct page *page = bd2->bd_bh->b_page; - bh = gfs2_log_get_buf(sdp); - kaddr = kmap_atomic(page, KM_USER0); - memcpy(bh->b_data, - kaddr + bh_offset(bd2->bd_bh), - sdp->sd_sb.sb_bsize); - kunmap_atomic(kaddr, KM_USER0); - *(__be32 *)bh->b_data = 0; - } else { - bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); - } - set_buffer_dirty(bh); - ll_rw_block(WRITE, 1, &bh); + gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); + n = 0; + bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_JDATA); + ptr = bh_log_ptr(bh); + end = bh_ptr_end(bh) - 1; gfs2_log_lock(sdp); - if (++n >= num) - break; + continue; } - bh = NULL; - BUG_ON(total < num); - total -= num; + bd = list_entry(sdp->sd_log_le_databuf.next, struct gfs2_bufdata, bd_le.le_list); + list_move_tail(&bd->bd_le.le_list, &in_progress); + gfs2_check_magic(bd->bd_bh); + *ptr++ = cpu_to_be64(bd->bd_bh->b_blocknr); + *ptr++ = cpu_to_be64(buffer_escaped(bh) ? 1 : 0); + n++; } gfs2_log_unlock(sdp); + gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); + gfs2_log_lock(sdp); + list_splice(&processed, &sdp->sd_log_le_databuf); + gfs2_log_unlock(sdp); } static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, @@ -807,10 +817,10 @@ const struct gfs2_log_operations gfs2_databuf_lops = { const struct gfs2_log_operations *gfs2_log_ops[] = { &gfs2_glock_lops, + &gfs2_databuf_lops, &gfs2_buf_lops, - &gfs2_revoke_lops, &gfs2_rg_lops, - &gfs2_databuf_lops, + &gfs2_revoke_lops, NULL, }; diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 19097bc7..1d80f2d 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -297,6 +297,37 @@ void gfs2_attach_bufdata(struct gfs2_glock *gl, struct buffer_head *bh, unlock_page(bh->b_page); } +void gfs2_remove_from_journal(struct buffer_head *bh, struct gfs2_trans *tr, int meta) +{ + struct gfs2_sbd *sdp = GFS2_SB(bh->b_page->mapping->host); + struct gfs2_bufdata *bd = bh->b_private; + if (test_clear_buffer_pinned(bh)) { + list_del_init(&bd->bd_le.le_list); + if (meta) { + gfs2_assert_warn(sdp, sdp->sd_log_num_buf); + sdp->sd_log_num_buf--; + tr->tr_num_buf_rm++; + } else { + gfs2_assert_warn(sdp, sdp->sd_log_num_databuf); + sdp->sd_log_num_databuf--; + tr->tr_num_databuf_rm++; + } + tr->tr_touched = 1; + brelse(bh); + } + if (bd) { + if (bd->bd_ail) { + gfs2_remove_from_ail(NULL, bd); + bh->b_private = NULL; + bd->bd_bh = NULL; + bd->bd_blkno = bh->b_blocknr; + gfs2_trans_add_revoke(sdp, bd); + } + } + clear_buffer_dirty(bh); + clear_buffer_uptodate(bh); +} + /** * gfs2_meta_wipe - make inode's buffers so they aren't dirty/pinned anymore * @ip: the inode who owns the buffers @@ -313,33 +344,11 @@ void gfs2_meta_wipe(struct gfs2_inode *ip, u64 bstart, u32 blen) while (blen) { bh = getbuf(ip->i_gl, bstart, NO_CREATE); if (bh) { - struct gfs2_bufdata *bd; - lock_buffer(bh); gfs2_log_lock(sdp); - bd = bh->b_private; - if (test_clear_buffer_pinned(bh)) { - struct gfs2_trans *tr = current->journal_info; - list_del_init(&bd->bd_le.le_list); - gfs2_assert_warn(sdp, sdp->sd_log_num_buf); - sdp->sd_log_num_buf--; - tr->tr_num_buf_rm++; - brelse(bh); - } - if (bd) { - if (bd->bd_ail) { - gfs2_remove_from_ail(NULL, bd); - bh->b_private = NULL; - bd->bd_bh = NULL; - bd->bd_blkno = bh->b_blocknr; - gfs2_trans_add_revoke(sdp, bd); - } - } - clear_buffer_dirty(bh); - clear_buffer_uptodate(bh); + gfs2_remove_from_journal(bh, current->journal_info, 1); gfs2_log_unlock(sdp); unlock_buffer(bh); - brelse(bh); } diff --git a/fs/gfs2/meta_io.h b/fs/gfs2/meta_io.h index fd67f07..b704822 100644 --- a/fs/gfs2/meta_io.h +++ b/fs/gfs2/meta_io.h @@ -51,6 +51,9 @@ int gfs2_meta_wait(struct gfs2_sbd *sdp, struct buffer_head *bh); void gfs2_attach_bufdata(struct gfs2_glock *gl, struct buffer_head *bh, int meta); +void gfs2_remove_from_journal(struct buffer_head *bh, struct gfs2_trans *tr, + int meta); + void gfs2_meta_wipe(struct gfs2_inode *ip, u64 bstart, u32 blen); void gfs2_meta_cache_flush(struct gfs2_inode *ip); diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c index dd1ea49..b7baf18 100644 --- a/fs/gfs2/ops_address.c +++ b/fs/gfs2/ops_address.c @@ -414,7 +414,8 @@ static int gfs2_prepare_write(struct file *file, struct page *page, if (ind_blocks || data_blocks) rblocks += RES_STATFS + RES_QUOTA; - error = gfs2_trans_begin(sdp, rblocks, 0); + error = gfs2_trans_begin(sdp, rblocks, + PAGE_CACHE_SIZE/sdp->sd_sb.sb_bsize); if (error) goto out_trans_fail; @@ -625,10 +626,10 @@ static void gfs2_discard(struct gfs2_sbd *sdp, struct buffer_head *bh) clear_buffer_dirty(bh); bd = bh->b_private; if (bd) { - if (!list_empty(&bd->bd_le.le_list)) { - if (!buffer_pinned(bh)) - list_del_init(&bd->bd_le.le_list); - } + if (!list_empty(&bd->bd_le.le_list) && !buffer_pinned(bh)) + list_del_init(&bd->bd_le.le_list); + else + gfs2_remove_from_journal(bh, current->journal_info, 0); } bh->b_bdev = NULL; clear_buffer_mapped(bh); diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 35f3dfa..1ac9afa 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -89,7 +89,8 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) INIT_LIST_HEAD(&sdp->sd_ail2_list); init_rwsem(&sdp->sd_log_flush_lock); - INIT_LIST_HEAD(&sdp->sd_log_flush_list); + atomic_set(&sdp->sd_log_in_flight, 0); + init_waitqueue_head(&sdp->sd_log_flush_wait); INIT_LIST_HEAD(&sdp->sd_revoke_list); diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c index 2cbe5a3..291f0c7 100644 --- a/fs/gfs2/ops_inode.c +++ b/fs/gfs2/ops_inode.c @@ -905,12 +905,17 @@ static int gfs2_permission(struct inode *inode, int mask, struct nameidata *nd) static int setattr_size(struct inode *inode, struct iattr *attr) { struct gfs2_inode *ip = GFS2_I(inode); + struct gfs2_sbd *sdp = GFS2_SB(inode); int error; if (attr->ia_size != ip->i_di.di_size) { - error = vmtruncate(inode, attr->ia_size); + error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks); if (error) return error; + error = vmtruncate(inode, attr->ia_size); + gfs2_trans_end(sdp); + if (error) + return error; } error = gfs2_truncatei(ip, attr->ia_size); diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c index 4316690..950f314 100644 --- a/fs/gfs2/ops_super.c +++ b/fs/gfs2/ops_super.c @@ -455,12 +455,15 @@ static void gfs2_delete_inode(struct inode *inode) } error = gfs2_dinode_dealloc(ip); - /* - * Must do this before unlock to avoid trying to write back - * potentially dirty data now that inode no longer exists - * on disk. - */ + if (error) + goto out_unlock; + + error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks); + if (error) + goto out_unlock; + /* Needs to be done before glock release & also in a transaction */ truncate_inode_pages(&inode->i_data, 0); + gfs2_trans_end(sdp); out_unlock: gfs2_glock_dq(&ip->i_iopen_gh); |