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-rw-r--r--fs/btrfs/disk-io.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 0be044bb619..dc95f636a11 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -83,6 +83,7 @@ struct async_submit_bio {
83 extent_submit_bio_hook_t *submit_bio_hook; 83 extent_submit_bio_hook_t *submit_bio_hook;
84 int rw; 84 int rw;
85 int mirror_num; 85 int mirror_num;
86 unsigned long bio_flags;
86 struct btrfs_work work; 87 struct btrfs_work work;
87}; 88};
88 89
@@ -115,6 +116,7 @@ struct extent_map *btree_get_extent(struct inode *inode, struct page *page,
115 } 116 }
116 em->start = 0; 117 em->start = 0;
117 em->len = (u64)-1; 118 em->len = (u64)-1;
119 em->block_len = (u64)-1;
118 em->block_start = 0; 120 em->block_start = 0;
119 em->bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; 121 em->bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
120 122
@@ -469,12 +471,13 @@ static void run_one_async_submit(struct btrfs_work *work)
469 wake_up(&fs_info->async_submit_wait); 471 wake_up(&fs_info->async_submit_wait);
470 472
471 async->submit_bio_hook(async->inode, async->rw, async->bio, 473 async->submit_bio_hook(async->inode, async->rw, async->bio,
472 async->mirror_num); 474 async->mirror_num, async->bio_flags);
473 kfree(async); 475 kfree(async);
474} 476}
475 477
476int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode, 478int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
477 int rw, struct bio *bio, int mirror_num, 479 int rw, struct bio *bio, int mirror_num,
480 unsigned long bio_flags,
478 extent_submit_bio_hook_t *submit_bio_hook) 481 extent_submit_bio_hook_t *submit_bio_hook)
479{ 482{
480 struct async_submit_bio *async; 483 struct async_submit_bio *async;
@@ -491,6 +494,7 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
491 async->submit_bio_hook = submit_bio_hook; 494 async->submit_bio_hook = submit_bio_hook;
492 async->work.func = run_one_async_submit; 495 async->work.func = run_one_async_submit;
493 async->work.flags = 0; 496 async->work.flags = 0;
497 async->bio_flags = bio_flags;
494 498
495 while(atomic_read(&fs_info->async_submit_draining) && 499 while(atomic_read(&fs_info->async_submit_draining) &&
496 atomic_read(&fs_info->nr_async_submits)) { 500 atomic_read(&fs_info->nr_async_submits)) {
@@ -530,7 +534,7 @@ static int btree_csum_one_bio(struct bio *bio)
530} 534}
531 535
532static int __btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, 536static int __btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
533 int mirror_num) 537 int mirror_num, unsigned long bio_flags)
534{ 538{
535 struct btrfs_root *root = BTRFS_I(inode)->root; 539 struct btrfs_root *root = BTRFS_I(inode)->root;
536 int ret; 540 int ret;
@@ -556,17 +560,17 @@ static int __btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
556} 560}
557 561
558static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, 562static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
559 int mirror_num) 563 int mirror_num, unsigned long bio_flags)
560{ 564{
561 /* 565 /*
562 * kthread helpers are used to submit writes so that checksumming 566 * kthread helpers are used to submit writes so that checksumming
563 * can happen in parallel across all CPUs 567 * can happen in parallel across all CPUs
564 */ 568 */
565 if (!(rw & (1 << BIO_RW))) { 569 if (!(rw & (1 << BIO_RW))) {
566 return __btree_submit_bio_hook(inode, rw, bio, mirror_num); 570 return __btree_submit_bio_hook(inode, rw, bio, mirror_num, 0);
567 } 571 }
568 return btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info, 572 return btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
569 inode, rw, bio, mirror_num, 573 inode, rw, bio, mirror_num, 0,
570 __btree_submit_bio_hook); 574 __btree_submit_bio_hook);
571} 575}
572 576
@@ -1407,6 +1411,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
1407 fs_info->btree_inode = new_inode(sb); 1411 fs_info->btree_inode = new_inode(sb);
1408 fs_info->btree_inode->i_ino = 1; 1412 fs_info->btree_inode->i_ino = 1;
1409 fs_info->btree_inode->i_nlink = 1; 1413 fs_info->btree_inode->i_nlink = 1;
1414
1410 fs_info->thread_pool_size = min(num_online_cpus() + 2, 8); 1415 fs_info->thread_pool_size = min(num_online_cpus() + 2, 8);
1411 1416
1412 INIT_LIST_HEAD(&fs_info->ordered_extents); 1417 INIT_LIST_HEAD(&fs_info->ordered_extents);
@@ -1508,6 +1513,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
1508 */ 1513 */
1509 btrfs_init_workers(&fs_info->workers, "worker", 1514 btrfs_init_workers(&fs_info->workers, "worker",
1510 fs_info->thread_pool_size); 1515 fs_info->thread_pool_size);
1516
1511 btrfs_init_workers(&fs_info->submit_workers, "submit", 1517 btrfs_init_workers(&fs_info->submit_workers, "submit",
1512 min_t(u64, fs_devices->num_devices, 1518 min_t(u64, fs_devices->num_devices,
1513 fs_info->thread_pool_size)); 1519 fs_info->thread_pool_size));
@@ -1559,6 +1565,8 @@ struct btrfs_root *open_ctree(struct super_block *sb,
1559 } 1565 }
1560 1566
1561 fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super); 1567 fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super);
1568 fs_info->bdi.ra_pages = max(fs_info->bdi.ra_pages,
1569 4 * 1024 * 1024 / PAGE_CACHE_SIZE);
1562 1570
1563 nodesize = btrfs_super_nodesize(disk_super); 1571 nodesize = btrfs_super_nodesize(disk_super);
1564 leafsize = btrfs_super_leafsize(disk_super); 1572 leafsize = btrfs_super_leafsize(disk_super);