aboutsummaryrefslogtreecommitdiffstats
path: root/fs/btrfs/file.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/btrfs/file.c')
-rw-r--r--fs/btrfs/file.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 75899a01dded..bef020451525 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -298,6 +298,7 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
298 struct btrfs_path *path; 298 struct btrfs_path *path;
299 struct btrfs_key key; 299 struct btrfs_key key;
300 struct btrfs_key new_key; 300 struct btrfs_key new_key;
301 u64 ino = btrfs_ino(inode);
301 u64 search_start = start; 302 u64 search_start = start;
302 u64 disk_bytenr = 0; 303 u64 disk_bytenr = 0;
303 u64 num_bytes = 0; 304 u64 num_bytes = 0;
@@ -318,14 +319,14 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
318 319
319 while (1) { 320 while (1) {
320 recow = 0; 321 recow = 0;
321 ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino, 322 ret = btrfs_lookup_file_extent(trans, root, path, ino,
322 search_start, -1); 323 search_start, -1);
323 if (ret < 0) 324 if (ret < 0)
324 break; 325 break;
325 if (ret > 0 && path->slots[0] > 0 && search_start == start) { 326 if (ret > 0 && path->slots[0] > 0 && search_start == start) {
326 leaf = path->nodes[0]; 327 leaf = path->nodes[0];
327 btrfs_item_key_to_cpu(leaf, &key, path->slots[0] - 1); 328 btrfs_item_key_to_cpu(leaf, &key, path->slots[0] - 1);
328 if (key.objectid == inode->i_ino && 329 if (key.objectid == ino &&
329 key.type == BTRFS_EXTENT_DATA_KEY) 330 key.type == BTRFS_EXTENT_DATA_KEY)
330 path->slots[0]--; 331 path->slots[0]--;
331 } 332 }
@@ -346,7 +347,7 @@ next_slot:
346 } 347 }
347 348
348 btrfs_item_key_to_cpu(leaf, &key, path->slots[0]); 349 btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
349 if (key.objectid > inode->i_ino || 350 if (key.objectid > ino ||
350 key.type > BTRFS_EXTENT_DATA_KEY || key.offset >= end) 351 key.type > BTRFS_EXTENT_DATA_KEY || key.offset >= end)
351 break; 352 break;
352 353
@@ -592,6 +593,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
592 int del_slot = 0; 593 int del_slot = 0;
593 int recow; 594 int recow;
594 int ret; 595 int ret;
596 u64 ino = btrfs_ino(inode);
595 597
596 btrfs_drop_extent_cache(inode, start, end - 1, 0); 598 btrfs_drop_extent_cache(inode, start, end - 1, 0);
597 599
@@ -600,7 +602,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
600again: 602again:
601 recow = 0; 603 recow = 0;
602 split = start; 604 split = start;
603 key.objectid = inode->i_ino; 605 key.objectid = ino;
604 key.type = BTRFS_EXTENT_DATA_KEY; 606 key.type = BTRFS_EXTENT_DATA_KEY;
605 key.offset = split; 607 key.offset = split;
606 608
@@ -612,8 +614,7 @@ again:
612 614
613 leaf = path->nodes[0]; 615 leaf = path->nodes[0];
614 btrfs_item_key_to_cpu(leaf, &key, path->slots[0]); 616 btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
615 BUG_ON(key.objectid != inode->i_ino || 617 BUG_ON(key.objectid != ino || key.type != BTRFS_EXTENT_DATA_KEY);
616 key.type != BTRFS_EXTENT_DATA_KEY);
617 fi = btrfs_item_ptr(leaf, path->slots[0], 618 fi = btrfs_item_ptr(leaf, path->slots[0],
618 struct btrfs_file_extent_item); 619 struct btrfs_file_extent_item);
619 BUG_ON(btrfs_file_extent_type(leaf, fi) != 620 BUG_ON(btrfs_file_extent_type(leaf, fi) !=
@@ -630,7 +631,7 @@ again:
630 other_start = 0; 631 other_start = 0;
631 other_end = start; 632 other_end = start;
632 if (extent_mergeable(leaf, path->slots[0] - 1, 633 if (extent_mergeable(leaf, path->slots[0] - 1,
633 inode->i_ino, bytenr, orig_offset, 634 ino, bytenr, orig_offset,
634 &other_start, &other_end)) { 635 &other_start, &other_end)) {
635 new_key.offset = end; 636 new_key.offset = end;
636 btrfs_set_item_key_safe(trans, root, path, &new_key); 637 btrfs_set_item_key_safe(trans, root, path, &new_key);
@@ -653,7 +654,7 @@ again:
653 other_start = end; 654 other_start = end;
654 other_end = 0; 655 other_end = 0;
655 if (extent_mergeable(leaf, path->slots[0] + 1, 656 if (extent_mergeable(leaf, path->slots[0] + 1,
656 inode->i_ino, bytenr, orig_offset, 657 ino, bytenr, orig_offset,
657 &other_start, &other_end)) { 658 &other_start, &other_end)) {
658 fi = btrfs_item_ptr(leaf, path->slots[0], 659 fi = btrfs_item_ptr(leaf, path->slots[0],
659 struct btrfs_file_extent_item); 660 struct btrfs_file_extent_item);
@@ -702,7 +703,7 @@ again:
702 703
703 ret = btrfs_inc_extent_ref(trans, root, bytenr, num_bytes, 0, 704 ret = btrfs_inc_extent_ref(trans, root, bytenr, num_bytes, 0,
704 root->root_key.objectid, 705 root->root_key.objectid,
705 inode->i_ino, orig_offset); 706 ino, orig_offset);
706 BUG_ON(ret); 707 BUG_ON(ret);
707 708
708 if (split == start) { 709 if (split == start) {
@@ -718,7 +719,7 @@ again:
718 other_start = end; 719 other_start = end;
719 other_end = 0; 720 other_end = 0;
720 if (extent_mergeable(leaf, path->slots[0] + 1, 721 if (extent_mergeable(leaf, path->slots[0] + 1,
721 inode->i_ino, bytenr, orig_offset, 722 ino, bytenr, orig_offset,
722 &other_start, &other_end)) { 723 &other_start, &other_end)) {
723 if (recow) { 724 if (recow) {
724 btrfs_release_path(root, path); 725 btrfs_release_path(root, path);
@@ -729,13 +730,13 @@ again:
729 del_nr++; 730 del_nr++;
730 ret = btrfs_free_extent(trans, root, bytenr, num_bytes, 731 ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
731 0, root->root_key.objectid, 732 0, root->root_key.objectid,
732 inode->i_ino, orig_offset); 733 ino, orig_offset);
733 BUG_ON(ret); 734 BUG_ON(ret);
734 } 735 }
735 other_start = 0; 736 other_start = 0;
736 other_end = start; 737 other_end = start;
737 if (extent_mergeable(leaf, path->slots[0] - 1, 738 if (extent_mergeable(leaf, path->slots[0] - 1,
738 inode->i_ino, bytenr, orig_offset, 739 ino, bytenr, orig_offset,
739 &other_start, &other_end)) { 740 &other_start, &other_end)) {
740 if (recow) { 741 if (recow) {
741 btrfs_release_path(root, path); 742 btrfs_release_path(root, path);
@@ -746,7 +747,7 @@ again:
746 del_nr++; 747 del_nr++;
747 ret = btrfs_free_extent(trans, root, bytenr, num_bytes, 748 ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
748 0, root->root_key.objectid, 749 0, root->root_key.objectid,
749 inode->i_ino, orig_offset); 750 ino, orig_offset);
750 BUG_ON(ret); 751 BUG_ON(ret);
751 } 752 }
752 if (del_nr == 0) { 753 if (del_nr == 0) {