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btrfs: fix return value check of btrfs_start_transaction()

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The error check of btrfs_start_transaction() is added, and the mistake
of the error check on several places is corrected.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Tsutomu Itoh
2011-01-20 06:19:37 +00:00
committed by Chris Mason
parent 5df6708348
commit 98d5dc13e7
7 changed files with 37 additions and 6 deletions
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fs/btrfs/relocation.c
+3
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@@ -2028,6 +2028,7 @@ static noinline_for_stack int merge_reloc_root(struct reloc_control *rc,
while (1) {
trans = btrfs_start_transaction(root, 0);
BUG_ON(IS_ERR(trans));
trans->block_rsv = rc->block_rsv;
ret = btrfs_block_rsv_check(trans, root, rc->block_rsv,
@@ -3665,6 +3666,7 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
while (1) {
trans = btrfs_start_transaction(rc->extent_root, 0);
BUG_ON(IS_ERR(trans));
if (update_backref_cache(trans, &rc->backref_cache)) {
btrfs_end_transaction(trans, rc->extent_root);
@@ -4033,6 +4035,7 @@ static noinline_for_stack int mark_garbage_root(struct btrfs_root *root)
int ret;
trans = btrfs_start_transaction(root->fs_info->tree_root, 0);
BUG_ON(IS_ERR(trans));
memset(&root->root_item.drop_progress, 0,
sizeof(root->root_item.drop_progress));