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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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7
fs/btrfs/extent-tree.c
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@@ -6271,6 +6271,8 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
BUG_ON(!wc);
trans = btrfs_start_transaction(tree_root, 0);
BUG_ON(IS_ERR(trans));
if (block_rsv)
trans->block_rsv = block_rsv;
@@ -6368,6 +6370,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
btrfs_end_transaction_throttle(trans, tree_root);
trans = btrfs_start_transaction(tree_root, 0);
BUG_ON(IS_ERR(trans));
if (block_rsv)
trans->block_rsv = block_rsv;
}
@@ -7587,7 +7590,7 @@ int btrfs_cleanup_reloc_trees(struct btrfs_root *root)
if (found) {
trans = btrfs_start_transaction(root, 1);
BUG_ON(!trans);
BUG_ON(IS_ERR(trans));
ret = btrfs_commit_transaction(trans, root);
BUG_ON(ret);
}
@@ -7831,7 +7834,7 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root,
trans = btrfs_start_transaction(extent_root, 1);
BUG_ON(!trans);
BUG_ON(IS_ERR(trans));
if (extent_key->objectid == 0) {
ret = del_extent_zero(trans, extent_root, path, extent_key);