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Diffstat (limited to 'fs/btrfs/file-item.c')
-rw-r--r--fs/btrfs/file-item.c38
1 files changed, 22 insertions, 16 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index a6a9d4e8b491..90d4ee52cd45 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -193,7 +193,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
u32 item_size;
if (item)
- btrfs_release_path(root, path);
+ btrfs_release_path(path);
item = btrfs_lookup_csum(NULL, root->fs_info->csum_root,
path, disk_bytenr, 0);
if (IS_ERR(item)) {
@@ -208,12 +208,13 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
EXTENT_NODATASUM, GFP_NOFS);
} else {
printk(KERN_INFO "btrfs no csum found "
- "for inode %lu start %llu\n",
- inode->i_ino,
+ "for inode %llu start %llu\n",
+ (unsigned long long)
+ btrfs_ino(inode),
(unsigned long long)offset);
}
item = NULL;
- btrfs_release_path(root, path);
+ btrfs_release_path(path);
goto found;
}
btrfs_item_key_to_cpu(path->nodes[0], &found_key,
@@ -266,7 +267,7 @@ int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode,
}
int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
- struct list_head *list)
+ struct list_head *list, int search_commit)
{
struct btrfs_key key;
struct btrfs_path *path;
@@ -283,6 +284,12 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
path = btrfs_alloc_path();
BUG_ON(!path);
+ if (search_commit) {
+ path->skip_locking = 1;
+ path->reada = 2;
+ path->search_commit_root = 1;
+ }
+
key.objectid = BTRFS_EXTENT_CSUM_OBJECTID;
key.offset = start;
key.type = BTRFS_EXTENT_CSUM_KEY;
@@ -495,7 +502,6 @@ static noinline int truncate_one_csum(struct btrfs_trans_handle *trans,
u32 new_size = (bytenr - key->offset) >> blocksize_bits;
new_size *= csum_size;
ret = btrfs_truncate_item(trans, root, path, new_size, 1);
- BUG_ON(ret);
} else if (key->offset >= bytenr && csum_end > end_byte &&
end_byte > key->offset) {
/*
@@ -508,7 +514,6 @@ static noinline int truncate_one_csum(struct btrfs_trans_handle *trans,
new_size *= csum_size;
ret = btrfs_truncate_item(trans, root, path, new_size, 0);
- BUG_ON(ret);
key->offset = end_byte;
ret = btrfs_set_item_key_safe(trans, root, path, key);
@@ -551,10 +556,10 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
if (ret > 0) {
if (path->slots[0] == 0)
- goto out;
+ break;
path->slots[0]--;
} else if (ret < 0) {
- goto out;
+ break;
}
leaf = path->nodes[0];
@@ -579,7 +584,8 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
/* delete the entire item, it is inside our range */
if (key.offset >= bytenr && csum_end <= end_byte) {
ret = btrfs_del_item(trans, root, path);
- BUG_ON(ret);
+ if (ret)
+ goto out;
if (key.offset == bytenr)
break;
} else if (key.offset < bytenr && csum_end > end_byte) {
@@ -631,11 +637,12 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
if (key.offset < bytenr)
break;
}
- btrfs_release_path(root, path);
+ btrfs_release_path(path);
}
+ ret = 0;
out:
btrfs_free_path(path);
- return 0;
+ return ret;
}
int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
@@ -722,7 +729,7 @@ again:
* at this point, we know the tree has an item, but it isn't big
* enough yet to put our csum in. Grow it
*/
- btrfs_release_path(root, path);
+ btrfs_release_path(path);
ret = btrfs_search_slot(trans, root, &file_key, path,
csum_size, 1);
if (ret < 0)
@@ -761,12 +768,11 @@ again:
goto insert;
ret = btrfs_extend_item(trans, root, path, diff);
- BUG_ON(ret);
goto csum;
}
insert:
- btrfs_release_path(root, path);
+ btrfs_release_path(path);
csum_offset = 0;
if (found_next) {
u64 tmp = total_bytes + root->sectorsize;
@@ -850,7 +856,7 @@ next_sector:
}
btrfs_mark_buffer_dirty(path->nodes[0]);
if (total_bytes < sums->len) {
- btrfs_release_path(root, path);
+ btrfs_release_path(path);
cond_resched();
goto again;
}