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| author | David Miller <davem@davemloft.net> | 2008-02-15 10:40:52 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:00 -0400 |
| commit | df68b8a7ad4a18c9e63f1c12015a59c3b7031adb (patch) | |
| tree | f2e6569b5f4843a01f23068fdfd3b450c8258459 /fs/btrfs/dir-item.c | |
| parent | 39b5637f6f195852259004bb27b58e2dcf9fb378 (diff) | |
| download | blackbird-op-linux-df68b8a7ad4a18c9e63f1c12015a59c3b7031adb.tar.gz blackbird-op-linux-df68b8a7ad4a18c9e63f1c12015a59c3b7031adb.zip | |
Btrfs: unaligned access fixes
Btrfs set/get macros lose type information needed to avoid
unaligned accesses on sparc64.
ere is a patch for the kernel bits which fixes most of the
unaligned accesses on sparc64.
btrfs_name_hash is modified to return the hash value instead
of getting a return location via a (potentially unaligned)
pointer.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/dir-item.c')
| -rw-r--r-- | fs/btrfs/dir-item.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c index 5247a9a41f08..7a73dc59dc4d 100644 --- a/fs/btrfs/dir-item.c +++ b/fs/btrfs/dir-item.c @@ -71,8 +71,7 @@ int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans, key.objectid = dir; btrfs_set_key_type(&key, BTRFS_XATTR_ITEM_KEY); - ret = btrfs_name_hash(name, name_len, &key.offset); - BUG_ON(ret); + key.offset = btrfs_name_hash(name, name_len); path = btrfs_alloc_path(); if (!path) return -ENOMEM; @@ -125,8 +124,7 @@ int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root key.objectid = dir; btrfs_set_key_type(&key, BTRFS_DIR_ITEM_KEY); - ret = btrfs_name_hash(name, name_len, &key.offset); - BUG_ON(ret); + key.offset = btrfs_name_hash(name, name_len); path = btrfs_alloc_path(); data_size = sizeof(*dir_item) + name_len; dir_item = insert_with_overflow(trans, root, path, &key, data_size, @@ -199,8 +197,7 @@ struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, key.objectid = dir; btrfs_set_key_type(&key, BTRFS_DIR_ITEM_KEY); - ret = btrfs_name_hash(name, name_len, &key.offset); - BUG_ON(ret); + key.offset = btrfs_name_hash(name, name_len); ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow); if (ret < 0) @@ -261,8 +258,7 @@ struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans, key.objectid = dir; btrfs_set_key_type(&key, BTRFS_XATTR_ITEM_KEY); - ret = btrfs_name_hash(name, name_len, &key.offset); - BUG_ON(ret); + key.offset = btrfs_name_hash(name, name_len); ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow); if (ret < 0) return ERR_PTR(ret); |
