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| author | Jeff Mahoney <jeffm@suse.com> | 2017-06-29 06:56:55 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-08-16 15:19:53 +0300 |
| commit | 73980becaebfd4dd3c56f2ae64d4081af2a65b27 (patch) | |
| tree | d0ca708fe7fe2f79d34733f5e3fcea233db88865 /fs/btrfs/backref.c | |
| parent | 9a35b63728ceb8602c111260044451dd64952500 (diff) | |
| download | linux-73980becaebfd4dd3c56f2ae64d4081af2a65b27.tar.xz | |
btrfs: backref, constify some arguments
This constifies a few buffers used in the backref code.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/backref.c')
| -rw-r--r-- | fs/btrfs/backref.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index f723c11bb763..9d6474ddf674 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -299,10 +299,11 @@ static int ref_tree_add(struct ref_root *ref_tree, u64 root_id, u64 object_id, return 0; } -static int check_extent_in_eb(struct btrfs_key *key, struct extent_buffer *eb, - struct btrfs_file_extent_item *fi, - u64 extent_item_pos, - struct extent_inode_elem **eie) +static int check_extent_in_eb(const struct btrfs_key *key, + const struct extent_buffer *eb, + const struct btrfs_file_extent_item *fi, + u64 extent_item_pos, + struct extent_inode_elem **eie) { u64 offset = 0; struct extent_inode_elem *e; @@ -344,9 +345,9 @@ static void free_inode_elem_list(struct extent_inode_elem *eie) } } -static int find_extent_in_eb(struct extent_buffer *eb, u64 wanted_disk_byte, - u64 extent_item_pos, - struct extent_inode_elem **eie) +static int find_extent_in_eb(const struct extent_buffer *eb, + u64 wanted_disk_byte, u64 extent_item_pos, + struct extent_inode_elem **eie) { u64 disk_byte; struct btrfs_key key; @@ -456,7 +457,7 @@ void btrfs_prelim_ref_exit(void) */ static int __add_prelim_ref(struct list_head *head, u64 root_id, - struct btrfs_key *key, int level, + const struct btrfs_key *key, int level, u64 parent, u64 wanted_disk_byte, int count, gfp_t gfp_mask) { @@ -1649,7 +1650,7 @@ int btrfs_find_one_extref(struct btrfs_root *root, u64 inode_objectid, struct btrfs_key key; struct btrfs_key found_key; struct btrfs_inode_extref *extref; - struct extent_buffer *leaf; + const struct extent_buffer *leaf; unsigned long ptr; key.objectid = inode_objectid; @@ -1806,7 +1807,7 @@ int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical, u64 flags; u64 size = 0; u32 item_size; - struct extent_buffer *eb; + const struct extent_buffer *eb; struct btrfs_extent_item *ei; struct btrfs_key key; @@ -1874,9 +1875,11 @@ int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical, * next ref. after the last ref was processed, 1 is returned. * returns <0 on error */ -static int __get_extent_inline_ref(unsigned long *ptr, struct extent_buffer *eb, - struct btrfs_key *key, - struct btrfs_extent_item *ei, u32 item_size, +static int __get_extent_inline_ref(unsigned long *ptr, + const struct extent_buffer *eb, + const struct btrfs_key *key, + const struct btrfs_extent_item *ei, + u32 item_size, struct btrfs_extent_inline_ref **out_eiref, int *out_type) { |