mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 22:53:55 +08:00
48a3b6366f
Big patch, but all it does is add statics to functions which are in fact static, then remove the associated dead-code fallout. removed functions: btrfs_iref_to_path() __btrfs_lookup_delayed_deletion_item() __btrfs_search_delayed_insertion_item() __btrfs_search_delayed_deletion_item() find_eb_for_page() btrfs_find_block_group() range_straddles_pages() extent_range_uptodate() btrfs_file_extent_length() btrfs_scrub_cancel_devid() btrfs_start_transaction_lflush() btrfs_print_tree() is left because it is used for debugging. btrfs_start_transaction_lflush() and btrfs_reada_detach() are left for symmetry. ulist.c functions are left, another patch will take care of those. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/*
|
|
* Copyright (C) 2008 Oracle. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License v2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 021110-1307, USA.
|
|
*/
|
|
|
|
#ifndef __BTRFS_COMPRESSION_
|
|
#define __BTRFS_COMPRESSION_
|
|
|
|
void btrfs_init_compress(void);
|
|
void btrfs_exit_compress(void);
|
|
|
|
int btrfs_compress_pages(int type, struct address_space *mapping,
|
|
u64 start, unsigned long len,
|
|
struct page **pages,
|
|
unsigned long nr_dest_pages,
|
|
unsigned long *out_pages,
|
|
unsigned long *total_in,
|
|
unsigned long *total_out,
|
|
unsigned long max_out);
|
|
int btrfs_decompress(int type, unsigned char *data_in, struct page *dest_page,
|
|
unsigned long start_byte, size_t srclen, size_t destlen);
|
|
int btrfs_decompress_buf2page(char *buf, unsigned long buf_start,
|
|
unsigned long total_out, u64 disk_start,
|
|
struct bio_vec *bvec, int vcnt,
|
|
unsigned long *pg_index,
|
|
unsigned long *pg_offset);
|
|
|
|
int btrfs_submit_compressed_write(struct inode *inode, u64 start,
|
|
unsigned long len, u64 disk_start,
|
|
unsigned long compressed_len,
|
|
struct page **compressed_pages,
|
|
unsigned long nr_pages);
|
|
int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
|
|
int mirror_num, unsigned long bio_flags);
|
|
|
|
struct btrfs_compress_op {
|
|
struct list_head *(*alloc_workspace)(void);
|
|
|
|
void (*free_workspace)(struct list_head *workspace);
|
|
|
|
int (*compress_pages)(struct list_head *workspace,
|
|
struct address_space *mapping,
|
|
u64 start, unsigned long len,
|
|
struct page **pages,
|
|
unsigned long nr_dest_pages,
|
|
unsigned long *out_pages,
|
|
unsigned long *total_in,
|
|
unsigned long *total_out,
|
|
unsigned long max_out);
|
|
|
|
int (*decompress_biovec)(struct list_head *workspace,
|
|
struct page **pages_in,
|
|
u64 disk_start,
|
|
struct bio_vec *bvec,
|
|
int vcnt,
|
|
size_t srclen);
|
|
|
|
int (*decompress)(struct list_head *workspace,
|
|
unsigned char *data_in,
|
|
struct page *dest_page,
|
|
unsigned long start_byte,
|
|
size_t srclen, size_t destlen);
|
|
};
|
|
|
|
extern struct btrfs_compress_op btrfs_zlib_compress;
|
|
extern struct btrfs_compress_op btrfs_lzo_compress;
|
|
|
|
#endif
|