/* * 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 *bio); 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); enum btrfs_compression_type { BTRFS_COMPRESS_NONE = 0, BTRFS_COMPRESS_ZLIB = 1, BTRFS_COMPRESS_LZO = 2, BTRFS_COMPRESS_TYPES = 2, BTRFS_COMPRESS_LAST = 3, }; 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_bio)(struct list_head *workspace, struct page **pages_in, u64 disk_start, struct bio *orig_bio, 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 const struct btrfs_compress_op btrfs_zlib_compress; extern const struct btrfs_compress_op btrfs_lzo_compress; #endif 623b737070038af94d0b8a3c7'>testing

Age	Commit message (Expand)	Author	Files	Lines
2017-02-10	bpf: Use bpf_map_delete_elem() from the library	Mickaël Salaün	3	-24/+14
2017-02-10	bpf: Use bpf_map_lookup_elem() from the library	Mickaël Salaün	4	-48/+37
2017-02-10	bpf: Use bpf_map_update_elem() from the library	Mickaël Salaün	4	-89/+97
2017-02-10	bpf: Use bpf_load_program() from the library	Mickaël Salaün	4	-27/+12
2017-02-10	bpf: Always test unprivileged programs	Mickaël Salaün	2	-6/+64
2017-02-10	bpf: Change the include directory for selftest	Mickaël Salaün	1	-1/+1
2017-02-06	bpf: enable verifier to add 0 to packet ptr	William Tu	1	-0/+23
2017-02-06	bpf: test for AND edge cases	Josef Bacik	1	-0/+55