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btrfs: reduce arguments for decompress_bio ops

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struct compressed_bio pointer can be used instead.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain
2017-05-26 15:44:59 +08:00
committed by David Sterba
parent 8140dc30a4
commit e1ddce71d6
4 changed files with 54 additions and 57 deletions
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46
fs/btrfs/compression.c
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@@ -42,45 +42,6 @@
#include "extent_io.h"
#include "extent_map.h"
struct compressed_bio {
/* number of bios pending for this compressed extent */
refcount_t pending_bios;
/* the pages with the compressed data on them */
struct page **compressed_pages;
/* inode that owns this data */
struct inode *inode;
/* starting offset in the inode for our pages */
u64 start;
/* number of bytes in the inode we're working on */
unsigned long len;
/* number of bytes on disk */
unsigned long compressed_len;
/* the compression algorithm for this bio */
int compress_type;
/* number of compressed pages in the array */
unsigned long nr_pages;
/* IO errors */
int errors;
int mirror_num;
/* for reads, this is the bio we are copying the data into */
struct bio *orig_bio;
/*
* the start of a variable length array of checksums only
* used by reads
*/
u32 sums;
};
static int btrfs_decompress_bio(struct compressed_bio *cb);
static inline int compressed_bio_size(struct btrfs_fs_info *fs_info,
@@ -963,12 +924,9 @@ static int btrfs_decompress_bio(struct compressed_bio *cb)
int type = cb->compress_type;
workspace = find_workspace(type);
ret = btrfs_compress_op[type - 1]->decompress_bio(workspace,
cb->compressed_pages, cb->start, cb->orig_bio,
cb->compressed_len);
ret = btrfs_compress_op[type - 1]->decompress_bio(workspace, cb);
free_workspace(type, workspace);
return ret;
}