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btrfs: btrfs_decompress_bio() could accept compressed_bio instead 

Instead of sending each argument of struct compressed_bio, send
the compressed_bio itself.

Also by having struct compressed_bio in btrfs_decompress_bio()
it would help tracing.

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 15:44:58 +08:00 committed by David Sterba
parent d2006e6d28
commit 8140dc30a4
1 changed files with 9 additions and 14 deletions
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23
fs/btrfs/compression.c
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@ -81,9 +81,7 @@ struct compressed_bio {
u32 sums; u32 sums;
}; };
static int btrfs_decompress_bio(int type, struct page **pages_in, static int btrfs_decompress_bio(struct compressed_bio *cb);
u64 disk_start, struct bio *orig_bio,
size_t srclen);
static inline int compressed_bio_size(struct btrfs_fs_info *fs_info, static inline int compressed_bio_size(struct btrfs_fs_info *fs_info,
unsigned long disk_size) unsigned long disk_size)
@ -173,11 +171,8 @@ static void end_compressed_bio_read(struct bio *bio)
/* ok, we're the last bio for this extent, lets start /* ok, we're the last bio for this extent, lets start
* the decompression. * the decompression.
*/ */
ret = btrfs_decompress_bio(cb->compress_type, ret = btrfs_decompress_bio(cb);
cb->compressed_pages,
cb->start,
cb->orig_bio,
cb->compressed_len);
csum_failed: csum_failed:
if (ret) if (ret)
cb->errors = 1; cb->errors = 1;
@ -961,18 +956,18 @@ int btrfs_compress_pages(int type, struct address_space *mapping,
* be contiguous. They all correspond to the range of bytes covered by * be contiguous. They all correspond to the range of bytes covered by
* the compressed extent. * the compressed extent.
*/ */
static int btrfs_decompress_bio(int type, struct page **pages_in, static int btrfs_decompress_bio(struct compressed_bio *cb)
u64 disk_start, struct bio *orig_bio,
size_t srclen)
{ {
struct list_head *workspace; struct list_head *workspace;
int ret; int ret;
int type = cb->compress_type;
workspace = find_workspace(type); workspace = find_workspace(type);
ret = btrfs_compress_op[type-1]->decompress_bio(workspace, pages_in, ret = btrfs_compress_op[type - 1]->decompress_bio(workspace,
disk_start, orig_bio, cb->compressed_pages, cb->start, cb->orig_bio,
srclen); cb->compressed_len);
free_workspace(type, workspace); free_workspace(type, workspace);
return ret; return ret;
} }