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authorChristoph Hellwig <hch@lst.de>2016-11-25 09:07:46 +0100
committerDavid Sterba <dsterba@suse.com>2016-11-30 13:45:19 +0100
commit974b1adc3b103fae1dbc1fe6a8aceeca2878f20e (patch)
tree0b0aa4829383f26f184e6dc631ab36ae40a93554 /fs/btrfs/compression.h
parentbtrfs: Ensure proper sector alignment for btrfs_free_reserved_data_space (diff)
downloadlinux-974b1adc3b103fae1dbc1fe6a8aceeca2878f20e.tar.xz
linux-974b1adc3b103fae1dbc1fe6a8aceeca2878f20e.zip
btrfs: use bio iterators for the decompression handlers
Pass the full bio to the decompression routines and use bio iterators to iterate over the data in the bio. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/compression.h')
-rw-r--r--fs/btrfs/compression.h12
1 files changed, 3 insertions, 9 deletions
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h
index f49d8b8c0f00..09879579fbc8 100644
--- a/fs/btrfs/compression.h
+++ b/fs/btrfs/compression.h
@@ -34,9 +34,7 @@ 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);
+ struct bio *bio);
int btrfs_submit_compressed_write(struct inode *inode, u64 start,
unsigned long len, u64 disk_start,
@@ -45,9 +43,6 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
unsigned long nr_pages);
int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags);
-void btrfs_clear_biovec_end(struct bio_vec *bvec, int vcnt,
- unsigned long pg_index,
- unsigned long pg_offset);
enum btrfs_compression_type {
BTRFS_COMPRESS_NONE = 0,
@@ -72,11 +67,10 @@ struct btrfs_compress_op {
unsigned long *total_out,
unsigned long max_out);
- int (*decompress_biovec)(struct list_head *workspace,
+ int (*decompress_bio)(struct list_head *workspace,
struct page **pages_in,
u64 disk_start,
- struct bio_vec *bvec,
- int vcnt,
+ struct bio *orig_bio,
size_t srclen);
int (*decompress)(struct list_head *workspace,