@@ -14,6 +14,7 @@
#include "dev-replace.h"
#include "rcu-string.h"
#include "zoned.h"
+#include "file-item.h"
static struct bio_set btrfs_bioset;
@@ -254,10 +255,15 @@ void btrfs_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio, int mirror
}
/*
- * Save the iter for the end_io handler for data reads.
+ * Save the iter for the end_io handler and preload the checksums for
+ * data reads.
*/
- if (bio_op(bio) == REQ_OP_READ && !(bio->bi_opf & REQ_META))
+ if (bio_op(bio) == REQ_OP_READ && !(bio->bi_opf & REQ_META)) {
bbio->iter = bio->bi_iter;
+ ret = btrfs_lookup_bio_sums(bbio);
+ if (ret)
+ goto fail;
+ }
if (!bioc) {
/* Single mirror read/write fast path */
@@ -797,12 +797,6 @@ void btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
*/
btrfs_bio(comp_bio)->file_offset = file_offset;
- ret = btrfs_lookup_bio_sums(btrfs_bio(comp_bio));
- if (ret) {
- btrfs_bio_end_io(btrfs_bio(comp_bio), ret);
- break;
- }
-
ASSERT(comp_bio->bi_iter.bi_size);
btrfs_submit_bio(fs_info, comp_bio, mirror_num);
comp_bio = NULL;
@@ -2762,7 +2762,6 @@ void btrfs_submit_data_read_bio(struct btrfs_inode *inode, struct bio *bio,
int mirror_num, enum btrfs_compression_type compress_type)
{
struct btrfs_fs_info *fs_info = inode->root->fs_info;
- blk_status_t ret;
if (compress_type != BTRFS_COMPRESS_NONE) {
/*
@@ -2773,16 +2772,6 @@ void btrfs_submit_data_read_bio(struct btrfs_inode *inode, struct bio *bio,
return;
}
- /*
- * Lookup bio sums does extra checks around whether we need to csum or
- * not, which is why we ignore skip_sum here.
- */
- ret = btrfs_lookup_bio_sums(btrfs_bio(bio));
- if (ret) {
- btrfs_bio_end_io(btrfs_bio(bio), ret);
- return;
- }
-
btrfs_submit_bio(fs_info, bio, mirror_num);
}
@@ -8004,12 +7993,6 @@ static void btrfs_submit_dio_bio(struct bio *bio, struct btrfs_inode *inode,
btrfs_bio_end_io(btrfs_bio(bio), ret);
return;
}
- } else {
- ret = btrfs_lookup_bio_sums(btrfs_bio(bio));
- if (ret) {
- btrfs_bio_end_io(btrfs_bio(bio), ret);
- return;
- }
}
map:
btrfs_submit_bio(fs_info, bio, 0);
@@ -10269,13 +10252,6 @@ static blk_status_t submit_encoded_read_bio(struct btrfs_inode *inode,
{
struct btrfs_encoded_read_private *priv = btrfs_bio(bio)->private;
struct btrfs_fs_info *fs_info = inode->root->fs_info;
- blk_status_t ret;
-
- if (!priv->skip_csum) {
- ret = btrfs_lookup_bio_sums(btrfs_bio(bio));
- if (ret)
- return ret;
- }
atomic_inc(&priv->pending);
btrfs_submit_bio(fs_info, bio, mirror_num);
Instead of calling btrfs_lookup_bio_sums in every caller of btrfs_submit_bio that reads data, do the call once in btrfs_submit_bio. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/btrfs/bio.c | 10 ++++++++-- fs/btrfs/compression.c | 6 ------ fs/btrfs/inode.c | 24 ------------------------ 3 files changed, 8 insertions(+), 32 deletions(-)