diff options
| -rw-r--r-- | fs/btrfs/btrfs_inode.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/ctree.h | 3 | ||||
| -rw-r--r-- | fs/btrfs/extent_io.c | 13 | ||||
| -rw-r--r-- | fs/btrfs/file-item.c | 14 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 38 |
5 files changed, 35 insertions, 34 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index fd87941..8bea70e 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -263,7 +263,6 @@ struct btrfs_dio_private { /* dio_bio came from fs/direct-io.c */ struct bio *dio_bio; - u8 csum[0]; }; /* diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 6db3d4b..0f3e4f7 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3719,8 +3719,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, struct bio *bio, u32 *dst); int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode, - struct btrfs_dio_private *dip, struct bio *bio, - u64 logical_offset); + struct bio *bio, u64 logical_offset); int btrfs_insert_file_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 objectid, u64 pos, diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index d5e71d4..d2f8f39 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2621,9 +2621,18 @@ btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs, struct bio *btrfs_bio_clone(struct bio *bio, gfp_t gfp_mask) { - return bio_clone_bioset(bio, gfp_mask, btrfs_bioset); -} + struct btrfs_io_bio *btrfs_bio; + struct bio *new; + new = bio_clone_bioset(bio, gfp_mask, btrfs_bioset); + if (new) { + btrfs_bio = btrfs_io_bio(new); + btrfs_bio->csum = NULL; + btrfs_bio->csum_allocated = NULL; + btrfs_bio->end_io = NULL; + } + return new; +} /* this also allocates from the btrfs_bioset */ struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs) diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 6e6262e..783a943 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -299,19 +299,9 @@ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, } int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode, - struct btrfs_dio_private *dip, struct bio *bio, - u64 offset) + struct bio *bio, u64 offset) { - int len = (bio->bi_iter.bi_sector << 9) - dip->disk_bytenr; - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); - int ret; - - len >>= inode->i_sb->s_blocksize_bits; - len *= csum_size; - - ret = __btrfs_lookup_bio_sums(root, inode, bio, offset, - (u32 *)(dip->csum + len), 1); - return ret; + return __btrfs_lookup_bio_sums(root, inode, bio, offset, NULL, 1); } int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 75c6de2..fca9442 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7240,7 +7240,8 @@ static void btrfs_endio_direct_read(struct bio *bio, int err) struct inode *inode = dip->inode; struct btrfs_root *root = BTRFS_I(inode)->root; struct bio *dio_bio; - u32 *csums = (u32 *)dip->csum; + struct btrfs_io_bio *io_bio = btrfs_io_bio(bio); + u32 *csums = (u32 *)io_bio->csum; u64 start; int i; @@ -7282,6 +7283,9 @@ static void btrfs_endio_direct_read(struct bio *bio, int err) if (err) clear_bit(BIO_UPTODATE, &dio_bio->bi_flags); dio_end_io(dio_bio, err); + + if (io_bio->end_io) + io_bio->end_io(io_bio, err); bio_put(bio); } @@ -7421,13 +7425,20 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode, ret = btrfs_csum_one_bio(root, inode, bio, file_offset, 1); if (ret) goto err; - } else if (!skip_sum) { - ret = btrfs_lookup_bio_sums_dio(root, inode, dip, bio, + } else { + /* + * We have loaded all the csum data we need when we submit + * the first bio, so skip it. + */ + if (dip->logical_offset != file_offset) + goto map; + + /* Load all csum data at once. */ + ret = btrfs_lookup_bio_sums_dio(root, inode, dip->orig_bio, file_offset); if (ret) goto err; } - map: ret = btrfs_map_bio(root, rw, bio, 0, async_submit); err: @@ -7448,7 +7459,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip, u64 submit_len = 0; u64 map_length; int nr_pages = 0; - int ret = 0; + int ret; int async_submit = 0; map_length = orig_bio->bi_iter.bi_size; @@ -7552,11 +7563,10 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio, struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_dio_private *dip; struct bio *io_bio; + struct btrfs_io_bio *btrfs_bio; int skip_sum; - int sum_len; int write = rw & REQ_WRITE; int ret = 0; - u16 csum_size; skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM; @@ -7566,16 +7576,7 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio, goto free_ordered; } - if (!skip_sum && !write) { - csum_size = btrfs_super_csum_size(root->fs_info->super_copy); - sum_len = dio_bio->bi_iter.bi_size >> - inode->i_sb->s_blocksize_bits; - sum_len *= csum_size; - } else { - sum_len = 0; - } - - dip = kmalloc(sizeof(*dip) + sum_len, GFP_NOFS); + dip = kmalloc(sizeof(*dip), GFP_NOFS); if (!dip) { ret = -ENOMEM; goto free_io_bio; @@ -7601,6 +7602,9 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio, if (!ret) return; + btrfs_bio = btrfs_io_bio(io_bio); + if (btrfs_bio->end_io) + btrfs_bio->end_io(btrfs_bio, ret); free_io_bio: bio_put(io_bio); |
