diff options
| author |   Christoph Hellwig <hch@lst.de> | 2022-05-26 09:36:42 +0200 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-07-25 17:45:33 +0200 |
| commit | 9ff7ddd3c7ad7f6537cd66d3f455c7717bd358b9 (patch) | |
| tree | 2ec805674d832a7784c9440c800c088ef0b21107 /fs/btrfs/extent_io.h | |
| parent | btrfs: factor stripe submission logic out of btrfs_map_bio (diff) | |
| download | linux-dev-9ff7ddd3c7ad7f6537cd66d3f455c7717bd358b9.tar.xz linux-dev-9ff7ddd3c7ad7f6537cd66d3f455c7717bd358b9.zip | |
btrfs: do not allocate a btrfs_bio for low-level bios
The bios submitted from btrfs_map_bio don't really interact with the
rest of btrfs and the only btrfs_bio member actually used in the
low-level bios is the pointer to the btrfs_io_context used for endio
handler.
Use a union in struct btrfs_io_stripe that allows the endio handler to
find the btrfs_io_context and remove the spurious ->device assignment
so that a plain fs_bio_set bio can be used for the low-level bios
allocated inside btrfs_map_bio.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 23d4103c8831..72966cf21961 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -247,7 +247,6 @@ void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end, int btrfs_alloc_page_array(unsigned int nr_pages, struct page **page_array); struct bio *btrfs_bio_alloc(unsigned int nr_iovecs); -struct bio *btrfs_bio_clone(struct block_device *bdev, struct bio *bio); struct bio *btrfs_bio_clone_partial(struct bio *orig, u64 offset, u64 size); void end_extent_writepage(struct page *page, int err, u64 start, u64 end); |