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| 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 /tools/perf/scripts/python/export-to-sqlite.py | |
| 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 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions