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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-08-13 14:26:35 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-08-14 15:40:42 -0600 |
| commit | 168145f617d57bf4e474901b7ffa869337a802e6 (patch) | |
| tree | 74d8fbcb33a1654e81623c5f520e9a26eaa0f161 /scripts/bpf_doc.py | |
| parent | 7ba3792718709d410be5d971732b9251cbda67b6 (diff) | |
block: Allow bio_iov_iter_get_pages() with bio->bi_bdev unset
bio_iov_iter_get_pages() trims the IO based on the block size of the
block device the IO will be issued to.
However, bcachefs is a multi device filesystem; when we're creating the
bio we don't yet know which block device the bio will be submitted to -
we have to handle the alignment checks elsewhere.
Thus this is needed to avoid a null ptr deref.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Link: https://lore.kernel.org/r/20230813182636.2966159-3-kent.overstreet@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'scripts/bpf_doc.py')
0 files changed, 0 insertions, 0 deletions