Revision 6bedf00e55e5dd0a4ed1ad3f06131edd6fb56ec8 authored by Ming Lei on 17 April 2019, 01:11:26 UTC, committed by Jens Axboe on 19 April 2019, 17:32:14 UTC
bvec->bv_offset may be bigger than PAGE_SIZE sometimes, such as, when one bio is splitted in the middle of one bvec via bio_split(), and bi_iter.bi_bvec_done is used to build offset of the 1st bvec of remained bio. And the remained bio's bvec may be re-submitted to fs layer via ITER_IBVEC, such as loop and nvme-loop. So we have to make sure that every bvec's offset is less than PAGE_SIZE from bio_for_each_segment_all() because some drivers(loop, nvme-loop) passes the splitted bvec to fs layer via ITER_BVEC. This patch fixes this issue reported by Zhang Yi When running nvme/011. Cc: Christoph Hellwig <hch@lst.de> Cc: Yi Zhang <yi.zhang@redhat.com> Reported-by: Yi Zhang <yi.zhang@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Fixes: 6dc4f100c175 ("block: allow bio_for_each_segment_all() to iterate over multi-page bvec") Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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File | Mode | Size |
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.gitignore | -rw-r--r-- | 44 bytes |
Kconfig | -rw-r--r-- | 3.4 KB |
Makefile | -rw-r--r-- | 4.1 KB |
blacklist.c | -rw-r--r-- | 4.0 KB |
blacklist.h | -rw-r--r-- | 84 bytes |
blacklist_hashes.c | -rw-r--r-- | 166 bytes |
blacklist_nohashes.c | -rw-r--r-- | 122 bytes |
system_certificates.S | -rw-r--r-- | 828 bytes |
system_keyring.c | -rw-r--r-- | 8.0 KB |
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