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authorMikulas Patocka <mpatocka@redhat.com>2018-03-26 20:29:47 +0200
committerMike Snitzer <snitzer@redhat.com>2018-04-03 15:04:29 -0400
commit45354f1eb67224669a1de94dbfcb8bb226be1f74 (patch)
tree9b91b8be6fcf300e5f22ccaec4f506c6e0ee6725 /Documentation
parentf51f2e0a7fb17af57634c65687c985c9b3449263 (diff)
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dm bufio: don't embed a bio in the dm_buffer structure
The bio structure consumes a substantial part of dm_buffer. The bio structure is only needed when doing I/O on the buffer, thus we don't have to embed it in the buffer. Allocate the bio structure only when doing I/O. We don't need to create a bio_set because, in case of allocation failure, dm-bufio falls back to using dm-io (which keeps its own bio_set). Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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