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| author | Damien Le Moal <[email protected]> | 2019-07-01 05:09:18 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2019-07-12 02:04:40 +0000 |
| commit | 26202928fafad8bda8b478edb7e62c885be623d7 (patch) | |
| tree | 9935d814339a8951e0e709380dc9aad55751387a /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | sd_zbc: Fix report zones buffer allocation (diff) | |
| download | kernel-26202928fafad8bda8b478edb7e62c885be623d7.tar.gz kernel-26202928fafad8bda8b478edb7e62c885be623d7.zip | |
block: Limit zone array allocation size
Limit the size of the struct blk_zone array used in
blk_revalidate_disk_zones() to avoid memory allocation failures leading
to disk revalidation failure. Also further reduce the likelyhood of
such failures by using kvcalloc() (that is vmalloc()) instead of
allocating contiguous pages with alloc_pages().
Fixes: 515ce6061312 ("scsi: sd_zbc: Fix sd_zbc_report_zones() buffer allocation")
Fixes: e76239a3748c ("block: add a report_zones method")
Cc: [email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Signed-off-by: Damien Le Moal <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions