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| author | Damien Le Moal | 2019-07-01 07:09:18 +0200 |
|---|---|---|
| committer | Jens Axboe | 2019-07-12 04:04:40 +0200 |
| commit | 26202928fafad8bda8b478edb7e62c885be623d7 (patch) | |
| tree | 9935d814339a8951e0e709380dc9aad55751387a /drivers/block | |
| parent | sd_zbc: Fix report zones buffer allocation (diff) | |
| download | kernel-qcow2-linux-26202928fafad8bda8b478edb7e62c885be623d7.tar.gz kernel-qcow2-linux-26202928fafad8bda8b478edb7e62c885be623d7.tar.xz kernel-qcow2-linux-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: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
0 files changed, 0 insertions, 0 deletions