diff options
| author | Bart Van Assche <[email protected]> | 2018-05-22 08:27:22 -0700 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2018-05-22 11:58:07 -0600 |
| commit | 327ea4adcfa37194739f1ec7c70568944d292281 (patch) | |
| tree | a3f70b1f6e68f81a124a972543b468ab556d8dba /tools/perf/scripts/python/sched-migration.py | |
| parent | 2189c97cdbed630d5971ab22f05dc998774e354e (diff) | |
blkdev_report_zones_ioctl(): Use vmalloc() to allocate large buffers
Avoid that complaints similar to the following appear in the kernel log
if the number of zones is sufficiently large:
fio: page allocation failure: order:9, mode:0x140c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null)
Call Trace:
dump_stack+0x63/0x88
warn_alloc+0xf5/0x190
__alloc_pages_slowpath+0x8f0/0xb0d
__alloc_pages_nodemask+0x242/0x260
alloc_pages_current+0x6a/0xb0
kmalloc_order+0x18/0x50
kmalloc_order_trace+0x26/0xb0
__kmalloc+0x20e/0x220
blkdev_report_zones_ioctl+0xa5/0x1a0
blkdev_ioctl+0x1ba/0x930
block_ioctl+0x41/0x50
do_vfs_ioctl+0xaa/0x610
SyS_ioctl+0x79/0x90
do_syscall_64+0x79/0x1b0
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Fixes: 3ed05a987e0f ("blk-zoned: implement ioctls")
Signed-off-by: Bart Van Assche <[email protected]>
Cc: Shaun Tancheff <[email protected]>
Cc: Damien Le Moal <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Martin K. Petersen <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions