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Subject[PATCH 0/2] blktrace: fix trace buffer leak and limit trace buffer size
Date
blktrace may pass big trace buffer size via '-b', meantime the system
may have lots of CPU cores, so too much memory can be allocated for
blktrace.

The 1st patch shutdown bltrace in blkdev_close() in case of task
exiting, for avoiding trace buffer leak.

The 2nd patch limits max trace buffer size for avoiding potential
OOM.


Ming Lei (2):
block: shutdown blktrace in case of fatal signal pending
blktrace: limit allowed total trace buffer size

fs/block_dev.c | 6 ++++++
kernel/trace/blktrace.c | 32 ++++++++++++++++++++++++++++++++
2 files changed, 38 insertions(+)

--
2.29.2

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