[PATCH 0/2] blktrace: fix trace buffer leak and limit trace buffer size

[Ming Lei]

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