linux/tools/testing/selftests/vm/map_populate.c, branch v5.3Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v5.32018-08-22T17:52:45Ztools/testing/selftests/vm/: add MAP_POPULATE test2018-08-22T17:52:45ZDmitry Safonovdima@arista.com2018-08-22T04:53:47Zurn:sha1:1caed86022b9eb927283d8b2cdd7216baf43029e
As with many other projects, we use some shmalloc allocator. At some
point we need to make a part of allocated pages back private to process.
And it should be populated straight away. Check that (MAP_PRIVATE |
MAP_POPULATE) actually copies the private page.
[akpm@linux-foundation.org: change message, per review discussion]
Link: http://lkml.kernel.org/r/20180801233636.29354-1-dima@arista.com
Signed-off-by: Dmitry Safonov <dima@arista.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Hua Zhong <hzhong@arista.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Stuart Ritchie <sritchie@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>