diff options
| author | Rajman Mekaco | 2012-05-30 00:06:21 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2012-05-30 01:22:19 +0200 |
| commit | 841e31e5cc6219d62054788faa289b6ed682d068 (patch) | |
| tree | 6c6bbcf2be5082c5bdc71bfccad4d57be0e99126 /mm/huge_memory.c | |
| parent | mm: use kcalloc() instead of kzalloc() to allocate array (diff) | |
| download | kernel-qcow2-linux-841e31e5cc6219d62054788faa289b6ed682d068.tar.gz kernel-qcow2-linux-841e31e5cc6219d62054788faa289b6ed682d068.tar.xz kernel-qcow2-linux-841e31e5cc6219d62054788faa289b6ed682d068.zip | |
mm/mmap.c: find_vma(): remove unnecessary if(mm) check
The "if (mm)" check is not required in find_vma, as the kernel code
calls find_vma only when it is absolutely sure that the mm_struct arg to
it is non-NULL.
Remove the if(mm) check and adding the a WARN_ONCE(!mm) for now. This
will serve the purpose of mandating that the execution
context(user-mode/kernel-mode) be known before find_vma is called. Also
fixed 2 checkpatch.pl errors in the declaration of the rb_node and
vma_tmp local variables.
I was browsing through the internet and read a discussion at
https://lkml.org/lkml/2012/3/27/342 which discusses removal of the
validation check within find_vma. Since no-one responded, I decided to
send this patch with Andrew's suggestions.
[akpm@linux-foundation.org: add remove-me comment]
Signed-off-by: Rajman Mekaco <rajman.mekaco@gmail.com>
Cc: Kautuk Consul <consul.kautuk@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
0 files changed, 0 insertions, 0 deletions