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| author | Oleg Nesterov <oleg@tv-sign.ru> | 2007-10-16 23:27:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:42:53 -0700 |
| commit | b2c903b8790467ae400f6992ac01bc8913b49e19 (patch) | |
| tree | 656e6523b76856742cb38e36acf90ec5641bc7be /fs/autofs4 | |
| parent | 0840a90d943bcde2fbfeabd3c256236eed2273cd (diff) | |
| download | linux-b2c903b8790467ae400f6992ac01bc8913b49e19.tar.gz linux-b2c903b8790467ae400f6992ac01bc8913b49e19.tar.bz2 linux-b2c903b8790467ae400f6992ac01bc8913b49e19.zip | |
exec: simplify the new ->sighand allocation
de_thread() pre-allocates newsighand to make sure that exec() can't fail after
killing all sub-threads. Imho, this buys nothing, but complicates the code:
- this is (mostly) needed to handle CLONE_SIGHAND without CLONE_THREAD
tasks, this is very unlikely (if ever used) case
- unless we already have some serious problems, GFP_KERNEL allocation
should not fail
- ENOMEM still can happen after de_thread(), ->sighand is not the last
object we have to allocate
Change the code to allocate the new ->sighand on demand.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/autofs4')
0 files changed, 0 insertions, 0 deletions