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| author | Oleg Nesterov <oleg@redhat.com> | 2010-05-26 23:43:14 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-27 18:12:46 +0200 |
| commit | ffdf91856c812646aa276711fa7e3ad80b00764a (patch) | |
| tree | 0a6d0e6e1edb78aee411c3fb302c43acf34dc7d6 /kernel | |
| parent | posix-cpu-timers: avoid "task->signal != NULL" checks (diff) | |
| download | linux-ffdf91856c812646aa276711fa7e3ad80b00764a.tar.xz linux-ffdf91856c812646aa276711fa7e3ad80b00764a.zip | |
ia64: ptrace_attach_sync_user_rbs: avoid "task->signal != NULL" checks
Preparation to make task->signal immutable, no functional changes.
It doesn't matter which pointer we check under tasklist to ensure the task
was not released, ->signal or ->sighand. But we are going to make
->signal refcountable, change the code to use ->sighand.
Note: this code doesn't need this check and tasklist_lock at all, it
should be converted to use lock_task_sighand(). And, the code under
SIGNAL_STOP_STOPPED check looks wrong.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions