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mm, gup: return EINTR when gup is interrupted by fatal signals

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EINTR is the usual error code which other killable interfaces return.
This is the case for the other fatal_signal_pending break out from the
same function.  Make the code consistent.

ERESTARTSYS is also quite confusing because the signal is fatal and so
no restart will happen before returning to the userspace.

Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Hillf Danton <hdanton@sina.com>
Link: http://lkml.kernel.org/r/20200409071133.31734-1-mhocko@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michal Hocko 2020-04-20 18:13:55 -07:00 committed by Linus Torvalds
parent 3c1d7e6ccb
commit d180870d83
1 changed files with 1 additions and 1 deletions
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2
mm/gup.c
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@ -1088,7 +1088,7 @@ retry:
* potentially allocating memory.
*/
if (fatal_signal_pending(current)) {
ret = -ERESTARTSYS;
ret = -EINTR;
goto out;
}
cond_resched();