diff options
| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2016-10-07 16:58:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-07 18:46:27 -0700 |
| commit | c4b209a426847b55c40360c1d04dc7986b55ddc7 (patch) | |
| tree | 4b314ec370fa682299fce807a74ce00f22cdc8bf /kernel/test_kprobes.c | |
| parent | 9300d8dfd282bd1473395c5c4c76bfdc90b05978 (diff) | |
do_generic_file_read(): fail immediately if killed
If a fatal signal has been received, fail immediately instead of trying
to read more data.
If wait_on_page_locked_killable() was interrupted then this page is most
likely is not PageUptodate() and in this case do_generic_file_read()
will fail after lock_page_killable().
See also commit ebded02788b5 ("mm: filemap: avoid unnecessary calls to
lock_page when waiting for IO to complete during a read")
[oleg@redhat.com: changelog addition]
Link: http://lkml.kernel.org/r/63068e8e-8bee-b208-8441-a3c39a9d9eb6@sandisk.com
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/test_kprobes.c')
0 files changed, 0 insertions, 0 deletions