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authorMichel Lespinasse <walken@google.com>2020-06-09 07:33:51 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-09 19:39:14 +0300
commit3e4e28c5a8f01ee4174d639e36ed155ade489a6f (patch)
tree5d440153b87f0416897f4f1a986248370354f986 /mm/oom_kill.c
parentda1c55f1b272f4bd54671d459b39ea7b54944ef9 (diff)
downloadlinux-3e4e28c5a8f01ee4174d639e36ed155ade489a6f.tar.xz
mmap locking API: convert mmap_sem API comments
Convert comments that reference old mmap_sem APIs to reference corresponding new mmap locking APIs instead. Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Davidlohr Bueso <dbueso@suse.de> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Liam Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ying Han <yinghan@google.com> Link: http://lkml.kernel.org/r/20200520052908.204642-12-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index af3de7a92a9f..3b5d78dfebe9 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -577,8 +577,8 @@ static bool oom_reap_task_mm(struct task_struct *tsk, struct mm_struct *mm)
/*
* MMF_OOM_SKIP is set by exit_mmap when the OOM reaper can't
* work on the mm anymore. The check for MMF_OOM_SKIP must run
- * under mmap_sem for reading because it serializes against the
- * down_write();up_write() cycle in exit_mmap().
+ * under mmap_lock for reading because it serializes against the
+ * mmap_write_lock();mmap_write_unlock() cycle in exit_mmap().
*/
if (test_bit(MMF_OOM_SKIP, &mm->flags)) {
trace_skip_task_reaping(tsk->pid);
@@ -611,7 +611,7 @@ static void oom_reap_task(struct task_struct *tsk)
int attempts = 0;
struct mm_struct *mm = tsk->signal->oom_mm;
- /* Retry the down_read_trylock(mmap_sem) a few times */
+ /* Retry the mmap_read_trylock(mm) a few times */
while (attempts++ < MAX_OOM_REAP_RETRIES && !oom_reap_task_mm(tsk, mm))
schedule_timeout_idle(HZ/10);
@@ -629,7 +629,7 @@ done:
/*
* Hide this mm from OOM killer because it has been either reaped or
- * somebody can't call up_write(mmap_sem).
+ * somebody can't call mmap_write_unlock(mm).
*/
set_bit(MMF_OOM_SKIP, &mm->flags);