2019-08-07 01:36:40

by John Hubbard

[permalink] [raw]
Subject: [PATCH v3 35/41] kernel/events/core.c: convert put_page() to put_user_page*()

From: John Hubbard <[email protected]>

For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page() or
release_pages().

This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
("mm: introduce put_user_page*(), placeholder versions").

Cc: Peter Zijlstra <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Signed-off-by: John Hubbard <[email protected]>
---
kernel/events/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 0463c1151bae..7be52bbbfe87 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6426,7 +6426,7 @@ static u64 perf_virt_to_phys(u64 virt)
phys_addr = page_to_phys(p) + virt % PAGE_SIZE;

if (p)
- put_page(p);
+ put_user_page(p);
}

return phys_addr;
--
2.22.0