[v3,36/41] fs/binfmt_elf: convert put_page() to put_user_page*()

Commit Message

[e-mail] Aug. 7, 2019, 1:33 a.m. UTC

From: Ira Weiny <[e-mail]>

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").

get_dump_page calls get_user_page so put_user_page must be used
to match.

Signed-off-by: Ira Weiny <[e-mail]>
Signed-off-by: John Hubbard <[e-mail]>
---
 fs/binfmt_elf.c       | 2 +-
 fs/binfmt_elf_fdpic.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index d4e11b2e04f6..92e4a5ca99d8 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2377,7 +2377,7 @@  static int elf_core_dump(struct coredump_params *cprm)
 				void *kaddr = kmap(page);
 				stop = !dump_emit(cprm, kaddr, PAGE_SIZE);
 				kunmap(page);
-				put_page(page);
+				put_user_page(page);
 			} else
 				stop = !dump_skip(cprm, PAGE_SIZE);
 			if (stop)
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index d86ebd0dcc3d..321724b3be22 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1511,7 +1511,7 @@  static bool elf_fdpic_dump_segments(struct coredump_params *cprm)
 				void *kaddr = kmap(page);
 				res = dump_emit(cprm, kaddr, PAGE_SIZE);
 				kunmap(page);
-				put_page(page);
+				put_user_page(page);
 			} else {
 				res = dump_skip(cprm, PAGE_SIZE);
 			}