[Xen-devel] [PATCH v2 34/34] fs/binfmt_elf: convert put_page() to put_user_page*()

[john.hubbard@xxxxxxxxx]

From: Ira Weiny <ira.weiny@xxxxxxxxx>

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 <ira.weiny@xxxxxxxxx>
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
 fs/binfmt_elf.c       | 2 +-
 fs/binfmt_elf_fdpic.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

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);
                        }
-- 
2.22.0


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