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authorBaolin Wang <baolin.wang@linux.alibaba.com>2021-02-24 12:01:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-24 13:38:27 -0800
commit1f7ef657740344541645349a8bece90cbff898f5 (patch)
treebcca61681e0101aee19fcd73282190de341d2e88
parent1d2cae8ea1cf082df8258fcb5ab35de29821c450 (diff)
mm/filemap: remove unused parameter and change to void type for replace_page_cache_page()
Since commit 74d609585d8b ("page cache: Add and replace pages using the XArray") was merged, the replace_page_cache_page() can not fail and always return 0, we can remove the redundant return value and void it. Moreover remove the unused gfp_mask. Link: https://lkml.kernel.org/r/609c30e5274ba15d8b90c872fd0d8ac437a9b2bb.1610071401.git.baolin.wang@linux.alibaba.com Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/fuse/dev.c6
-rw-r--r--include/linux/pagemap.h2
-rw-r--r--mm/filemap.c7
3 files changed, 3 insertions, 12 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 588f8d1240aa..c6636b4c4ccf 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -844,11 +844,7 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
if (WARN_ON(PageMlocked(oldpage)))
goto out_fallback_unlock;
- err = replace_page_cache_page(oldpage, newpage, GFP_KERNEL);
- if (err) {
- unlock_page(newpage);
- goto out_put_old;
- }
+ replace_page_cache_page(oldpage, newpage);
get_page(newpage);
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index d5570deff400..74e466e5a2ba 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -757,7 +757,7 @@ int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
pgoff_t index, gfp_t gfp_mask);
extern void delete_from_page_cache(struct page *page);
extern void __delete_from_page_cache(struct page *page, void *shadow);
-int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask);
+void replace_page_cache_page(struct page *old, struct page *new);
void delete_from_page_cache_batch(struct address_space *mapping,
struct pagevec *pvec);
diff --git a/mm/filemap.c b/mm/filemap.c
index 6ff2a3fb0dc7..7dfed3454a2e 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -777,7 +777,6 @@ EXPORT_SYMBOL(file_write_and_wait_range);
* replace_page_cache_page - replace a pagecache page with a new one
* @old: page to be replaced
* @new: page to replace with
- * @gfp_mask: allocation mode
*
* This function replaces a page in the pagecache with a new one. On
* success it acquires the pagecache reference for the new page and
@@ -786,10 +785,8 @@ EXPORT_SYMBOL(file_write_and_wait_range);
* caller must do that.
*
* The remove + add is atomic. This function cannot fail.
- *
- * Return: %0
*/
-int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)
+void replace_page_cache_page(struct page *old, struct page *new)
{
struct address_space *mapping = old->mapping;
void (*freepage)(struct page *) = mapping->a_ops->freepage;
@@ -824,8 +821,6 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)
if (freepage)
freepage(old);
put_page(old);
-
- return 0;
}
EXPORT_SYMBOL_GPL(replace_page_cache_page);