Subject: [PATCH RFC PKS/PMEM 22/58] fs/f2fs: Utilize new kmap_thread()

From: [email-masked]
Date: Fri, 9 Oct 2020 12:49:57 -0700

From: Ira Weiny <[email-masked]>

The kmap() calls in this FS are localized to a single thread.  To avoid
the over head of global PKRS updates use the new kmap_thread() call.

Cc: Jaegeuk Kim <[email-masked]>
Cc: Chao Yu <[email-masked]>
Signed-off-by: Ira Weiny <[email-masked]>
---
 fs/f2fs/f2fs.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d9e52a7f3702..ff72a45a577e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2410,12 +2410,12 @@ static inline struct page *f2fs_pagecache_get_page(
 
 static inline void f2fs_copy_page(struct page *src, struct page *dst)
 {
-	char *src_kaddr = kmap(src);
-	char *dst_kaddr = kmap(dst);
+	char *src_kaddr = kmap_thread(src);
+	char *dst_kaddr = kmap_thread(dst);
 
 	memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
-	kunmap(dst);
-	kunmap(src);
+	kunmap_thread(dst);
+	kunmap_thread(src);
 }
 
 static inline void f2fs_put_page(struct page *page, int unlock)
-- 
2.28.0.rc0.12.gb6a658bd00c9