From: Ira Weiny <ira.weiny@xxxxxxxxx> 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. Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx> --- fs/romfs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/romfs/super.c b/fs/romfs/super.c index e582d001f792..9050074c6755 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -107,7 +107,7 @@ static int romfs_readpage(struct file *file, struct page *page) void *buf; int ret; - buf = kmap(page); + buf = kmap_thread(page); if (!buf) return -ENOMEM; @@ -136,7 +136,7 @@ static int romfs_readpage(struct file *file, struct page *page) SetPageUptodate(page); flush_dcache_page(page); - kunmap(page); + kunmap_thread(page); unlock_page(page); return ret; } -- 2.28.0.rc0.12.gb6a658bd00c9
