Here, the page has been identified as lowmem already. So, calling lowmem_page_address() directly is a little cheaper than page_address(). Signed-off-by: Heesub Shin <heesub.shin@xxxxxxxxxxx> Cc: Dongjun Shin <d.j.shin@xxxxxxxxxxx> --- fs/buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/buffer.c b/fs/buffer.c index 695eb14..ccc2c7b 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1464,7 +1464,7 @@ void set_bh_page(struct buffer_head *bh, */ bh->b_data = (char *)(0 + offset); else - bh->b_data = page_address(page) + offset; + bh->b_data = lowmem_page_address(page) + offset; } EXPORT_SYMBOL(set_bh_page); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
