From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:51084 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728415AbfGKOAT (ORCPT ); Thu, 11 Jul 2019 10:00:19 -0400 From: Jan Kara Subject: [PATCH 2/3] fs: Export generic_fadvise() Date: Thu, 11 Jul 2019 16:00:11 +0200 Message-Id: <20190711140012.1671-3-jack@suse.cz> In-Reply-To: <20190711140012.1671-1-jack@suse.cz> References: <20190711140012.1671-1-jack@suse.cz> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: linux-fsdevel@vger.kernel.org Cc: linux-mm@kvack.org, linux-xfs@vger.kernel.org, Amir Goldstein , Boaz Harrosh , Jan Kara , stable@vger.kernel.org Filesystems will need to call this function from their fadvise handlers. CC: stable@vger.kernel.org # Needed by "xfs: Fix stale data exposure when readahead races with hole punch" Signed-off-by: Jan Kara --- include/linux/fs.h | 2 ++ mm/fadvise.c | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index f7fdfe93e25d..2666862ff00d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3536,6 +3536,8 @@ extern void inode_nohighmem(struct inode *inode); /* mm/fadvise.c */ extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len, int advice); +extern int generic_fadvise(struct file *file, loff_t offset, loff_t len, + int advice); #if defined(CONFIG_IO_URING) extern struct sock *io_uring_get_socket(struct file *file); diff --git a/mm/fadvise.c b/mm/fadvise.c index 467bcd032037..4f17c83db575 100644 --- a/mm/fadvise.c +++ b/mm/fadvise.c @@ -27,8 +27,7 @@ * deactivate the pages and clear PG_Referenced. */ -static int generic_fadvise(struct file *file, loff_t offset, loff_t len, - int advice) +int generic_fadvise(struct file *file, loff_t offset, loff_t len, int advice) { struct inode *inode; struct address_space *mapping; @@ -178,6 +177,7 @@ static int generic_fadvise(struct file *file, loff_t offset, loff_t len, } return 0; } +EXPORT_SYMBOL(generic_fadvise); int vfs_fadvise(struct file *file, loff_t offset, loff_t len, int advice) { -- 2.16.4