From: Jan Kara <jack@suse.cz>
Date: Thu, 29 Aug 2019 16:04:11 +0000 (-0700)
Subject: fs: Export generic_fadvise()
X-Git-Tag: v5.2.19~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a775ad97ce7720bf94a703008d611a007e4423b7;p=thirdparty%2Fkernel%2Fstable.git

fs: Export generic_fadvise()

commit cf1ea0592dbf109e7e7935b7d5b1a47a1ba04174 upstream.

Filesystems will need to call this function from their fadvise handlers.

CC: stable@vger.kernel.org
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5186ac5b2a294..3b84dd5523a9d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3544,6 +3544,8 @@ 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 467bcd032037a..4f17c83db5758 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)
 {