fs: Export generic_fadvise()

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>

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 997a530ff4e9d038d1e705c582833f8f6817a436..bc1b40fb0db73c7425baf080d39e006f1cd2d908 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3531,6 +3531,8 @@ 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 467bcd032037a905e991cefe9fe48922f2031036..4f17c83db5758d03bc06e05e38a60357ad593434 100644 (file)
--- 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)
 {