linux-kernel - [PATCHv2 1/2] fs: export put

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Message-Id: <20190820031359.11717-1-sergey.senozhatsky@gmail.com>
Date:   Tue, 20 Aug 2019 12:13:58 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        David Howells <dhowells@...hat.com>,
        Christoph Hellwig <hch@....de>
Cc:     intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [PATCHv2 1/2] fs: export put_filesystem()

Modules, e.g. i915, can use exported get_fs_type(), but are
unable to put_filesystem(). Export it and let modules to
decrement file systems' reference counters.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
---
 fs/filesystems.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/filesystems.c b/fs/filesystems.c
index 9135646e41ac..02669839b584 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -45,6 +45,7 @@ void put_filesystem(struct file_system_type *fs)
 {
 	module_put(fs->owner);
 }
+EXPORT_SYMBOL(put_filesystem);
 
 static struct file_system_type **find_filesystem(const char *name, unsigned len)
 {
-- 
2.23.0