From c6fd3ac0fc859da57404c3bad64696d48a6f425e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 5 Nov 2021 13:36:52 -0700 Subject: mm: export bdi_unregister Patch series "simplify bdi unregistation". This series simplifies the BDI code to get rid of the magic auto-unregister feature that hid a recent block layer refcounting bug. This patch (of 5): To wind down the magic auto-unregister semantics we'll need to push this into modular code. Link: https://lkml.kernel.org/r/20211021124441.668816-1-hch@lst.de Link: https://lkml.kernel.org/r/20211021124441.668816-2-hch@lst.de Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Cc: Miquel Raynal Cc: Richard Weinberger Cc: Vignesh Raghavendra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/backing-dev.c | 1 + 1 file changed, 1 insertion(+) (limited to 'mm') diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 4a9d4e27d0d9..8a46a0a4b72f 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -958,6 +958,7 @@ void bdi_unregister(struct backing_dev_info *bdi) bdi->owner = NULL; } } +EXPORT_SYMBOL(bdi_unregister); static void release_bdi(struct kref *ref) { -- cgit v1.2.3-59-g8ed1b