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| author |   Christoph Hellwig <hch@lst.de> | 2021-11-05 13:36:52 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-06 13:30:34 -0700 |
| commit | c6fd3ac0fc859da57404c3bad64696d48a6f425e (patch) | |
| tree | 3f90236db3e208e9f06be9e0738517f0428477cd /mm/backing-dev.c | |
| parent | mm: stop filemap_read() from grabbing a superfluous page (diff) | |
| download | linux-dev-c6fd3ac0fc859da57404c3bad64696d48a6f425e.tar.xz linux-dev-c6fd3ac0fc859da57404c3bad64696d48a6f425e.zip | |
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 <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/backing-dev.c')
| -rw-r--r-- | mm/backing-dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
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) { |