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authorChristoph Hellwig <hch@lst.de>2015-01-14 12:42:36 +0300
committerJens Axboe <axboe@fb.com>2015-01-21 00:03:04 +0300
commitde1414a654e66b81b5348dbc5259ecf2fb61655e (patch)
tree2b3d60d6c0dc87ba33caff3e326d5648831d6176 /mm/truncate.c
parent26ff13047e3dc6c0230a629867e8dbd4a15a7626 (diff)
downloadlinux-de1414a654e66b81b5348dbc5259ecf2fb61655e.tar.xz
fs: export inode_to_bdi and use it in favor of mapping->backing_dev_info
Now that we got rid of the bdi abuse on character devices we can always use sb->s_bdi to get at the backing_dev_info for a file, except for the block device special case. Export inode_to_bdi and replace uses of mapping->backing_dev_info with it to prepare for the removal of mapping->backing_dev_info. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Tejun Heo <tj@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'mm/truncate.c')
-rw-r--r--mm/truncate.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/truncate.c b/mm/truncate.c
index f1e4d6052369..ddec5a5966d7 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -112,7 +112,7 @@ void cancel_dirty_page(struct page *page, unsigned int account_size)
struct address_space *mapping = page->mapping;
if (mapping && mapping_cap_account_dirty(mapping)) {
dec_zone_page_state(page, NR_FILE_DIRTY);
- dec_bdi_stat(mapping->backing_dev_info,
+ dec_bdi_stat(inode_to_bdi(mapping->host),
BDI_RECLAIMABLE);
if (account_size)
task_io_account_cancelled_write(account_size);