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authorTejun Heo <tj@kernel.org>2014-09-08 03:04:01 +0400
committerJens Axboe <axboe@fb.com>2014-09-08 20:00:43 +0400
commit018a17bdc8658ad448497c84d4ba21b6985820ec (patch)
tree77bfb4ea1b75452dd68817d59770e8d1c6bd37ec /include/linux/backing-dev.h
parent1a1e4530eacca37e85a4d66a164273c7dba9110c (diff)
downloadlinux-018a17bdc8658ad448497c84d4ba21b6985820ec.tar.xz
bdi: reimplement bdev_inode_switch_bdi()
A block_device may be attached to different gendisks and thus different bdis over time. bdev_inode_switch_bdi() is used to switch the associated bdi. The function assumes that the inode could be dirty and transfers it between bdis if so. This is a bit nasty in that it reaches into bdi internals. This patch reimplements the function so that it writes out the inode if dirty. This is a lot simpler and can be implemented without exposing bdi internals. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/backing-dev.h')
-rw-r--r--include/linux/backing-dev.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 2103a7fa3fd8..5da6012b7a14 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -121,7 +121,6 @@ void bdi_start_background_writeback(struct backing_dev_info *bdi);
void bdi_writeback_workfn(struct work_struct *work);
int bdi_has_dirty_io(struct backing_dev_info *bdi);
void bdi_wakeup_thread_delayed(struct backing_dev_info *bdi);
-void bdi_lock_two(struct bdi_writeback *wb1, struct bdi_writeback *wb2);
extern spinlock_t bdi_lock;
extern struct list_head bdi_list;