diff options
| author | Tejun Heo <tj@kernel.org> | 2014-09-08 08:04:01 +0900 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-09-13 13:35:22 +0200 |
| commit | 2679d033a9192f766a82e75b2b3b4226a9e90484 (patch) | |
| tree | 729df79e91ddfdf47671f050734d5706c602deca /mm/backing-dev.c | |
| parent | d176202f7b69cc04138347c0fc4488c0a8170870 (diff) | |
| download | android_kernel_m2note-2679d033a9192f766a82e75b2b3b4226a9e90484.tar.gz | |
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>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Diffstat (limited to 'mm/backing-dev.c')
| -rw-r--r-- | mm/backing-dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index e7bb99dbc..4eabfc561 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -40,7 +40,7 @@ LIST_HEAD(bdi_list); /* bdi_wq serves all asynchronous writeback tasks */ struct workqueue_struct *bdi_wq; -void bdi_lock_two(struct bdi_writeback *wb1, struct bdi_writeback *wb2) +static void bdi_lock_two(struct bdi_writeback *wb1, struct bdi_writeback *wb2) { if (wb1 < wb2) { spin_lock(&wb1->list_lock); |