GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-26 08:31:13 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

writeback: make writeback_in_progress() take bdi_writeback instead of backing_dev_info

Browse source 
writeback_in_progress() currently takes @bdi and returns whether
writeback is in progress on its root wb (bdi_writeback).  In
preparation for cgroup writeback support, make it take wb instead.
While at it, make it an inline function.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Tejun Heo 2015-05-22 17:13:53 -04:00 • committed by Jens Axboe
parent a06fd6b102
commit bc05873dcc
3 changed files with 14 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

15
fs/fs-writeback.c
View file

@ -65,19 +65,6 @@ struct wb_writeback_work {
*/
unsigned int dirtytime_expire_interval = 12 * 60 * 60;
/**
* writeback_in_progress - determine whether there is writeback in progress
* @bdi: the device's backing_dev_info structure.
*
* Determine whether there is writeback waiting to be handled against a
* backing device.
*/
int writeback_in_progress(struct backing_dev_info *bdi)
{
return test_bit(WB_writeback_running, &bdi->wb.state);
}
EXPORT_SYMBOL(writeback_in_progress);
static inline struct inode *wb_inode(struct list_head *head)
{
return list_entry(head, struct inode, i_wb_list);
@ -1532,7 +1519,7 @@ int try_to_writeback_inodes_sb_nr(struct super_block *sb,
unsigned long nr,
enum wb_reason reason)
{
if (writeback_in_progress(sb->s_bdi))
if (writeback_in_progress(&sb->s_bdi->wb))
return 1;
if (!down_read_trylock(&sb->s_umount))