diff options
| author | Tejun Heo <tj@kernel.org> | 2015-05-22 23:13:53 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-06-02 16:33:36 +0200 |
| commit | bc05873dccd27d75d6acdf812c3edfb181f1ba17 (patch) | |
| tree | e281a65c0688c6d4987ea621263dc69d99d51bd2 /fs | |
| parent | writeback: make laptop_mode_timer_fn() handle multiple bdi_writeback's (diff) | |
| download | linux-bc05873dccd27d75d6acdf812c3edfb181f1ba17.tar.xz linux-bc05873dccd27d75d6acdf812c3edfb181f1ba17.zip | |
writeback: make writeback_in_progress() take bdi_writeback instead of backing_dev_info
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fs-writeback.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 79f11af67357..45baf6c89b99 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -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)) |