diff options
| author | Tejun Heo <tj@kernel.org> | 2015-05-22 17:14:02 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-06-02 08:33:37 -0600 |
| commit | 0747259d13febfcc838980a63c414c9b920cea6f (patch) | |
| tree | 648ca5300a5ccbf0500a7c5e8135f2ad65085383 /fs/fs-writeback.c | |
| parent | db125360409fc320790e0d38218bd7a3e9cd2552 (diff) | |
| download | linux-0747259d13febfcc838980a63c414c9b920cea6f.tar.bz2 | |
writeback: dirty inodes against their matching cgroup bdi_writeback's
__mark_inode_dirty() always dirtied the inode against the root wb
(bdi_writeback). The previous patches added all the infrastructure
necessary to attribute an inode against the wb of the dirtying cgroup.
This patch updates __mark_inode_dirty() so that it uses the wb
associated with the inode instead of unconditionally using the root
one.
Currently, none of the filesystems has FS_CGROUP_WRITEBACK and all
pages will keep being dirtied against the root wb.
v2: Updated for per-inode wb association.
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/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 59d76f6c9d8d..881ea5d97c00 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -1504,7 +1504,6 @@ static noinline void block_dump___mark_inode_dirty(struct inode *inode) void __mark_inode_dirty(struct inode *inode, int flags) { struct super_block *sb = inode->i_sb; - struct backing_dev_info *bdi = NULL; int dirtytime; trace_writeback_mark_inode_dirty(inode, flags); @@ -1574,30 +1573,30 @@ void __mark_inode_dirty(struct inode *inode, int flags) * reposition it (that would break b_dirty time-ordering). */ if (!was_dirty) { + struct bdi_writeback *wb = inode_to_wb(inode); struct list_head *dirty_list; bool wakeup_bdi = false; - bdi = inode_to_bdi(inode); spin_unlock(&inode->i_lock); - spin_lock(&bdi->wb.list_lock); + spin_lock(&wb->list_lock); - WARN(bdi_cap_writeback_dirty(bdi) && - !test_bit(WB_registered, &bdi->wb.state), - "bdi-%s not registered\n", bdi->name); + WARN(bdi_cap_writeback_dirty(wb->bdi) && + !test_bit(WB_registered, &wb->state), + "bdi-%s not registered\n", wb->bdi->name); inode->dirtied_when = jiffies; if (dirtytime) inode->dirtied_time_when = jiffies; if (inode->i_state & (I_DIRTY_INODE | I_DIRTY_PAGES)) - dirty_list = &bdi->wb.b_dirty; + dirty_list = &wb->b_dirty; else - dirty_list = &bdi->wb.b_dirty_time; + dirty_list = &wb->b_dirty_time; - wakeup_bdi = inode_wb_list_move_locked(inode, &bdi->wb, + wakeup_bdi = inode_wb_list_move_locked(inode, wb, dirty_list); - spin_unlock(&bdi->wb.list_lock); + spin_unlock(&wb->list_lock); trace_writeback_dirty_inode_enqueue(inode); /* @@ -1606,8 +1605,8 @@ void __mark_inode_dirty(struct inode *inode, int flags) * to make sure background write-back happens * later. */ - if (bdi_cap_writeback_dirty(bdi) && wakeup_bdi) - wb_wakeup_delayed(&bdi->wb); + if (bdi_cap_writeback_dirty(wb->bdi) && wakeup_bdi) + wb_wakeup_delayed(wb); return; } } |