diff options
| author | Tahsin Erdogan <tahsin@google.com> | 2016-02-16 13:34:39 -0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-11-29 15:25:11 +0800 |
| commit | 1f565de67d6f2991f10ab591d819135ba4d3fe0f (patch) | |
| tree | 73705d8f85724f8ad98b4e001f416f26b53cf8f7 | |
| parent | aaaf9e59c00aa2ff9c2bd1da05c0cf1ba2a9634a (diff) | |
writeback: initialize inode members that track writeback history
inode struct members that track cgroup writeback information
should be reinitialized when inode gets allocated from
kmem_cache. Otherwise, their values remain and get used by the
new inode.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Fixes: d10c80955265 ("writeback: implement foreign cgroup inode bdi_writeback switching")
Signed-off-by: Jens Axboe <axboe@fb.com>
(cherry picked from commit 3d65ae4634ed8350aee98a4e6f4e41fe40c7d282)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
| -rw-r--r-- | fs/inode.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/inode.c b/fs/inode.c index b0edef500590..2c16b758831d 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -154,6 +154,12 @@ int inode_init_always(struct super_block *sb, struct inode *inode) inode->i_rdev = 0; inode->dirtied_when = 0; +#ifdef CONFIG_CGROUP_WRITEBACK + inode->i_wb_frn_winner = 0; + inode->i_wb_frn_avg_time = 0; + inode->i_wb_frn_history = 0; +#endif + if (security_inode_alloc(inode)) goto out; spin_lock_init(&inode->i_lock); |