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blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner()

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wbc_account_io() does a very specific job - try to see which cgroup is
actually dirtying an inode and transfer its ownership to the majority
dirtier if needed.  The name is too generic and confusing.  Let's
rename it to something more specific.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Tejun Heo 2019-06-27 13:39:49 -07:00 • committed by Jens Axboe
parent 9b0eb69b75
commit 34e51a5e1a
8 changed files with 16 additions and 16 deletions
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8
fs/fs-writeback.c
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@ -706,7 +706,7 @@ void wbc_detach_inode(struct writeback_control *wbc)
EXPORT_SYMBOL_GPL(wbc_detach_inode);
/**
* wbc_account_io - account IO issued during writeback
* wbc_account_cgroup_owner - account writeback to update inode cgroup ownership
* @wbc: writeback_control of the writeback in progress
* @page: page being written out
* @bytes: number of bytes being written out
@ -715,8 +715,8 @@ EXPORT_SYMBOL_GPL(wbc_detach_inode);
* controlled by @wbc. Keep the book for foreign inode detection. See
* wbc_detach_inode().
*/
void wbc_account_io(struct writeback_control *wbc, struct page *page,
size_t bytes)
void wbc_account_cgroup_owner(struct writeback_control *wbc, struct page *page,
size_t bytes)
{
struct cgroup_subsys_state *css;
int id;
@ -753,7 +753,7 @@ void wbc_account_io(struct writeback_control *wbc, struct page *page,
else
wbc->wb_tcand_bytes -= min(bytes, wbc->wb_tcand_bytes);
}
EXPORT_SYMBOL_GPL(wbc_account_io);
EXPORT_SYMBOL_GPL(wbc_account_cgroup_owner);
/**
* inode_congested - test whether an inode is congested