#include <linux/quotaops.h>
#include <linux/highmem.h>
#include <linux/export.h>
+#include <linux/backing-dev.h>
#include <linux/writeback.h>
#include <linux/hash.h>
#include <linux/suspend.h>
#include <trace/events/block.h>
static int fsync_buffers_list(spinlock_t *lock, struct list_head *list);
+static int submit_bh_blkcg(int rw, struct buffer_head *bh,
+ unsigned long bio_flags,
+ struct cgroup_subsys_state *blkcg_css);
#define BH_ENTRY(list) list_entry((list), struct buffer_head, b_assoc_buffers)
struct buffer_head *bh, *head;
unsigned int blocksize, bbits;
int nr_underway = 0;
- int write_op = (wbc->sync_mode == WB_SYNC_ALL ?
- WRITE_SYNC : WRITE);
+ int write_op = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
+ struct cgroup_subsys_state *blkcg_css = inode_to_wb_blkcg_css(inode);
head = create_page_buffers(page, inode,
(1 << BH_Dirty)|(1 << BH_Uptodate));
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
- submit_bh(write_op, bh);
+ submit_bh_blkcg(write_op, bh, 0, blkcg_css);
nr_underway++;
}
bh = next;
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
clear_buffer_dirty(bh);
- submit_bh(write_op, bh);
+ submit_bh_blkcg(write_op, bh, 0, blkcg_css);
nr_underway++;
}
bh = next;
}
}
-int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
+static int submit_bh_blkcg(int rw, struct buffer_head *bh,
+ unsigned long bio_flags,
+ struct cgroup_subsys_state *blkcg_css)
{
struct bio *bio;
*/
bio = bio_alloc(GFP_NOIO, 1);
+ if (blkcg_css)
+ bio_associate_blkcg(bio, blkcg_css);
+
bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
bio->bi_io_vec[0].bv_page = bh->b_page;
submit_bio(rw, bio);
return 0;
}
+
+int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
+{
+ return submit_bh_blkcg(rw, bh, bio_flags, NULL);
+}
EXPORT_SYMBOL_GPL(_submit_bh);
int submit_bh(int rw, struct buffer_head *bh)
{
- return _submit_bh(rw, bh, 0);
+ return submit_bh_blkcg(rw, bh, 0, NULL);
}
EXPORT_SYMBOL(submit_bh);