* Write a portion of b_io inodes which belong to @sb.
*
* Return the number of pages and/or inodes written.
+ *
+ * NOTE! This is called with wb->list_lock held, and will
+ * unlock and relock that for each inode it ends up doing
+ * IO for.
*/
static long writeback_sb_inodes(struct super_block *sb,
struct bdi_writeback *wb,
unsigned long start_time = jiffies;
long write_chunk;
long wrote = 0; /* count both pages and inodes */
- struct blk_plug plug;
- blk_start_plug(&plug);
while (!list_empty(&wb->b_io)) {
struct inode *inode = wb_inode(wb->b_io.prev);
break;
}
}
- blk_finish_plug(&plug);
return wrote;
}
.range_cyclic = 1,
.reason = reason,
};
+ struct blk_plug plug;
+ blk_start_plug(&plug);
spin_lock(&wb->list_lock);
if (list_empty(&wb->b_io))
queue_io(wb, &work);
__writeback_inodes_wb(wb, &work);
spin_unlock(&wb->list_lock);
+ blk_finish_plug(&plug);
return nr_pages - work.nr_pages;
}
unsigned long oldest_jif;
struct inode *inode;
long progress;
+ struct blk_plug plug;
oldest_jif = jiffies;
work->older_than_this = &oldest_jif;
+ blk_start_plug(&plug);
spin_lock(&wb->list_lock);
for (;;) {
/*
}
}
spin_unlock(&wb->list_lock);
+ blk_finish_plug(&plug);
return nr_pages - work->nr_pages;
}