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authorChristoph Hellwig <hch@lst.de>2022-04-19 09:33:00 +0300
committerJens Axboe <axboe@kernel.dk>2022-05-10 15:30:05 +0300
commit754d96798fab1316f4f14bb86cf3c0244cb2b20b (patch)
tree1b7a80b4600dce39b0c0e05290cb5c6890d42045 /drivers/block/loop.c
parent49c3b9266a718dbd73c42e004288b4bb2ea0ac0b (diff)
downloadlinux-754d96798fab1316f4f14bb86cf3c0244cb2b20b.tar.xz
loop: remove loop.h
Merge loop.h into loop.c as all the content is only used there. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20220419063303.583106-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/loop.c')
-rw-r--r--drivers/block/loop.c57
1 files changed, 54 insertions, 3 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 322d92f958ea..533294a047e0 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -59,7 +59,6 @@
#include <linux/errno.h>
#include <linux/major.h>
#include <linux/wait.h>
-#include <linux/blkdev.h>
#include <linux/blkpg.h>
#include <linux/init.h>
#include <linux/swap.h>
@@ -80,10 +79,62 @@
#include <linux/blk-cgroup.h>
#include <linux/sched/mm.h>
#include <linux/statfs.h>
+#include <linux/uaccess.h>
+#include <linux/blk-mq.h>
+#include <linux/spinlock.h>
+#include <uapi/linux/loop.h>
+
+/* Possible states of device */
+enum {
+ Lo_unbound,
+ Lo_bound,
+ Lo_rundown,
+ Lo_deleting,
+};
-#include "loop.h"
+struct loop_func_table;
+
+struct loop_device {
+ int lo_number;
+ loff_t lo_offset;
+ loff_t lo_sizelimit;
+ int lo_flags;
+ char lo_file_name[LO_NAME_SIZE];
+
+ struct file * lo_backing_file;
+ struct block_device *lo_device;
+
+ gfp_t old_gfp_mask;
+
+ spinlock_t lo_lock;
+ int lo_state;
+ spinlock_t lo_work_lock;
+ struct workqueue_struct *workqueue;
+ struct work_struct rootcg_work;
+ struct list_head rootcg_cmd_list;
+ struct list_head idle_worker_list;
+ struct rb_root worker_tree;
+ struct timer_list timer;
+ bool use_dio;
+ bool sysfs_inited;
+
+ struct request_queue *lo_queue;
+ struct blk_mq_tag_set tag_set;
+ struct gendisk *lo_disk;
+ struct mutex lo_mutex;
+ bool idr_visible;
+};
-#include <linux/uaccess.h>
+struct loop_cmd {
+ struct list_head list_entry;
+ bool use_aio; /* use AIO interface to handle I/O */
+ atomic_t ref; /* only for aio */
+ long ret;
+ struct kiocb iocb;
+ struct bio_vec *bvec;
+ struct cgroup_subsys_state *blkcg_css;
+ struct cgroup_subsys_state *memcg_css;
+};
#define LOOP_IDLE_WORKER_TIMEOUT (60 * HZ)
#define LOOP_DEFAULT_HW_Q_DEPTH (128)