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authorNeilBrown <neilb@suse.de>2011-04-18 18:25:42 +1000
committerNeilBrown <neilb@suse.de>2011-04-18 18:25:42 +1000
commit482c083492ddaa32ef5864bae3d143dc8bcdf7d1 (patch)
tree75017fd1a51fe945c65b3600442ddaa20b636b1a /drivers/md/md.h
parentaf1db72d8b340f97ad12b60175afdef43e6f0e60 (diff)
md - remove old plugging code.
md has some plugging infrastructure for RAID5 to use because the normal plugging infrastructure required a 'request_queue', and when called from dm, RAID5 doesn't have one of those available. This relied on the ->unplug_fn callback which doesn't exist any more. So remove all of that code, both in md and raid5. Subsequent patches with restore the plugging functionality. Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md.h')
-rw-r--r--drivers/md/md.h22
1 files changed, 0 insertions, 22 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 52b407369e1..fad90228672 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -29,26 +29,6 @@
typedef struct mddev_s mddev_t;
typedef struct mdk_rdev_s mdk_rdev_t;
-/* generic plugging support - like that provided with request_queue,
- * but does not require a request_queue
- */
-struct plug_handle {
- void (*unplug_fn)(struct plug_handle *);
- struct timer_list unplug_timer;
- struct work_struct unplug_work;
- unsigned long unplug_flag;
-};
-#define PLUGGED_FLAG 1
-void plugger_init(struct plug_handle *plug,
- void (*unplug_fn)(struct plug_handle *));
-void plugger_set_plug(struct plug_handle *plug);
-int plugger_remove_plug(struct plug_handle *plug);
-static inline void plugger_flush(struct plug_handle *plug)
-{
- del_timer_sync(&plug->unplug_timer);
- cancel_work_sync(&plug->unplug_work);
-}
-
/*
* MD's 'extended' device
*/
@@ -336,7 +316,6 @@ struct mddev_s
struct list_head all_mddevs;
struct attribute_group *to_remove;
- struct plug_handle *plug; /* if used by personality */
struct bio_set *bio_set;
@@ -516,7 +495,6 @@ extern int md_integrity_register(mddev_t *mddev);
extern void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
extern int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale);
extern void restore_bitmap_write_access(struct file *file);
-extern void md_unplug(mddev_t *mddev);
extern void mddev_init(mddev_t *mddev);
extern int md_run(mddev_t *mddev);