threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __DRBD_INTERVAL_H
|
|
#define __DRBD_INTERVAL_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/rbtree.h>
|
|
|
|
struct drbd_interval {
|
|
struct rb_node rb;
|
|
sector_t sector; /* start sector of the interval */
|
|
unsigned int size; /* size in bytes */
|
|
sector_t end; /* highest interval end in subtree */
|
|
unsigned int local:1 /* local or remote request? */;
|
|
unsigned int waiting:1; /* someone is waiting for completion */
|
|
unsigned int completed:1; /* this has been completed already;
|
|
* ignore for conflict detection */
|
|
};
|
|
|
|
static inline void drbd_clear_interval(struct drbd_interval *i)
|
|
{
|
|
RB_CLEAR_NODE(&i->rb);
|
|
}
|
|
|
|
static inline bool drbd_interval_empty(struct drbd_interval *i)
|
|
{
|
|
return RB_EMPTY_NODE(&i->rb);
|
|
}
|
|
|
|
extern bool drbd_insert_interval(struct rb_root *, struct drbd_interval *);
|
|
extern bool drbd_contains_interval(struct rb_root *, sector_t,
|
|
struct drbd_interval *);
|
|
extern void drbd_remove_interval(struct rb_root *, struct drbd_interval *);
|
|
extern struct drbd_interval *drbd_find_overlap(struct rb_root *, sector_t,
|
|
unsigned int);
|
|
extern struct drbd_interval *drbd_next_overlap(struct drbd_interval *, sector_t,
|
|
unsigned int);
|
|
|
|
#define drbd_for_each_overlap(i, root, sector, size) \
|
|
for (i = drbd_find_overlap(root, sector, size); \
|
|
i; \
|
|
i = drbd_next_overlap(i, sector, size))
|
|
|
|
#endif /* __DRBD_INTERVAL_H */
|