7e5fec3168
This contains various cosmetic fixes ranging from simple typos to const-ifying, and using booleans properly. Original commit messages from Fabian's patch set: drbd: debugfs: constify drbd_version_fops drbd: use seq_put instead of seq_print where possible drbd: include linux/uaccess.h instead of asm/uaccess.h drbd: use const char * const for drbd strings drbd: kerneldoc warning fix in w_e_end_data_req() drbd: use unsigned for one bit fields drbd: use bool for peer is_ states drbd: fix typo drbd: use | for bitmask combination drbd: use true/false for bool drbd: fix drbd_bm_init() comments drbd: introduce peer state union drbd: fix maybe_pull_ahead() locking comments drbd: use bool for growing drbd: remove redundant declarations drbd: replace if/BUG by BUG_ON Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Roland Kammerer <roland.kammerer@linbit.com> Signed-off-by: Jens Axboe <axboe@fb.com>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
#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 */
|