Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __DRBD_INTERVAL_H
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#define __DRBD_INTERVAL_H
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#include <linux/types.h>
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#include <linux/rbtree.h>
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struct drbd_interval {
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struct rb_node rb;
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sector_t sector; /* start sector of the interval */
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unsigned int size; /* size in bytes */
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sector_t end; /* highest interval end in subtree */
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unsigned int local:1 /* local or remote request? */;
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unsigned int waiting:1; /* someone is waiting for completion */
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unsigned int completed:1; /* this has been completed already;
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* ignore for conflict detection */
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};
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static inline void drbd_clear_interval(struct drbd_interval *i)
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{
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RB_CLEAR_NODE(&i->rb);
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}
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static inline bool drbd_interval_empty(struct drbd_interval *i)
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{
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return RB_EMPTY_NODE(&i->rb);
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}
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extern bool drbd_insert_interval(struct rb_root *, struct drbd_interval *);
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extern bool drbd_contains_interval(struct rb_root *, sector_t,
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struct drbd_interval *);
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extern void drbd_remove_interval(struct rb_root *, struct drbd_interval *);
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extern struct drbd_interval *drbd_find_overlap(struct rb_root *, sector_t,
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unsigned int);
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extern struct drbd_interval *drbd_next_overlap(struct drbd_interval *, sector_t,
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unsigned int);
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#define drbd_for_each_overlap(i, root, sector, size) \
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for (i = drbd_find_overlap(root, sector, size); \
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i; \
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i = drbd_next_overlap(i, sector, size))
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#endif /* __DRBD_INTERVAL_H */
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