diff options
| author | Emmanuel Vadot <manu@FreeBSD.org> | 2022-08-09 09:03:34 +0000 |
|---|---|---|
| committer | Emmanuel Vadot <manu@FreeBSD.org> | 2022-08-18 07:46:25 +0000 |
| commit | 1a6874e3a411c7876bee55bc631119a2e1cd09a2 (patch) | |
| tree | dcad2ebaedb650f12c613015943f733cbe9c898c | |
| parent | 4370e9f1cfce6f43f170790be96b79f3da70be13 (diff) | |
| download | src-1a6874e3a411c7876bee55bc631119a2e1cd09a2.tar.gz src-1a6874e3a411c7876bee55bc631119a2e1cd09a2.zip | |
linuxkpi: Add refcount_dec_and_test
In Linux this takes a refcount_t argument but in linuxkpi struct kref
uses an atomic_t for the refcount and code in drm directly uses this
function with a kref so use an atomic_t here.
Reviewed by: bz
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D36099
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/kref.h | 1 | ||||
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/refcount.h | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/kref.h b/sys/compat/linuxkpi/common/include/linux/kref.h index 2c59794f4ddc..3b5645bf139b 100644 --- a/sys/compat/linuxkpi/common/include/linux/kref.h +++ b/sys/compat/linuxkpi/common/include/linux/kref.h @@ -43,6 +43,7 @@ #include <asm/atomic.h> struct kref { + /* XXX In Linux this is a refcount_t */ atomic_t refcount; }; diff --git a/sys/compat/linuxkpi/common/include/linux/refcount.h b/sys/compat/linuxkpi/common/include/linux/refcount.h index 7c055fb32029..6a49da530c0a 100644 --- a/sys/compat/linuxkpi/common/include/linux/refcount.h +++ b/sys/compat/linuxkpi/common/include/linux/refcount.h @@ -79,4 +79,15 @@ refcount_dec_and_lock_irqsave(refcount_t *ref, spinlock_t *lock, return (false); } +/* + * struct kref uses atomic_t and not refcount_t so + * we differ from Linux here. + */ +static inline bool +refcount_dec_and_test(atomic_t *r) +{ + + return (atomic_dec_and_test(r)); +} + #endif /* __LINUXKPI_LINUX_REFCOUNT_H__ */ |