diff options
Diffstat (limited to 'sys/contrib/openzfs/include/os/linux/spl')
| -rw-r--r-- | sys/contrib/openzfs/include/os/linux/spl/sys/atomic.h | 32 | ||||
| -rw-r--r-- | sys/contrib/openzfs/include/os/linux/spl/sys/debug.h | 4 | ||||
| -rw-r--r-- | sys/contrib/openzfs/include/os/linux/spl/sys/kmem.h | 61 | ||||
| -rw-r--r-- | sys/contrib/openzfs/include/os/linux/spl/sys/misc.h | 6 | ||||
| -rw-r--r-- | sys/contrib/openzfs/include/os/linux/spl/sys/mod.h (renamed from sys/contrib/openzfs/include/os/linux/spl/sys/mod_os.h) | 0 | ||||
| -rw-r--r-- | sys/contrib/openzfs/include/os/linux/spl/sys/mutex.h | 2 |
6 files changed, 49 insertions, 56 deletions
diff --git a/sys/contrib/openzfs/include/os/linux/spl/sys/atomic.h b/sys/contrib/openzfs/include/os/linux/spl/sys/atomic.h index b2a39d7d6cbf..f4bcd58bd281 100644 --- a/sys/contrib/openzfs/include/os/linux/spl/sys/atomic.h +++ b/sys/contrib/openzfs/include/os/linux/spl/sys/atomic.h @@ -71,6 +71,22 @@ atomic_cas_ptr(volatile void *target, void *cmp, void *newval) return ((void *)atomic_cas_64((volatile uint64_t *)target, (uint64_t)cmp, (uint64_t)newval)); } +static __inline__ void * +atomic_swap_ptr(volatile void *target, void *newval) +{ + return ((void *)atomic_swap_64((volatile uint64_t *)target, + (uint64_t)newval)); +} +static __inline__ void * +atomic_load_ptr(volatile void *target) +{ + return ((void *)atomic_load_64((volatile uint64_t *)target)); +} +static __inline__ void +atomic_store_ptr(volatile void *target, void *newval) +{ + atomic_store_64((volatile uint64_t *)target, (uint64_t)newval); +} #else /* _LP64 */ static __inline__ void * atomic_cas_ptr(volatile void *target, void *cmp, void *newval) @@ -78,6 +94,22 @@ atomic_cas_ptr(volatile void *target, void *cmp, void *newval) return ((void *)atomic_cas_32((volatile uint32_t *)target, (uint32_t)cmp, (uint32_t)newval)); } +static __inline__ void * +atomic_swap_ptr(volatile void *target, void *newval) +{ + return ((void *)atomic_swap_32((volatile uint32_t *)target, + (uint32_t)newval)); +} +static __inline__ void * +atomic_load_ptr(volatile void *target) +{ + return ((void *)atomic_load_32((volatile uint32_t *)target)); +} +static __inline__ void +atomic_store_ptr(volatile void *target, void *newval) +{ + atomic_store_32((volatile uint32_t *)target, (uint32_t)newval); +} #endif /* _LP64 */ #endif /* _SPL_ATOMIC_H */ diff --git a/sys/contrib/openzfs/include/os/linux/spl/sys/debug.h b/sys/contrib/openzfs/include/os/linux/spl/sys/debug.h index 1671ba4074da..85b96e1e23a7 100644 --- a/sys/contrib/openzfs/include/os/linux/spl/sys/debug.h +++ b/sys/contrib/openzfs/include/os/linux/spl/sys/debug.h @@ -69,6 +69,10 @@ #define __maybe_unused __attribute__((unused)) #endif +#ifndef __must_check +#define __must_check __attribute__((__warn_unused_result__)) +#endif + /* * Without this, we see warnings from objtool during normal Linux builds when * the kernel is built with CONFIG_STACK_VALIDATION=y: diff --git a/sys/contrib/openzfs/include/os/linux/spl/sys/kmem.h b/sys/contrib/openzfs/include/os/linux/spl/sys/kmem.h index 995236117dd4..fe34de9c179e 100644 --- a/sys/contrib/openzfs/include/os/linux/spl/sys/kmem.h +++ b/sys/contrib/openzfs/include/os/linux/spl/sys/kmem.h @@ -61,7 +61,7 @@ void *spl_kvmalloc(size_t size, gfp_t flags); /* * Convert a KM_* flags mask to its Linux GFP_* counterpart. The conversion * function is context aware which means that KM_SLEEP allocations can be - * safely used in syncing contexts which have set PF_FSTRANS. + * safely used in syncing contexts which have set SPL_FSTRANS. */ static inline gfp_t kmem_flags_convert(int flags) @@ -91,25 +91,11 @@ typedef struct { } fstrans_cookie_t; /* - * Introduced in Linux 3.9, however this cannot be solely relied on before - * Linux 3.18 as it doesn't turn off __GFP_FS as it should. + * SPL_FSTRANS is the set of flags that indicate that the task is in a + * filesystem or IO codepath, and so any allocation must not call back into + * those codepaths (eg to swap). */ -#ifdef PF_MEMALLOC_NOIO -#define __SPL_PF_MEMALLOC_NOIO (PF_MEMALLOC_NOIO) -#else -#define __SPL_PF_MEMALLOC_NOIO (0) -#endif - -/* - * PF_FSTRANS is removed from Linux 4.12 - */ -#ifdef PF_FSTRANS -#define __SPL_PF_FSTRANS (PF_FSTRANS) -#else -#define __SPL_PF_FSTRANS (0) -#endif - -#define SPL_FSTRANS (__SPL_PF_FSTRANS|__SPL_PF_MEMALLOC_NOIO) +#define SPL_FSTRANS (PF_MEMALLOC_NOIO) static inline fstrans_cookie_t spl_fstrans_mark(void) @@ -141,43 +127,8 @@ spl_fstrans_check(void) return (current->flags & SPL_FSTRANS); } -/* - * specifically used to check PF_FSTRANS flag, cannot be relied on for - * checking spl_fstrans_mark(). - */ -static inline int -__spl_pf_fstrans_check(void) -{ - return (current->flags & __SPL_PF_FSTRANS); -} - -/* - * Kernel compatibility for GFP flags - */ -/* < 4.13 */ -#ifndef __GFP_RETRY_MAYFAIL -#define __GFP_RETRY_MAYFAIL __GFP_REPEAT -#endif -/* < 4.4 */ -#ifndef __GFP_RECLAIM -#define __GFP_RECLAIM __GFP_WAIT -#endif - -#ifdef HAVE_ATOMIC64_T -#define kmem_alloc_used_add(size) atomic64_add(size, &kmem_alloc_used) -#define kmem_alloc_used_sub(size) atomic64_sub(size, &kmem_alloc_used) -#define kmem_alloc_used_read() atomic64_read(&kmem_alloc_used) -#define kmem_alloc_used_set(size) atomic64_set(&kmem_alloc_used, size) extern atomic64_t kmem_alloc_used; -extern unsigned long long kmem_alloc_max; -#else /* HAVE_ATOMIC64_T */ -#define kmem_alloc_used_add(size) atomic_add(size, &kmem_alloc_used) -#define kmem_alloc_used_sub(size) atomic_sub(size, &kmem_alloc_used) -#define kmem_alloc_used_read() atomic_read(&kmem_alloc_used) -#define kmem_alloc_used_set(size) atomic_set(&kmem_alloc_used, size) -extern atomic_t kmem_alloc_used; -extern unsigned long long kmem_alloc_max; -#endif /* HAVE_ATOMIC64_T */ +extern uint64_t kmem_alloc_max; extern unsigned int spl_kmem_alloc_warn; extern unsigned int spl_kmem_alloc_max; diff --git a/sys/contrib/openzfs/include/os/linux/spl/sys/misc.h b/sys/contrib/openzfs/include/os/linux/spl/sys/misc.h index 0b44786f8a6e..fbaaf229bd1a 100644 --- a/sys/contrib/openzfs/include/os/linux/spl/sys/misc.h +++ b/sys/contrib/openzfs/include/os/linux/spl/sys/misc.h @@ -24,7 +24,13 @@ #define _OS_LINUX_SPL_MISC_H #include <linux/kobject.h> +#include <linux/swap.h> extern void spl_signal_kobj_evt(struct block_device *bdev); +/* + * Check if the current thread is a memory reclaim thread. + */ +extern int current_is_reclaim_thread(void); + #endif diff --git a/sys/contrib/openzfs/include/os/linux/spl/sys/mod_os.h b/sys/contrib/openzfs/include/os/linux/spl/sys/mod.h index eaeb9255039e..eaeb9255039e 100644 --- a/sys/contrib/openzfs/include/os/linux/spl/sys/mod_os.h +++ b/sys/contrib/openzfs/include/os/linux/spl/sys/mod.h diff --git a/sys/contrib/openzfs/include/os/linux/spl/sys/mutex.h b/sys/contrib/openzfs/include/os/linux/spl/sys/mutex.h index f000f53ab9b6..4eca2414fc5b 100644 --- a/sys/contrib/openzfs/include/os/linux/spl/sys/mutex.h +++ b/sys/contrib/openzfs/include/os/linux/spl/sys/mutex.h @@ -111,7 +111,7 @@ spl_mutex_lockdep_on_maybe(kmutex_t *mp) \ #undef mutex_destroy #define mutex_destroy(mp) \ { \ - VERIFY3P(mutex_owner(mp), ==, NULL); \ + VERIFY0P(mutex_owner(mp)); \ } #define mutex_tryenter(mp) \ |