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Differential D28422 Diff 83124 sys/sys/malloc.h

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sys/sys/malloc.h

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#include <sys/_mutex.h> #include <sys/_mutex.h>
#include <machine/_limits.h> #include <machine/_limits.h>
#define MINALLOCSIZE UMA_SMALLEST_UNIT #define MINALLOCSIZE UMA_SMALLEST_UNIT
/* /*
* Flags to memory allocation functions. * Flags to memory allocation functions.
*/ */
#define M_NOWAIT 0x0001 /* do not block */ #define M_NOWAIT 0x0001 /* do not block */
kibUnsubmitted
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I think it is time to use 8 digits for M_ constants. Or use the flags from low byte, they are available I believe.

kib: I think it is time to use 8 digits for M_ constants. Or use the flags from low byte, they are…
#define M_WAITOK 0x0002 /* ok to block */ #define M_WAITOK 0x0002 /* ok to block */
#define M_ZERO 0x0100 /* bzero the allocation */ #define M_ZERO 0x0100 /* bzero the allocation */
#define M_NOVM 0x0200 /* don't ask VM for pages */ #define M_NOVM 0x0200 /* don't ask VM for pages */
#define M_USE_RESERVE 0x0400 /* can alloc out of reserve memory */ #define M_USE_RESERVE 0x0400 /* can alloc out of reserve memory */
#define M_NODUMP 0x0800 /* don't dump pages in this allocation */ #define M_NODUMP 0x0800 /* don't dump pages in this allocation */
#define M_FIRSTFIT 0x1000 /* only for vmem, fast fit */ #define M_FIRSTFIT 0x1000 /* only for vmem, fast fit */
#define M_BESTFIT 0x2000 /* only for vmem, low fragmentation */ #define M_BESTFIT 0x2000 /* only for vmem, low fragmentation */
#define M_EXEC 0x4000 /* allocate executable space */ #define M_EXEC 0x4000 /* allocate executable space */
#define M_NEXTFIT 0x8000 /* only for vmem, follow cursor */ #define M_NEXTFIT 0x8000 /* only for vmem, follow cursor */
#define M_NORECLAIM 0x10000 /* do not reclaim after failure */
#define M_VERSION 2020110501 #define M_VERSION 2020110501
/* /*
* Two malloc type structures are present: malloc_type, which is used by a * Two malloc type structures are present: malloc_type, which is used by a
* type owner to declare the type, and malloc_type_internal, which holds * type owner to declare the type, and malloc_type_internal, which holds
* malloc-owned statistics and other ABI-sensitive fields, such as the set of * malloc-owned statistics and other ABI-sensitive fields, such as the set of
* malloc statistics indexed by the compile-time MAXCPU constant. * malloc statistics indexed by the compile-time MAXCPU constant.
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