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shm_open2: Implement SHM_GROW_ON_WRITE 

Lack of SHM_GROW_ON_WRITE is actively breaking Python's memfd_create tests,
so go ahead and implement it. A future change will make memfd_create always
set SHM_GROW_ON_WRITE, to match Linux behavior and unbreak Python's tests
on -CURRENT.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D25502
This commit is contained in:
Kyle Evans 2020-07-10 00:43:45 +00:00 committed by Sebastian Huber
parent 1a840361e8
commit c95c267a46
1 changed files with 1 additions and 0 deletions
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1
newlib/libc/sys/rtems/include/sys/mman.h
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@ -190,6 +190,7 @@
* shmflags for shm_open2() * shmflags for shm_open2()
*/ */
#define SHM_ALLOW_SEALING 0x00000001 #define SHM_ALLOW_SEALING 0x00000001
#define SHM_GROW_ON_WRITE 0x00000002
/* /*
* Flags for memfd_create(). * Flags for memfd_create().