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Remove __ASSUME_FALLOCATE.

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Given current Linux kernel version requirements, we can always assume
the fallocate syscall to be available.  This patch removes
__ASSUME_FALLOCATE and a test for whether __NR_fallocate is defined.

Tested for x86_64 and x86 that installed stripped shared libraries are
unchanged by the patch.

	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_FALLOCATE):
	Remove macro.
	* sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c: Do not
	include <kernel-features.h>.
	[!__ASSUME_FALLOCATE]: Remove conditional code.
	(posix_fallocate) [__NR_fallocate]: Make code unconditional.
This commit is contained in:
Joseph Myers
2016-03-17 12:15:51 +00:00
parent 86ed888255
commit 4674df40bb
3 changed files with 22 additions and 37 deletions
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4
sysdeps/unix/sysv/linux/kernel-features.h
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@ -75,10 +75,6 @@
/* Support for private futexes was added in 2.6.22. */
#define __ASSUME_PRIVATE_FUTEX 1
/* Support for fallocate was added in 2.6.23, on s390
only after 2.6.23-rc1. */
#define __ASSUME_FALLOCATE 1
/* Support for various CLOEXEC and NONBLOCK flags was added in
2.6.23. */
#define __ASSUME_O_CLOEXEC 1