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authorBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2012-04-17 09:30:15 +0200
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2013-02-11 09:42:15 +0100
commit5643900913f64c00f1c2958914586708efa5a473 (patch)
tree4b0c5fcf655a00181098bbdfee1614fc119dd10a /libc/sysdeps/linux/common/bits
parent971db25812b6b7176f509a5f37964610a8f4b475 (diff)
libc: add posix_fallocate()
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common/bits')
-rw-r--r--libc/sysdeps/linux/common/bits/kernel-features.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/kernel-features.h b/libc/sysdeps/linux/common/bits/kernel-features.h
index 4d1e0cbc3..6184c2b9d 100644
--- a/libc/sysdeps/linux/common/bits/kernel-features.h
+++ b/libc/sysdeps/linux/common/bits/kernel-features.h
@@ -495,6 +495,14 @@
# define __ASSUME_PRIVATE_FUTEX 1
#endif
+/* Support for fallocate was added in 2.6.23,
+ on s390 only after 2.6.23-rc1, on alpha only after 2.6.33-rc1. */
+#if __LINUX_KERNEL_VERSION >= 0x020617 \
+ && (!defined __s390__ || __LINUX_KERNEL_VERSION >= 0x020618) \
+ && (!defined __alpha__ || __LINUX_KERNEL_VERSION >= 0x020621)
+# define __ASSUME_FALLOCATE 1
+#endif
+
/* getcpu is a syscall for x86-64 since 3.1. */
#if defined __x86_64__ && __LINUX_KERNEL_VERSION >= 0x030100
# define __ASSUME_GETCPU_SYSCALL 1