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fix POSIX_FADV_DONTNEED/_NOREUSE on s390x 

On s390x, POSIX_FADV_DONTNEED and POSIX_FADV_NOREUSE have different
values than on all other architectures that Linux supports.

Handle this difference by wrapping their definitions in
include/fcntl.h in #ifdef, so that arch/s390x/bits/fcntl.h can
override them.
This commit is contained in:
Jonathan Neuschäfer 2019-02-20 19:07:12 +01:00 committed by Rich Felker
parent 81221e13f9
commit 4b125dd408
2 changed files with 5 additions and 0 deletions
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3
arch/s390x/bits/fcntl.h
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@ -38,3 +38,6 @@
#define F_GETOWN_EX 16
#define F_GETOWNER_UIDS 17
#define POSIX_FADV_DONTNEED 6
#define POSIX_FADV_NOREUSE 7

2
include/fcntl.h
View File

@ -66,8 +66,10 @@ int posix_fallocate(int, off_t, off_t);
#define POSIX_FADV_RANDOM 1
#define POSIX_FADV_SEQUENTIAL 2
#define POSIX_FADV_WILLNEED 3
#ifndef POSIX_FADV_DONTNEED
#define POSIX_FADV_DONTNEED 4
#define POSIX_FADV_NOREUSE 5
#endif
#undef SEEK_SET
#undef SEEK_CUR