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r13263: Check whether open(2) will accept the O_DIRECT flag. This should fix the

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build on NetBSD.
(This used to be commit 7354de62a7)
This commit is contained in:
James Peach 2006-01-31 21:56:12 +00:00 committed by Gerald (Jerry) Carter
parent b60415745a
commit ad01edb37b
2 changed files with 18 additions and 1 deletions
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12
source4/build/m4/rewrite.m4
View File

@ -496,6 +496,18 @@ fi
;;
esac
AC_CACHE_CHECK([for O_DIRECT flag to open(2)],samba_cv_HAVE_OPEN_O_DIRECT,[
AC_TRY_COMPILE([
#include <unistd.h>
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif],
[int fd = open("/dev/null", O_DIRECT);],
samba_cv_HAVE_OPEN_O_DIRECT=yes,samba_cv_HAVE_OPEN_O_DIRECT=no)])
if test x"$samba_cv_HAVE_OPEN_O_DIRECT" = x"yes"; then
AC_DEFINE(HAVE_OPEN_O_DIRECT,1,[Whether the open(2) accepts O_DIRECT])
fi
###############################################
# test for where we get crypt() from
AC_CHECK_LIB_EXT(crypt, CRYPT_LIBS, crypt)

7
source4/client/cifsddio.c
View File

@ -99,8 +99,13 @@ open_fd_handle(const char * path, uint64_t iosz, int options)
fdh->h.io_write = fd_write_func;
fdh->h.io_seek = fd_seek_func;
if (options & DD_DIRECT_IO)
if (options & DD_DIRECT_IO) {
#ifdef HAVE_OPEN_O_DIRECT
oflags |= O_DIRECT;
#else
DEBUG(1, ("no support for direct IO on this platform\n"));
#endif
}
if (options & DD_SYNC_IO)
oflags |= O_SYNC;