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@@ -0,0 +1,33 @@
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+/* vi: set sw=4 ts=4: */
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+/*
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+ * sync_file_range() for uClibc
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+ *
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+ * Copyright (C) 2008 Bernhard Reutner-Fischer <uclibc@uclibc.org>
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+ *
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+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
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+ */
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+
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+#include <sys/syscall.h>
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+#if defined __USE_GNU
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+#include <fcntl.h>
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+
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+#if defined __NR_sync_file_range && defined __UCLIBC_HAS_LFS__
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+#define __NR___syscall_sync_file_range __NR_sync_file_range
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+static __inline__ _syscall6(int, __syscall_sync_file_range, int, fd,
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+ off_t, offset_hi, off_t, offset_lo,
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+ off_t, nbytes_hi, off_t, nbytes_lo, unsigned int, flags);
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+int sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags)
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+{
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+ return __syscall_sync_file_range(fd,
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+ __LONG_LONG_PAIR((long)(offset >> 32), (long)(offset & 0xffffffff)),
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+ __LONG_LONG_PAIR((long)(nbytes >> 32), (long)(nbytes & 0xffffffff)),
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+ flags);
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+}
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+#elif defined __UCLIBC_HAS_STUBS__
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+int sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags)
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+{
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+ __set_errno(ENOSYS);
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+ return -1;
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+}
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+#endif
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+#endif
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