Add the posix_fallocate(2) syscall. The default implementation in

vop_stdallocate() is filesystem agnostic and will run as slow as a
read/write loop in userspace; however, it serves to correctly
implement the functionality for filesystems that do not implement a
VOP_ALLOCATE.

Note that __FreeBSD_version was already bumped today to 900036 for any
ports which would like to use this function.

Also reserve space in the syscall table for posix_fadvise(2).

Reviewed by:	-arch (previous version)

1 files changed, 12 insertions, 0 deletions

diff --git a/sys/compat/freebsd32/freebsd32_misc.c b/sys/compat/freebsd32/freebsd32_misc.c
index 5772c0e..23985d3 100644
--- a/sys/compat/freebsd32/freebsd32_misc.c
+++ b/sys/compat/freebsd32/freebsd32_misc.c
@@ -2790,3 +2790,15 @@ freebsd32_kldstat(struct thread *td, struct freebsd32_kldstat_args *uap)
 	bcopy(&stat.pathname[0], &stat32.pathname[0], sizeof(stat.pathname));
 	return (copyout(&stat32, uap->stat, version));
 }
+
+int
+freebsd32_posix_fallocate(struct thread *td,
+    struct freebsd32_posix_fallocate_args *uap)
+{
+	struct posix_fallocate_args ap;
+
+	ap.fd = uap->fd;
+	ap.offset = (uap->offsetlo | ((off_t)uap->offsethi << 32));
+	ap.len = (uap->lenlo | ((off_t)uap->lenhi << 32));
+	return (posix_fallocate(td, &ap));
+}