LU-2789 lod: sidestep setstripe vs rename race

[fs/lustre-release.git] / libcfs / autoconf / lustre-libcfs.m4

diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4
index dfd9c03..c52a490 100644 (file)
--- a/libcfs/autoconf/lustre-libcfs.m4
+++ b/libcfs/autoconf/lustre-libcfs.m4
@@ -93,6 +93,26 @@ AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
 ])
 ])
 
+# LIBCFS_DIGEST_SETKEY_FLAGS
+# digest_alg.dia_setkey takes 4 args (2.6.18)
+#
+AC_DEFUN([LIBCFS_DIGEST_SETKEY_FLAGS],
+[AC_MSG_CHECKING([if kernel dia_setkey takes 4 args])
+LB_LINUX_TRY_COMPILE([
+       #include <linux/err.h>
+       #include <linux/crypto.h>
+],[
+       struct digest_alg alg;
+
+       alg.dia_setkey(NULL, NULL, 0, NULL);
+],[
+       AC_MSG_RESULT([yes])
+       AC_DEFINE(HAVE_DIGEST_SETKEY_FLAGS, 1, [kernel dia_setkey takes 4 args])
+],[
+       AC_MSG_RESULT([no])
+])
+])
+
 # 2.6.19 API changes
 # kmem_cache_destroy(cachep) return void instead of
 # int
@@ -194,6 +214,21 @@ LB_LINUX_TRY_COMPILE([
                AC_MSG_RESULT(no)
        ])
 
+       AC_MSG_CHECKING([whether OFED backports have cpumask_of_node])
+       # Some OFED has cpumask_of_node backports defined in
+       # its private include/linux/cpumask.h. However, it is
+       # defined conflictingly with kernel's cpumask_of_node.
+       if test -f $OFED_BACKPORT_PATH/linux/cpumask.h; then
+               grep -q cpumask_of_node $OFED_BACKPORT_PATH/linux/cpumask.h 2>/dev/null
+               rc=$?
+               if test $rc -eq 0; then
+                       AC_DEFINE(HAVE_OFED_CPUMASK_OF_NODE, 1, [have cpumask_of_node])
+                       AC_MSG_RESULT(yes)
+               else
+                       AC_MSG_RESULT(no)
+               fi
+       fi
+
        AC_MSG_CHECKING([whether have cpumask_of_node])
        LB_LINUX_TRY_COMPILE([
                #include <linux/topology.h>
@@ -206,6 +241,18 @@ LB_LINUX_TRY_COMPILE([
                AC_MSG_RESULT(no)
        ])
 
+       AC_MSG_CHECKING([whether have cpumask_copy])
+       LB_LINUX_TRY_COMPILE([
+               #include <linux/cpumask.h>
+       ],[
+               cpumask_copy(NULL, NULL);
+       ],[
+               AC_DEFINE(HAVE_CPUMASK_COPY, 1, [have cpumask_copy])
+               AC_MSG_RESULT(yes)
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+
        AC_MSG_CHECKING([whether have node_to_cpumask])
        LB_LINUX_TRY_COMPILE([
                #include <linux/topology.h>
@@ -222,6 +269,7 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
+
 # 2.6.20 API change INIT_WORK use 2 args and not
 # store data inside
 AC_DEFUN([LIBCFS_3ARGS_INIT_WORK],
@@ -319,13 +367,30 @@ LB_LINUX_TRY_COMPILE([
 ],[
         AC_MSG_RESULT(yes)
         AC_DEFINE(HAVE_SCATTERLIST_SETPAGE, 1,
-                  [struct scatterlist has page member])
+                  [struct scatterlist has no page member])
 ],[
         AC_MSG_RESULT(NO)
 ])
 ])
 
-# 2.6.24 
+# 2.6.24-rc1 sg_init_table
+AC_DEFUN([LIBCFS_SCATTERLIST_INITTABLE],
+[AC_MSG_CHECKING([for sg_init_table])
+LB_LINUX_TRY_COMPILE([
+       #include <asm/types.h>
+       #include <linux/scatterlist.h>
+],[
+       sg_init_table(NULL,0);
+],[
+       AC_MSG_RESULT(yes)
+       AC_DEFINE(HAVE_SCATTERLIST_INITTABLE, 1,
+                 [scatterlist has sg_init_table])
+],[
+       AC_MSG_RESULT(NO)
+])
+])
+
+# 2.6.24
 AC_DEFUN([LIBCFS_NETWORK_NAMESPACE],
 [AC_MSG_CHECKING([for network stack has namespaces])
 LB_LINUX_TRY_COMPILE([
@@ -490,6 +555,25 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
+# LIBCFS_STRUCT_SHASH_ALG
+# struct shash_alg was introduced in 2.6.29
+#
+AC_DEFUN([LIBCFS_STRUCT_SHASH_ALG],
+[AC_MSG_CHECKING([if kernel has struct shash_alg])
+LB_LINUX_TRY_COMPILE([
+       #include <linux/err.h>
+       #include <crypto/internal/hash.h>
+],[
+       struct shash_alg foo;
+],[
+       AC_MSG_RESULT([yes])
+       AC_DEFINE(HAVE_STRUCT_SHASH_ALG, 1, [kernel has struct shash_alg])
+],[
+       AC_MSG_RESULT([no])
+])
+])
+
+
 #
 # LIBCFS_FUNC_UNSHARE_FS_STRUCT
 #
@@ -712,6 +796,7 @@ LIBCFS_U64_LONG_LONG_LINUX
 # 2.6.18
 LIBCFS_TASKLIST_LOCK
 LIBCFS_HAVE_IS_COMPAT_TASK
+LIBCFS_DIGEST_SETKEY_FLAGS
 # 2.6.19
 LIBCFS_KMEM_CACHE_DESTROY_INT
 # 2.6.20
@@ -724,6 +809,7 @@ LC_REGISTER_SHRINKER
 # 2.6.24
 LIBCFS_SYSCTL_UNNUMBERED
 LIBCFS_SCATTERLIST_SETPAGE
+LIBCFS_SCATTERLIST_INITTABLE
 LIBCFS_NETWORK_NAMESPACE
 LIBCFS_FUNC_DUMP_TRACE
 # 2.6.26
@@ -735,6 +821,7 @@ LIBCFS_CPUMASK_SIZE
 # 2.6.29
 LIBCFS_STRUCT_CRED_IN_TASK
 LIBCFS_CPU_TOPOLOGY
+LIBCFS_STRUCT_SHASH_ALG
 # 2.6.30
 LIBCFS_FUNC_UNSHARE_FS_STRUCT
 LIBCFS_SOCK_MAP_FD_2ARG
@@ -793,6 +880,12 @@ AC_CHECK_TYPE([spinlock_t],
 # lnet/utils/wirecheck.c
 AC_CHECK_FUNCS([strnlen])
 
+# lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcpy])
+
+# libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
+AC_CHECK_FUNCS([strlcat])
+
 AC_CHECK_TYPE([umode_t],
        [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
        [],
@@ -851,6 +944,7 @@ AC_COMPILE_IFELSE([
                __u64 *data2 = NULL;
 
                data1 = data2;
+               data2 = data1;
                return 0;
        }
 ],[