venus: fix memory leak

[openafs.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index f215319..0a90e16 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -947,6 +947,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_STRUCT([file_operations], [sendfile], [fs.h])
                 AC_CHECK_LINUX_STRUCT([file_system_type], [mount], [fs.h])
                 AC_CHECK_LINUX_STRUCT([inode_operations], [truncate], [fs.h])
+                AC_CHECK_LINUX_STRUCT([inode_operations], [get_link], [fs.h])
                 AC_CHECK_LINUX_STRUCT([key], [payload.value], [key.h])
                 AC_CHECK_LINUX_STRUCT([key_type], [instantiate_prep], [key-type.h])
                 AC_CHECK_LINUX_STRUCT([key_type], [match_preparse], [key-type.h])
@@ -1047,6 +1048,9 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_FUNC([page_follow_link],
                                     [#include <linux/fs.h>],
                                     [page_follow_link(0,0);])
+                AC_CHECK_LINUX_FUNC([page_get_link],
+                                    [#include <linux/fs.h>],
+                                    [page_get_link(0,0,0);])
                 AC_CHECK_LINUX_FUNC([page_offset],
                                     [#include <linux/pagemap.h>],
                                     [page_offset(NULL);])
@@ -1094,6 +1098,9 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 AC_CHECK_LINUX_FUNC([inode_nohighmem],
                                     [#include <linux/fs.h>],
                                     [inode_nohighmem(NULL);])
+                AC_CHECK_LINUX_FUNC([inode_lock],
+                                    [#include <linux/fs.h>],
+                                    [inode_lock(NULL);])
 
                 dnl Consequences - things which get set as a result of the
                 dnl                above tests
@@ -1224,11 +1231,15 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
                 if test -f "$LINUX_KERNEL_PATH/include/linux/mm_inline.h"; then
                  AC_DEFINE(HAVE_MM_INLINE_H, 1, [define if you have mm_inline.h header file])
                 fi
-                if test "x$ac_cv_linux_kernel_page_follow_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
+                if test "x$ac_cv_linux_func_page_get_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
                  AC_DEFINE(USABLE_KERNEL_PAGE_SYMLINK_CACHE, 1, [define if your kernel has a usable symlink cache API])
                 else
                  AC_MSG_WARN([your kernel does not have a usable symlink cache API])
                 fi
+                if test "x$ac_cv_linux_func_page_get_link" != "xyes" -a "x$ac_cv_linux_struct_inode_operations_has_get_link" = "xyes"; then
+                       AC_MSG_ERROR([Your kernel does not use follow_link - not supported without symlink cache API])
+                       exit 1
+                fi
                 :
                fi
                if test "x$enable_linux_d_splice_alias_extra_iput" = xyes; then