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])
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);])
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
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