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Diffstat (limited to 'config/kernel-dentry-alias.m4')
| -rw-r--r-- | config/kernel-dentry-alias.m4 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/config/kernel-dentry-alias.m4 b/config/kernel-dentry-alias.m4 new file mode 100644 index 000000000000..f0ddb8d010b0 --- /dev/null +++ b/config/kernel-dentry-alias.m4 @@ -0,0 +1,30 @@ +dnl # +dnl # 3.18 API change +dnl # Dentry aliases are in d_u struct dentry member +dnl # +AC_DEFUN([ZFS_AC_KERNEL_SRC_DENTRY_ALIAS_D_U], [ + ZFS_LINUX_TEST_SRC([dentry_alias_d_u], [ + #include <linux/fs.h> + #include <linux/dcache.h> + #include <linux/list.h> + ], [ + struct inode *inode __attribute__ ((unused)) = NULL; + struct dentry *dentry __attribute__ ((unused)) = NULL; + hlist_for_each_entry(dentry, &inode->i_dentry, + d_u.d_alias) { + d_drop(dentry); + } + ]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_DENTRY_ALIAS_D_U], [ + AC_MSG_CHECKING([whether dentry aliases are in d_u member]) + ZFS_LINUX_TEST_RESULT([dentry_alias_d_u], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_DENTRY_D_U_ALIASES, 1, + [dentry aliases are in d_u member]) + ],[ + AC_MSG_RESULT(no) + ]) +]) + |