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Linux 3.6 compat, iops->create()

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As of Linux commit ebfc3b49a7ac25920cb5be5445f602e51d2ea559 the
struct nameidata is no longer passed to iops->create.  Instead
only the result of (inamedata->flags & LOOKUP_EXCL) is passed.

ZFS like almost all Linux fileystems never made use of this so
only the prototype needs to be wrapped for compatibility.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #873
This commit is contained in:
Yuxuan Shui
2012-10-12 23:20:58 +08:00
committed by Brian Behlendorf
parent 8f195a908f
commit 558ef6d080
3 changed files with 32 additions and 0 deletions
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config/kernel-create-nameidata.m4
+26
View File
@@ -0,0 +1,26 @@
dnl #
dnl # 3.6 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CREATE_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->create() takes struct nameidata])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
#ifdef HAVE_MKDIR_UMODE_T
int (*inode_create) (struct inode *,struct dentry *,
umode_t, struct nameidata *) = NULL;
#else
int (*inode_create) (struct inode *,struct dentry *,
int, struct nameidata *) = NULL;
#endif
struct inode_operations iops __attribute__ ((unused)) = {
.create = inode_create,
};
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CREATE_NAMEIDATA, 1,
[iops->create() operation takes nameidata])
],[
AC_MSG_RESULT(no)
])
])
config/kernel.m4
+1
View File
@@ -50,6 +50,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_FREE_CACHED_OBJECTS
ZFS_AC_KERNEL_FALLOCATE
ZFS_AC_KERNEL_LOOKUP_NAMEIDATA
ZFS_AC_KERNEL_CREATE_NAMEIDATA
ZFS_AC_KERNEL_TRUNCATE_RANGE
ZFS_AC_KERNEL_CREATE_UMODE_T
ZFS_AC_KERNEL_AUTOMOUNT