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authorYuxuan Shui <[email protected]>2012-10-12 22:41:06 +0800
committerBrian Behlendorf <[email protected]>2012-10-14 13:06:54 -0700
commit8f195a908ffaa8faf8f4c8a0e701e44ae3859e33 (patch)
tree48ade7ec19cb9689b2d7c5e508626cd29df09272 /config
parent3c203610756f98f275c7c9f731d67a38b1111509 (diff)
Linux 3.6 compat, iops->lookup()
As of Linux commit 00cd8dd3bf95f2cc8435b4cac01d9995635c6d0b the struct nameidata is no longer passed to iops->lookup. Instead only the inamedata->flags are 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 <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #873
Diffstat (limited to 'config')
-rw-r--r--config/kernel-lookup-nameidata.m421
-rw-r--r--config/kernel.m41
2 files changed, 22 insertions, 0 deletions
diff --git a/config/kernel-lookup-nameidata.m4 b/config/kernel-lookup-nameidata.m4
new file mode 100644
index 000000000..5e30be433
--- /dev/null
+++ b/config/kernel-lookup-nameidata.m4
@@ -0,0 +1,21 @@
+dnl #
+dnl # 3.6 API change
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_NAMEIDATA], [
+ AC_MSG_CHECKING([whether iops->lookup() takes struct nameidata])
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+ ],[
+ struct dentry * (*inode_lookup) (struct inode *,struct dentry *,
+ struct nameidata *) = NULL;
+ struct inode_operations iops __attribute__ ((unused)) = {
+ .lookup = inode_lookup,
+ };
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_LOOKUP_NAMEIDATA, 1,
+ [iops->lookup() operation takes nameidata])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
diff --git a/config/kernel.m4 b/config/kernel.m4
index 3a144a337..8d8cd6b48 100644
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -49,6 +49,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_NR_CACHED_OBJECTS
ZFS_AC_KERNEL_FREE_CACHED_OBJECTS
ZFS_AC_KERNEL_FALLOCATE
+ ZFS_AC_KERNEL_LOOKUP_NAMEIDATA
ZFS_AC_KERNEL_TRUNCATE_RANGE
ZFS_AC_KERNEL_CREATE_UMODE_T
ZFS_AC_KERNEL_AUTOMOUNT