aboutsummaryrefslogtreecommitdiffstats
path: root/config/kernel-sget-args.m4
diff options
context:
space:
mode:
authorYuxuan Shui <[email protected]>2012-10-12 21:40:53 +0800
committerBrian Behlendorf <[email protected]>2012-10-14 13:06:48 -0700
commit3c203610756f98f275c7c9f731d67a38b1111509 (patch)
treeb174c474d8947251ed09268a768b5e39c4addc43 /config/kernel-sget-args.m4
parentaf26c4d4ab545767456d8c21ed48e9e01ce6a3e7 (diff)
Linux 3.6 compat, sget()
As of Linux commit 9249e17fe094d853d1ef7475dd559a2cc7e23d42 the mount flags are now passed to sget() so they can be used when initializing a new superblock. ZFS never uses sget() in this fashion so we can simply pass a zero and add a zpl_sget() compatibility wrapper. Signed-off-by: Yuxuan Shui <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #873
Diffstat (limited to 'config/kernel-sget-args.m4')
-rw-r--r--config/kernel-sget-args.m423
1 files changed, 23 insertions, 0 deletions
diff --git a/config/kernel-sget-args.m4 b/config/kernel-sget-args.m4
new file mode 100644
index 000000000..9d1745925
--- /dev/null
+++ b/config/kernel-sget-args.m4
@@ -0,0 +1,23 @@
+dnl #
+dnl # 3.6 API change,
+dnl # 'sget' now takes the mount flags as an argument.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_5ARG_SGET],
+ [AC_MSG_CHECKING([whether sget() wants 5 args])
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+ ],[
+ struct file_system_type *type = NULL;
+ int (*test)(struct super_block *,void *) = NULL;
+ int (*set)(struct super_block *,void *) = NULL;
+ int flags = 0;
+ void *data = NULL;
+ (void) sget(type, test, set, flags, data);
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_5ARG_SGET, 1, [sget() wants 5 args])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
+