diff options
Diffstat (limited to 'config/kernel-xattr-handler.m4')
| -rw-r--r-- | config/kernel-xattr-handler.m4 | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/config/kernel-xattr-handler.m4 b/config/kernel-xattr-handler.m4 index 943f9033c..2ba2fcbcd 100644 --- a/config/kernel-xattr-handler.m4 +++ b/config/kernel-xattr-handler.m4 @@ -84,3 +84,72 @@ AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_SET], [ AC_MSG_RESULT(no) ]) ]) + +dnl # +dnl # 2.6.33 API change, +dnl # The xattr_hander->list() callback was changed to take a dentry +dnl # instead of an inode, and a handler_flags argument was added. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_LIST], [ + AC_MSG_CHECKING([whether xattr_handler->list() wants dentry]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/xattr.h> + + size_t list(struct dentry *dentry, char *list, size_t list_size, + const char *name, size_t name_len, int handler_flags) + { return 0; } + static const struct xattr_handler + xops __attribute__ ((unused)) = { + .list = list, + }; + ],[ + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_DENTRY_XATTR_LIST, 1, + [xattr_handler->list() wants dentry]) + ],[ + AC_MSG_RESULT(no) + ]) +]) + +dnl # +dnl # 3.7 API change, +dnl # The posix_acl_{from,to}_xattr functions gained a new +dnl # parameter: user_ns +dnl # +AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_FROM_XATTR_USERNS], [ + AC_MSG_CHECKING([whether posix_acl_from_xattr() needs user_ns]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/cred.h> + #include <linux/fs.h> + #include <linux/posix_acl_xattr.h> + ],[ + posix_acl_from_xattr(&init_user_ns, NULL, 0); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_POSIX_ACL_FROM_XATTR_USERNS, 1, + [posix_acl_from_xattr() needs user_ns]) + ],[ + AC_MSG_RESULT(no) + ]) +]) + +dnl # +dnl # 2.6.39 API change, +dnl # The is_owner_or_cap() macro was replaced by inode_owner_or_capable(), +dnl # this is used for permission checks in the xattr call paths. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [ + AC_MSG_CHECKING([whether inode_owner_or_capable() exists]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/fs.h> + ],[ + inode_owner_or_capable(NULL); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1, + [inode_owner_or_capable() exists]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |