[mirror_zfs.git] / config / kernel-inode-getattr.m4

AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
	dnl #
	dnl # Linux 6.3 API
	dnl # The first arg of getattr I/O operations handler type
	dnl # is changed to struct mnt_idmap*
	dnl #
	ZFS_LINUX_TEST_SRC([inode_operations_getattr_mnt_idmap], [
		#include <linux/fs.h>

		static int test_getattr(
		    struct mnt_idmap *idmap,
		    const struct path *p, struct kstat *k,
		    u32 request_mask, unsigned int query_flags)
		    { return 0; }

		static const struct inode_operations
		    iops __attribute__ ((unused)) = {
			.getattr = test_getattr,
		};
	],[])

	dnl #
	dnl # Linux 5.12 API
	dnl # The getattr I/O operations handler type was extended to require
	dnl # a struct user_namespace* as its first arg, to support idmapped
	dnl # mounts.
	dnl #
	ZFS_LINUX_TEST_SRC([inode_operations_getattr_userns], [
		#include <linux/fs.h>

		static int test_getattr(
			struct user_namespace *userns,
		    const struct path *p, struct kstat *k,
		    u32 request_mask, unsigned int query_flags)
		    { return 0; }

		static const struct inode_operations
		    iops __attribute__ ((unused)) = {
			.getattr = test_getattr,
		};
	],[])

	dnl #
	dnl # Linux 4.11 API
	dnl # See torvalds/linux@a528d35
	dnl #
	ZFS_LINUX_TEST_SRC([inode_operations_getattr_path], [
		#include <linux/fs.h>

		static int test_getattr(
		    const struct path *p, struct kstat *k,
		    u32 request_mask, unsigned int query_flags)
		    { return 0; }

		static const struct inode_operations
		    iops __attribute__ ((unused)) = {
			.getattr = test_getattr,
		};
	],[])

	ZFS_LINUX_TEST_SRC([inode_operations_getattr_vfsmount], [
		#include <linux/fs.h>

		static int test_getattr(
		    struct vfsmount *mnt, struct dentry *d,
		    struct kstat *k)
		    { return 0; }

		static const struct inode_operations
		    iops __attribute__ ((unused)) = {
			.getattr = test_getattr,
		};
	],[])
])

AC_DEFUN([ZFS_AC_KERNEL_INODE_GETATTR], [
	dnl #
	dnl # Kernel 6.3 test
	dnl #
	AC_MSG_CHECKING([whether iops->getattr() takes mnt_idmap])
	ZFS_LINUX_TEST_RESULT([inode_operations_getattr_mnt_idmap], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_IDMAP_IOPS_GETATTR, 1,
		    [iops->getattr() takes struct mnt_idmap*])
	],[
		AC_MSG_RESULT(no)
		dnl #
		dnl # Kernel 5.12 test
		dnl #
		AC_MSG_CHECKING([whether iops->getattr() takes user_namespace])
		ZFS_LINUX_TEST_RESULT([inode_operations_getattr_userns], [
			AC_MSG_RESULT(yes)
			AC_DEFINE(HAVE_USERNS_IOPS_GETATTR, 1,
			    [iops->getattr() takes struct user_namespace*])
		],[
			AC_MSG_RESULT(no)

			dnl #
			dnl # Kernel 4.11 test
			dnl #
			AC_MSG_CHECKING([whether iops->getattr() takes a path])
			ZFS_LINUX_TEST_RESULT([inode_operations_getattr_path], [
				AC_MSG_RESULT(yes)
				AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
					[iops->getattr() takes a path])
			],[
				AC_MSG_RESULT(no)

				dnl #
				dnl # Kernel < 4.11 test
				dnl #
				AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
				ZFS_LINUX_TEST_RESULT([inode_operations_getattr_vfsmount], [
					AC_MSG_RESULT(yes)
					AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
						[iops->getattr() takes a vfsmount])
				],[
					AC_MSG_RESULT(no)
				])
			])
		])
	])
])
Commit	Line	Data
608f8749	1	AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
d4dc53da YY	2	dnl #
	3	dnl # Linux 6.3 API
	4	dnl # The first arg of getattr I/O operations handler type
	5	dnl # is changed to struct mnt_idmap*
	6	dnl #
	7	ZFS_LINUX_TEST_SRC([inode_operations_getattr_mnt_idmap], [
	8	#include <linux/fs.h>
	9
a41d0b29	10	static int test_getattr(
d4dc53da YY	11	struct mnt_idmap *idmap,
	12	const struct path p, struct kstat k,
	13	u32 request_mask, unsigned int query_flags)
	14	{ return 0; }
	15
	16	static const struct inode_operations
	17	iops __attribute__ ((unused)) = {
	18	.getattr = test_getattr,
	19	};
	20	],[])
	21
e2a82961 CK	22	dnl #
	23	dnl # Linux 5.12 API
	24	dnl # The getattr I/O operations handler type was extended to require
	25	dnl # a struct user_namespace* as its first arg, to support idmapped
	26	dnl # mounts.
	27	dnl #
	28	ZFS_LINUX_TEST_SRC([inode_operations_getattr_userns], [
	29	#include <linux/fs.h>
	30
a41d0b29	31	static int test_getattr(
e2a82961 CK	32	struct user_namespace *userns,
	33	const struct path p, struct kstat k,
	34	u32 request_mask, unsigned int query_flags)
	35	{ return 0; }
	36
	37	static const struct inode_operations
	38	iops __attribute__ ((unused)) = {
	39	.getattr = test_getattr,
	40	};
	41	],[])
	42
	43	dnl #
	44	dnl # Linux 4.11 API
	45	dnl # See torvalds/linux@a528d35
	46	dnl #
608f8749	47	ZFS_LINUX_TEST_SRC([inode_operations_getattr_path], [
a3478c07 OF	48	#include <linux/fs.h>
a3478c07 OF	49
a41d0b29	50	static int test_getattr(
a3478c07 OF	51	const struct path p, struct kstat k,
	52	u32 request_mask, unsigned int query_flags)
	53	{ return 0; }
	54
	55	static const struct inode_operations
	56	iops __attribute__ ((unused)) = {
	57	.getattr = test_getattr,
	58	};
608f8749	59	],[])
a3478c07	60
608f8749	61	ZFS_LINUX_TEST_SRC([inode_operations_getattr_vfsmount], [
a3478c07 OF	62	#include <linux/fs.h>
a3478c07 OF	63
a41d0b29	64	static int test_getattr(
a3478c07 OF	65	struct vfsmount mnt, struct dentry d,
	66	struct kstat *k)
	67	{ return 0; }
	68
	69	static const struct inode_operations
	70	iops __attribute__ ((unused)) = {
	71	.getattr = test_getattr,
	72	};
608f8749 BB	73	],[])
	74	])
	75
	76	AC_DEFUN([ZFS_AC_KERNEL_INODE_GETATTR], [
e2a82961	77	dnl #
d4dc53da	78	dnl # Kernel 6.3 test
e2a82961	79	dnl #
d4dc53da YY	80	AC_MSG_CHECKING([whether iops->getattr() takes mnt_idmap])
d4dc53da YY	81	ZFS_LINUX_TEST_RESULT([inode_operations_getattr_mnt_idmap], [
a3478c07	82	AC_MSG_RESULT(yes)
d4dc53da YY	83	AC_DEFINE(HAVE_IDMAP_IOPS_GETATTR, 1,
d4dc53da YY	84	[iops->getattr() takes struct mnt_idmap*])
a3478c07 OF	85	],[
a3478c07 OF	86	AC_MSG_RESULT(no)
e2a82961	87	dnl #
d4dc53da	88	dnl # Kernel 5.12 test
e2a82961	89	dnl #
d4dc53da YY	90	AC_MSG_CHECKING([whether iops->getattr() takes user_namespace])
d4dc53da YY	91	ZFS_LINUX_TEST_RESULT([inode_operations_getattr_userns], [
608f8749	92	AC_MSG_RESULT(yes)
d4dc53da YY	93	AC_DEFINE(HAVE_USERNS_IOPS_GETATTR, 1,
d4dc53da YY	94	[iops->getattr() takes struct user_namespace*])
608f8749 BB	95	],[
608f8749 BB	96	AC_MSG_RESULT(no)
e2a82961 CK	97
e2a82961 CK	98	dnl #
d4dc53da	99	dnl # Kernel 4.11 test
e2a82961	100	dnl #
d4dc53da YY	101	AC_MSG_CHECKING([whether iops->getattr() takes a path])
d4dc53da YY	102	ZFS_LINUX_TEST_RESULT([inode_operations_getattr_path], [
e2a82961	103	AC_MSG_RESULT(yes)
d4dc53da YY	104	AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
d4dc53da YY	105	[iops->getattr() takes a path])
e2a82961 CK	106	],[
e2a82961 CK	107	AC_MSG_RESULT(no)
d4dc53da YY	108
	109	dnl #
	110	dnl # Kernel < 4.11 test
	111	dnl #
	112	AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
	113	ZFS_LINUX_TEST_RESULT([inode_operations_getattr_vfsmount], [
	114	AC_MSG_RESULT(yes)
	115	AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
	116	[iops->getattr() takes a vfsmount])
	117	],[
	118	AC_MSG_RESULT(no)
	119	])
e2a82961	120	])
608f8749 BB	121	])
608f8749 BB	122	])
a3478c07	123	])