+
+AC_DEFUN([LINUX_AIO_NONVECTOR],
+ [AC_CHECK_LINUX_BUILD([for non-vectorized aio kernel functions],
+ [ac_cv_linux_aio_nonvector],
+ [#include <linux/fs.h>],
+ [extern ssize_t
+ generic_file_aio_read(struct kiocb *, char __user *,
+ size_t, loff_t);],
+ [LINUX_HAS_NONVECTOR_AIO],
+ [define if kernel functions like generic_file_aio_read use
+ non-vectorized i/o],
+ [])
+ ])
+
AC_DEFUN([LINUX_EXPORTS_TASKLIST_LOCK], [
AC_CHECK_LINUX_BUILD([for exported tasklist_lock],
[ac_cv_linux_exports_tasklist_lock],
read_lock(&tasklist_lock);
],
[EXPORTED_TASKLIST_LOCK],
- [define if tasklist_lock exported])
-])
-
-AC_DEFUN([LINUX_COMPLETION_H_EXISTS], [
- AC_CHECK_LINUX_BUILD([for linux/completion.h],
- [ac_cv_linux_completion_h_exists],
-[#include <linux/version.h>
-#include <linux/completion.h>],
-[struct completion _c;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,8)
-lose
-#endif],
- [HAVE_LINUX_COMPLETION_H]
- [Define if your kernel has a usable linux/completion.h])
+ [define if tasklist_lock exported],
+ [])
])
[extern struct mm_struct init_mm;],
[void *address = &init_mm; printk("%p\n", address);],
[EXPORTED_INIT_MM],
- [define if your kernel exports init_mm])
+ [define if your kernel exports init_mm],
+ [])
])
#error kallsyms_address_to_symbol not exported
#endif],
[EXPORTED_KALLSYMS_ADDRESS],
- [define if your linux kernel exports kallsyms address])
+ [define if your linux kernel exports kallsyms address],
+ [])
])
#error kallsyms_symbol_to_address not exported
#endif],
[EXPORTED_KALLSYMS_SYMBOL],
- [define if your linux kernel exports kallsyms])
+ [define if your linux kernel exports kallsyms],
+ [])
])
#error sys_call_table not exported
#endif],
[EXPORTED_SYS_CALL_TABLE],
- [define if your linux kernel exports sys_call_table])
+ [define if your linux kernel exports sys_call_table],
+ [])
])
#error ia32_sys_call_table not exported
#endif],
[EXPORTED_IA32_SYS_CALL_TABLE],
- [define if your linux kernel exports ia32_sys_call_table])
+ [define if your linux kernel exports ia32_sys_call_table],
+ [])
])
[extern asmlinkage long sys_chdir(void) __attribute__((weak));],
[void *address = &sys_chdir; printk("%p\n", address);],
[EXPORTED_SYS_CHDIR],
- [define if your linux kernel exports sys_chdir])
+ [define if your linux kernel exports sys_chdir],
+ [])
])
[extern asmlinkage long sys_open(void) __attribute__((weak));],
[void *address = &sys_open; printk("%p\n", address);],
[EXPORTED_SYS_OPEN],
- [define if your linux kernel exports sys_open])
+ [define if your linux kernel exports sys_open],
+ [])
])
AC_DEFUN([LINUX_RECALC_SIGPENDING_ARG_TYPE], [
AC_CHECK_LINUX_BUILD([for recalc_sigpending arg type],
[ac_cv_linux_func_recalc_sigpending_takes_void],
- [#include <linux/sched.h>],
+[#include <linux/sched.h>
+#ifdef HAVE_LINUX_SCHED_SIGNAL_H
+#include <linux/sched/signal.h>
+#endif],
[recalc_sigpending();],
[RECALC_SIGPENDING_TAKES_VOID],
- [define if your recalc_sigpending takes void])
+ [define if your recalc_sigpending takes void],
+ [])
])
AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM], [
AC_CHECK_LINUX_BUILD([for signal->rlim in struct task_struct],
[ac_cv_linux_sched_struct_task_struct_has_signal_rlim],
- [#include <linux/sched.h>],
+[#include <linux/sched.h>
+#ifdef HAVE_LINUX_SCHED_SIGNAL_H
+#include <linux/sched/signal.h>
+#endif],
[struct task_struct _tsk; printk("%d\n", _tsk.signal->rlim);],
[STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM],
- [define if your struct task_struct has signal->rlim])
+ [define if your struct task_struct has signal->rlim],
+ [])
])
[#include <linux/fs.h>],
[posix_lock_file(0,0,0);],
[POSIX_LOCK_FILE_WAIT_ARG],
- [define if your kernel uses 3 arguments for posix_lock_file])
+ [define if your kernel uses 3 arguments for posix_lock_file],
+ [])
+])
+
+AC_DEFUN([LINUX_KERNEL_PAGEVEC_INIT_COLD_ARG], [
+ AC_CHECK_LINUX_BUILD([for 2nd argument in pagevec_init found in pre-4.15 kernels],
+ [ac_cv_linux_kernel_pagevec_init_cold_arg],
+ [#include <linux/pagevec.h>],
+ [pagevec_init(0,0);],
+ [PAGEVEC_INIT_COLD_ARG],
+ [define if your kernel uses 2 arguments for pagevec_init],
+ [])
])
AC_DEFUN([LINUX_KERNEL_SOCK_CREATE], [
[#include <linux/net.h>],
[sock_create(0,0,0,0,0);],
[LINUX_KERNEL_SOCK_CREATE_V],
- [define if your linux kernel uses 5 arguments for sock_create])
+ [define if your linux kernel uses 5 arguments for sock_create],
+ [])
])
int i;
i = inode_setattr(&_inode, &_iattr);],
[INODE_SETATTR_NOT_VOID],
- [define if your setattr return return non-void])
+ [define if your setattr return return non-void],
+ [])
+])
+
+AC_DEFUN([LINUX_IATTR_64BIT_TIME], [
+ AC_CHECK_LINUX_BUILD([whether struct iattr->ia_ctime takes struct timespec64 or 32-bit struct timespec],
+ [ac_cv_linux_func_iattr_ctime_takes_timespec64],
+ [#include <linux/fs.h>
+ #include <linux/timekeeping.h>],
+ [struct iattr _attrs;
+ #if defined(HAVE_LINUX_KTIME_GET_COARSE_REAL_TS64)
+ ktime_get_coarse_real_ts64(&_attrs.ia_ctime);
+ #else
+ _attrs.ia_ctime = current_kernel_time64();
+ #endif
+ ],
+ [IATTR_TAKES_64BIT_TIME],
+ [define if struct iattr->ia_ctime takes struct timespec64],
+ [])
])
-
-
AC_DEFUN([LINUX_AOP_WRITEBACK_CONTROL], [
AC_CHECK_LINUX_BUILD([whether aop.writepage takes a writeback_control],
[ac_cv_linux_func_a_writepage_takes_writeback_control],
struct writeback_control _writeback_control;
(void)_aops.writepage(&_page, &_writeback_control);],
[AOP_WRITEPAGE_TAKES_WRITEBACK_CONTROL],
- [define if aops.writepage takes a struct writeback_control])
+ [define if aops.writepage takes a struct writeback_control],
+ [])
])
#endif],
[refrigerator(PF_FREEZE);],
[LINUX_REFRIGERATOR_TAKES_PF_FREEZE],
- [define if your refrigerator takes PF_FREEZE])
+ [define if your refrigerator takes PF_FREEZE],
+ [])
])
(void)_inode.i_op->create(&_inode, &_dentry, 0, &_nameidata);],
[IOP_CREATE_TAKES_NAMEIDATA],
- [define if your iops.create takes a nameidata argument])
+ [define if your iops.create takes a nameidata argument],
+ [])
])
struct nameidata _nameidata;
(void)_inode.i_op->lookup(&_inode, &_dentry, &_nameidata);],
[IOP_LOOKUP_TAKES_NAMEIDATA],
- [define if your iops.lookup takes a nameidata argument])
+ [define if your iops.lookup takes a nameidata argument],
+ [])
])
[#include <linux/fs.h>
#include <linux/namei.h>],
[struct inode _inode;
-struct dentry _dentry;
struct nameidata _nameidata;
(void)_inode.i_op->permission(&_inode, 0, &_nameidata);],
[IOP_PERMISSION_TAKES_NAMEIDATA],
- [define if your iops.permission takes a nameidata argument])
+ [define if your iops.permission takes a nameidata argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_IOP_I_PERMISSION_TAKES_FLAGS], [
+ AC_CHECK_LINUX_BUILD([whether inode_operations.permission takes flags],
+ [ac_cv_linux_func_i_permission_takes_flags],
+ [#include <linux/fs.h>],
+ [struct inode _inode = {0};
+ unsigned int flags = 0;
+ (void)_inode.i_op->permission(&_inode, 0, flags);],
+ [IOP_PERMISSION_TAKES_FLAGS],
+ [define if your iops.permission takes a flags argument],
+ [-Werror])
])
#include <linux/namei.h>],
[struct inode _inode;
struct dentry _dentry;
-struct nameidata _nameidata;
+struct nameidata *_nameidata;
void *cookie;
-(void)_inode.i_op->put_link(&_dentry, &_nameidata, cookie);],
+(void)_inode.i_op->put_link(&_dentry, _nameidata, cookie);],
[IOP_PUT_LINK_TAKES_COOKIE],
- [define if your iops.put_link takes a cookie])
+ [define if your iops.put_link takes a cookie],
+ [])
])
AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA], [
AC_CHECK_LINUX_BUILD([whether dentry_operations.d_revalidate takes a nameidata],
[ac_cv_linux_func_d_revalidate_takes_nameidata],
-[#include <linux/fs.h>
-#include <linux/namei.h>],
-[struct dentry _dentry;
-struct nameidata _nameidata;
-(void)_dentry.d_op->d_revalidate(&_dentry, &_nameidata);],
+ [#include <linux/fs.h>
+ #include <linux/namei.h>
+ static int reval(struct dentry *d, struct nameidata *nd) { return 0; }
+ struct dentry_operations dops;],
+ [dops.d_revalidate = reval;],
[DOP_REVALIDATE_TAKES_NAMEIDATA],
- [define if your dops.d_revalidate takes a nameidata argument])
+ [define if your dops.d_revalidate takes a nameidata argument],
+ [-Werror])
])
[#include <linux/fs.h>],
[get_sb_nodev(0,0,0,0,0);],
[GET_SB_HAS_STRUCT_VFSMOUNT],
- [define if your get_sb_nodev needs a struct vfsmount argument])
+ [define if your get_sb_nodev needs a struct vfsmount argument],
+ [])
])
#include <linux/statfs.h>],
[extern int simple_statfs(struct dentry *, struct kstatfs *);],
[STATFS_TAKES_DENTRY],
- [define if your statfs takes a dentry argument])
+ [define if your statfs takes a dentry argument],
+ [])
])
#error rebuild your kernel with CONFIG_KEYS
#endif],
[LINUX_KEYRING_SUPPORT],
- [define if your kernel has keyring support])
+ [define if your kernel has keyring support],
+ [])
])
AC_DEFUN([LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK], [
- AC_CACHE_CHECK([if key_alloc() takes a struct task *],
- [ac_cv_key_alloc_needs_struct_task],
-[
- save_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$CPPFLAGS -Werror -Wno-pointer-arith"
- AC_TRY_KBUILD(
-[#include <linux/rwsem.h>
-#include <linux/key.h>
-],
-[struct task_struct *t=NULL;
-(void) key_alloc(NULL, NULL, 0, 0, t, 0, 0);],
- ac_cv_key_alloc_needs_struct_task=yes,
- ac_cv_key_alloc_needs_struct_task=no)
- CPPFLAGS="$save_CPPFLAGS"])
- AS_IF([test "x$ac_cv_key_alloc_needs_struct_task" = "xyes"],
- [AC_DEFINE([KEY_ALLOC_NEEDS_STRUCT_TASK], 1,
- [define if key_alloc takes a struct task *])])
+ AC_CHECK_LINUX_BUILD([if key_alloc() takes a struct task *],
+ [ac_cv_key_alloc_needs_struct_task],
+ [#include <linux/rwsem.h>
+ #include <linux/key.h> ],
+ [struct task_struct *t=NULL;
+ struct key k = {};
+ (void) key_alloc(NULL, NULL, k.uid, k.gid, t, 0, 0);],
+ [KEY_ALLOC_NEEDS_STRUCT_TASK],
+ [define if key_alloc takes a struct task *],
+ [-Werror -Wno-pointer-arith])
])
AC_DEFUN([LINUX_KEY_ALLOC_NEEDS_CRED], [
- AC_CACHE_CHECK([if key_alloc() takes credentials],
- [ac_cv_key_alloc_needs_cred],
-[
- save_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$CPPFLAGS -Werror -Wno-pointer-arith"
- AC_TRY_KBUILD(
-[#include <linux/rwsem.h>
-#include <linux/key.h>],
-[struct cred *c = NULL;
-(void) key_alloc(NULL, NULL, 0, 0, c, 0, 0);],
- ac_cv_key_alloc_needs_cred=yes,
- ac_cv_key_alloc_needs_cred=no)
- CPPFLAGS="$save_CPPFLAGS"])
- AS_IF([test "x$ac_cv_key_alloc_needs_cred" = "xyes"],
- [AC_DEFINE([KEY_ALLOC_NEEDS_CRED], 1,
- [define if key_alloc takes credentials])])
+ AC_CHECK_LINUX_BUILD([if key_alloc() takes credentials],
+ [ac_cv_key_alloc_needs_cred],
+ [#include <linux/rwsem.h>
+ #include <linux/key.h>],
+ [struct cred *c = NULL;
+ struct key k = {};
+ (void) key_alloc(NULL, NULL, k.uid, k.gid, c, 0, 0);],
+ [KEY_ALLOC_NEEDS_CRED],
+ [define if key_alloc takes credentials],
+ [-Werror -Wno-pointer-arith])
])
int *i;
INIT_WORK(w,f,i);],
[INIT_WORK_HAS_DATA],
- [define if INIT_WORK takes a data (3rd) argument])
+ [define if INIT_WORK takes a data (3rd) argument],
+ [])
])
AC_CHECK_LINUX_BUILD([whether register_sysctl_table has an insert_at_head argument],
[ac_cv_linux_register_sysctl_table_noflag],
[#include <linux/sysctl.h>],
- [ctl_table *t; register_sysctl_table (t);],
+ [struct ctl_table *t; register_sysctl_table (t);],
[REGISTER_SYSCTL_TABLE_NOFLAG],
- [define if register_sysctl_table has no insert_at head flag])
+ [define if register_sysctl_table has no insert_at head flag],
+ [])
])
fl_owner_t id;
(void)_inode.i_fop->flush(&_file, &id);],
[FOP_FLUSH_TAKES_FL_OWNER_T],
- [define if your fops.flush takes an fl_owner_t argument])
+ [define if your fops.flush takes an fl_owner_t argument],
+ [])
])
struct dentry _d;
(void)_inode.i_fop->fsync(&_file, &_d, 0);],
[FOP_FSYNC_TAKES_DENTRY],
- [define if your fops.fsync takes an dentry argument])
+ [define if your fops.fsync takes an dentry argument],
+ [])
+])
+
+
+int (*fsync) (struct file *, loff_t start, loff_t end, int datasync);
+
+AC_DEFUN([LINUX_FOP_F_FSYNC_TAKES_RANGE], [
+ AC_CHECK_LINUX_BUILD([whether file_operations.fsync takes a range],
+ [ac_cv_linux_func_f_fsync_takes_range],
+ [#include <linux/fs.h>],
+[struct inode _inode;
+struct file _file;
+loff_t start, end;
+(void)_inode.i_fop->fsync(&_file, start, end, 0);],
+ [FOP_FSYNC_TAKES_RANGE],
+ [define if your fops.fsync takes range arguments],
+ [])
])
[#include <linux/slab.h>],
[kmem_cache_t *k;],
[HAVE_KMEM_CACHE_T],
- [define if kmem_cache_t exists])
+ [define if kmem_cache_t exists],
+ [])
])
[#include <linux/slab.h>],
[kmem_cache_create(NULL, 0, 0, 0, NULL, NULL);],
[KMEM_CACHE_TAKES_DTOR],
- [define if kmem_cache_create takes a destructor argument])
+ [define if kmem_cache_create takes a destructor argument],
+ [])
])
AC_DEFUN([LINUX_KMEM_CACHE_CREATE_CTOR_TAKES_VOID],[
- AC_CACHE_CHECK([whether kmem_cache_create constructor takes a void pointer],
- [ac_cv_linux_kmem_cache_create_ctor_takes_void], [
- save_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$CPPFLAGS -Werror"
- AC_TRY_KBUILD([#include <linux/slab.h>],
- [void _ctor(void *v) { }; kmem_cache_create(NULL, 0, 0, 0, _ctor);],
- ac_cv_linux_kmem_cache_create_ctor_takes_void=yes,
- ac_cv_linux_kmem_cache_create_ctor_takes_void=no)
- CPPFLAGS="$save_CPPFLAGS"
- ])
- AS_IF([test "x$ac_cv_linux_kmem_cache_create_ctor_takes_void" = "xyes"],
- [AC_DEFINE([KMEM_CACHE_CTOR_TAKES_VOID], 1,
- [define if kmem_cache_create constructor takes a single void ptr])])
+ AC_CHECK_LINUX_BUILD([whether kmem_cache_create constructor takes a void pointer],
+ [ac_cv_linux_kmem_cache_create_ctor_takes_void],
+ [#include <linux/slab.h>],
+ [void _ctor(void *v) { }; kmem_cache_create(NULL, 0, 0, 0, _ctor);],
+ [KMEM_CACHE_CTOR_TAKES_VOID],
+ [define if kmem_cache_create constructor takes a single void ptr],
+ [-Werror])
])
_fop.splice_write(NULL, NULL, NULL, 0, 0);
_fop.splice_read(NULL, NULL, NULL, 0, 0);],
[STRUCT_FILE_OPERATIONS_HAS_SPLICE],
- [define if struct file_operations has splice functions])
+ [define if struct file_operations has splice functions],
+ [])
])
void (*)(struct kmem_cache *, void *));
return;],
[KMEM_CACHE_INIT],
- [define for new kmem_cache init function parameters])
+ [define for new kmem_cache init function parameters],
+ [])
])
[#include <linux/proc_fs.h>],
[struct proc_dir_entry *p = proc_root_fs;],
[EXPORTED_PROC_ROOT_FS],
- [define if proc_root_fs is exported])
+ [define if proc_root_fs is exported],
+ [])
])
AC_DEFUN([LINUX_D_PATH_TAKES_STRUCT_PATH], [
AC_CHECK_LINUX_BUILD([if d_path() takes a struct path argument],
[ac_cv_linux_d_path_takes_struct_path],
- [#include <linux/dcache.h>],
+ [#include <linux/fs.h>],
[struct path *p; d_path(p, NULL, 0);],
[D_PATH_TAKES_STRUCT_PATH],
- [define if d_path() takes a struct path argument])
+ [define if d_path() takes a struct path argument],
+ [])
])
[struct export_operations _eops;
_eops.fh_to_parent(NULL, NULL, 0, 0);],
[NEW_EXPORT_OPS],
- [define if kernel uses new export ops])
+ [define if kernel uses new export ops],
+ [])
])
struct file * file;
lock = posix_test_lock(file, lock);],
[POSIX_TEST_LOCK_RETURNS_CONFLICT],
- [define if posix_test_lock returns the conflicting lock])
+ [define if posix_test_lock returns the conflicting lock],
+ [])
])
struct file *file;
posix_test_lock(file, lock, lock);],
[POSIX_TEST_LOCK_CONFLICT_ARG],
- [define if posix_test_lock takes a conflict argument])
+ [define if posix_test_lock takes a conflict argument],
+ [])
])
],
[printk("%s", key_type_keyring.name);],
[EXPORTED_KEY_TYPE_KEYRING],
- [define if key_type_keyring is exported])
+ [define if key_type_keyring is exported],
+ [])
])
try_to_freeze();
#endif],
[HAVE_TRY_TO_FREEZE],
- [define if your kernel has the try_to_freeze function])
+ [define if your kernel has the try_to_freeze function],
+ [])
+])
+
+
+AC_DEFUN([LINUX_HAVE_DCACHE_LOCK], [
+ AC_CHECK_LINUX_BUILD([for dcache_lock],
+ [ac_cv_linux_have_dcache_lock],
+ [#include <linux/fs.h> ],
+ [printk("%p", &dcache_lock);],
+ [HAVE_DCACHE_LOCK],
+ [define if dcache_lock exists],
+ [])
+])
+
+
+AC_DEFUN([LINUX_D_COUNT_IS_INT], [
+ AC_CHECK_LINUX_BUILD([if dentry->d_count is an int],
+ [ac_cv_linux_d_count_int],
+ [#include <linux/fs.h> ],
+ [struct dentry _d;
+ dget(&_d);
+ _d.d_count = 1;],
+ [D_COUNT_INT],
+ [define if dentry->d_count is an int],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_DOP_D_DELETE_TAKES_CONST], [
+ AC_CHECK_LINUX_BUILD([whether dentry.d_op->d_delete takes a const argument],
+ [ac_cv_linux_dop_d_delete_takes_const],
+ [#include <linux/fs.h>
+ #include <linux/dcache.h>
+ static int _d_del(const struct dentry *de) { return 0; }
+ struct dentry_operations _d_ops;],
+ [_d_ops.d_delete = _d_del;],
+ [DOP_D_DELETE_TAKES_CONST],
+ [define if dentry.d_op->d_delete takes a const argument],
+ [-Werror])
+])
+
+AC_DEFUN([LINUX_IOP_GETATTR_TAKES_PATH_STRUCT], [
+ AC_CHECK_LINUX_BUILD([whether 4.11+ inode.i_op->getattr takes a struct path argument],
+ [ac_cv_linux_iop_getattr_takes_path_struct],
+ [#include <linux/fs.h>
+ int _getattr(const struct path *path, struct kstat *stat, u32 request_mask,
+ unsigned int sync_mode) {return 0;};
+ struct inode_operations _i_ops;],
+ [_i_ops.getattr = _getattr;],
+ [IOP_GETATTR_TAKES_PATH_STRUCT],
+ [define if 4.11+ inode.i_op->getattr takes a struct path argument],
+ [-Werror])
+])
+
+AC_DEFUN([LINUX_IOP_MKDIR_TAKES_UMODE_T], [
+ AC_CHECK_LINUX_BUILD([whether inode.i_op->mkdir takes a umode_t argument],
+ [ac_cv_linux_iop_mkdir_takes_umode_t],
+ [#include <linux/fs.h>
+ static int _mkdir(struct inode *i, struct dentry *d, umode_t m) { return 0; }
+ struct inode_operations _i_ops;],
+ [_i_ops.mkdir = _mkdir;],
+ [IOP_MKDIR_TAKES_UMODE_T],
+ [define if inode.i_op->mkdir takes a umode_t argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_IOP_CREATE_TAKES_UMODE_T], [
+ AC_CHECK_LINUX_BUILD([whether inode.i_op->create takes a umode_t argument],
+ [ac_cv_linux_iop_create_takes_umode_t],
+ [#include <linux/fs.h>],
+ [struct inode_operations _i_ops;
+ int _create(struct inode *i, struct dentry *d, umode_t m, struct nameidata *n)
+ {return 0;};
+ _i_ops.create = _create;],
+ [IOP_CREATE_TAKES_UMODE_T],
+ [define if inode.i_op->create takes a umode_t argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_EXPORT_OP_ENCODE_FH_TAKES_INODES], [
+ AC_CHECK_LINUX_BUILD([whether export operation encode_fh takes inode arguments],
+ [ac_cv_linux_export_op_encode_fh__takes_inodes],
+ [#include <linux/exportfs.h>
+ static int _encode_fh(struct inode *i, __u32 *fh, int *len, struct inode *p) { return 0; }
+ struct export_operations _exp_ops;],
+ [_exp_ops.encode_fh = _encode_fh;],
+ [EXPORT_OP_ENCODE_FH_TAKES_INODES],
+ [define if encode_fh export op takes inode arguments],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_KMAP_ATOMIC_TAKES_NO_KM_TYPE], [
+ AC_CHECK_LINUX_BUILD([whether kmap_atomic takes no km_type argument],
+ [ac_cv_linux_kma_atomic_takes_no_km_type],
+ [#include <linux/highmem.h>],
+ [struct page *p = NULL;
+ kmap_atomic(p);],
+ [KMAP_ATOMIC_TAKES_NO_KM_TYPE],
+ [define if kmap_atomic takes no km_type argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_DENTRY_OPEN_TAKES_PATH], [
+ AC_CHECK_LINUX_BUILD([whether dentry_open takes a path argument],
+ [ac_cv_linux_dentry_open_takes_path],
+ [#include <linux/fs.h>],
+ [struct path p;
+ dentry_open(&p, 0, NULL);],
+ [DENTRY_OPEN_TAKES_PATH],
+ [define if dentry_open takes a path argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_D_ALIAS_IS_HLIST], [
+ AC_CHECK_LINUX_BUILD([whether dentry->d_alias is an hlist],
+ [ac_cv_linux_d_alias_is_hlist],
+ [#include <linux/fs.h>],
+ [struct dentry *d = NULL;
+ struct hlist_node *hn = NULL;
+ #if defined(STRUCT_DENTRY_HAS_D_U_D_ALIAS)
+ d->d_u.d_alias = *hn;
+ #else
+ d->d_alias = *hn;
+ #endif],
+ [D_ALIAS_IS_HLIST],
+ [define if dentry->d_alias is an hlist],
+ [])
+])
+
+
+AC_DEFUN([LINUX_HLIST_ITERATOR_NO_NODE], [
+ AC_CHECK_LINUX_BUILD([whether hlist iterators don't need a node parameter],
+ [ac_cv_linux_hlist_takes_no_node],
+ [#include <linux/list.h>
+ #include <linux/fs.h>],
+ [struct dentry *d = NULL, *cur;
+ struct inode *ip;
+ #if defined(STRUCT_DENTRY_HAS_D_U_D_ALIAS)
+ # define d_alias d_u.d_alias
+ #endif
+ hlist_for_each_entry(cur, &ip->i_dentry, d_alias) { }
+ ],
+ [HLIST_ITERATOR_NO_NODE],
+ [define if hlist iterators don't need a node parameter],
+ [])
+])
+
+
+AC_DEFUN([LINUX_IOP_I_CREATE_TAKES_BOOL], [
+ AC_CHECK_LINUX_BUILD([whether inode_operations.create takes a bool],
+ [ac_cv_linux_func_i_create_takes_bool],
+ [#include <linux/fs.h>
+ #include <linux/namei.h>],
+ [struct inode _inode = {};
+ struct dentry _dentry;
+ bool b = true;
+ (void)_inode.i_op->create(&_inode, &_dentry, 0, b);],
+ [IOP_CREATE_TAKES_BOOL],
+ [define if your iops.create takes a bool argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_UNSIGNED], [
+ AC_CHECK_LINUX_BUILD([whether dentry_operations.d_revalidate takes an unsigned int],
+ [ac_cv_linux_func_d_revalidate_takes_unsigned],
+ [#include <linux/fs.h>
+ #include <linux/namei.h>
+ static int reval(struct dentry *d, unsigned int i) { return 0; }
+ struct dentry_operations _d_ops;],
+ [_d_ops.d_revalidate = reval;],
+ [DOP_REVALIDATE_TAKES_UNSIGNED],
+ [define if your dops.d_revalidate takes an unsigned int argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_IOP_LOOKUP_TAKES_UNSIGNED], [
+ AC_CHECK_LINUX_BUILD([whether inode operation lookup takes an unsigned int],
+ [ac_cv_linux_func_lookup_takes_unsigned],
+ [#include <linux/fs.h>
+ #include <linux/namei.h>
+ static struct dentry *look(struct inode *i, struct dentry *d, unsigned int j) { return NULL; }
+ struct inode_operations _i_ops;],
+ [_i_ops.lookup = look;],
+ [IOP_LOOKUP_TAKES_UNSIGNED],
+ [define if your iops.lookup takes an unsigned int argument],
+ [-Werror])
+])
+
+
+AC_DEFUN([LINUX_D_INVALIDATE_IS_VOID], [
+ AC_CHECK_LINUX_BUILD([whether d_invalidate returns void],
+ [ac_cv_linux_func_d_invalidate_returns_void],
+ [#include <linux/fs.h>],
+ [
+ void d_invalidate(struct dentry *);
+ ],
+ [D_INVALIDATE_IS_VOID],
+ [define if your d_invalidate returns void],
+ [])
+])
+
+AC_DEFUN([LINUX_KERNEL_READ_OFFSET_IS_LAST], [
+ AC_CHECK_LINUX_BUILD([whether offset is the last argument to kernel_read],
+ [ac_cv_linux_func_kernel_read_offset_is_last],
+ [#include <linux/fs.h>],
+ [
+ ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
+ ],
+ [KERNEL_READ_OFFSET_IS_LAST],
+ [define if your kernel_read has offset as the last argument],
+ [])
+])
+
+AC_DEFUN([LINUX_KEYRING_SEARCH_TAKES_RECURSE], [
+ AC_CHECK_LINUX_BUILD([whether keyring_search has the recurse parameter],
+ [ac_cv_linux_func_keyring_search_takes_recurse],
+ [#include <linux/key.h>
+ key_ref_t tkey;],
+ [
+ keyring_search(tkey, NULL, NULL, 0);
+ ],
+ [KEYRING_SEARCH_TAKES_RECURSE],
+ [define if your keyring_search has the recurse parameter],
+ [])
])
-
git://git.openafs.org / openafs.git / blobdiff