+
+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],
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;
+ [struct inode _inode = {0};
unsigned int flags = 0;
(void)_inode.i_op->permission(&_inode, 0, flags);],
[IOP_PERMISSION_TAKES_FLAGS],
#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],
[])
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],
- [])
+ [-Werror])
])
[#include <linux/rwsem.h>
#include <linux/key.h> ],
[struct task_struct *t=NULL;
- (void) key_alloc(NULL, NULL, 0, 0, t, 0, 0);],
+ 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])
[#include <linux/rwsem.h>
#include <linux/key.h>],
[struct cred *c = NULL;
- (void) key_alloc(NULL, NULL, 0, 0, c, 0, 0);],
+ 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])
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],
[])
])
+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],
+ [])
+])
+
+
AC_DEFUN([LINUX_HAVE_KMEM_CACHE_T], [
AC_CHECK_LINUX_BUILD([whether kmem_cache_t exists],
[ac_cv_linux_have_kmem_cache_t],
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],
AC_DEFUN([LINUX_HAVE_DCACHE_LOCK], [
AC_CHECK_LINUX_BUILD([for dcache_lock],
[ac_cv_linux_have_dcache_lock],
- [#include <linux/dcache.h> ],
+ [#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_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],
+ [])
+])
git://git.openafs.org / openafs.git / blobdiff