#include <linux/portals_compat25.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
-# define PGCACHE_WRLOCK(mapping) write_lock(&mapping->page_lock)
-# define PGCACHE_WRUNLOCK(mapping) write_unlock(&mapping->page_lock)
-#define KDEVT_INIT(val) { .value = val }
+/*
+ * OBD need working random driver, thus all our
+ * initialization routines must be called after device
+ * driver initialization
+ */
+#ifndef MODULE
+#undef module_init
+#define module_init(a) late_initcall(a)
+#endif
+
+/* XXX our code should be using the 2.6 calls, not the other way around */
+#define TryLockPage(page) TestSetPageLocked(page)
+#define filemap_fdatasync(mapping) filemap_fdatawrite(mapping)
+#define Page_Uptodate(page) PageUptodate(page)
+
+#define KDEVT_INIT(val) (val)
+
#define LTIME_S(time) (time.tv_sec)
#define ll_path_lookup path_lookup
-
+#define ll_permission(inode,mask,nd) permission(inode,mask,nd)
#define ll_pgcache_lock(mapping) spin_lock(&mapping->page_lock)
#define ll_pgcache_unlock(mapping) spin_unlock(&mapping->page_lock)
+#define ll_call_writepage(inode, page) \
+ (inode)->i_mapping->a_ops->writepage(page, NULL)
+#define ll_invalidate_inode_pages(inode) \
+ invalidate_inode_pages((inode)->i_mapping)
+#define ll_truncate_complete_page(page) \
+ truncate_complete_page(page->mapping, page)
+
+#define ll_vfs_create(a,b,c,d) vfs_create(a,b,c,d)
+
+#define ll_dev_t dev_t
+#define kdev_t dev_t
+#define to_kdev_t(dev) (dev)
+#define kdev_t_to_nr(dev) (dev)
+#define val_to_kdev(dev) (dev)
+#define ILOOKUP(sb, ino, test, data) ilookup5(sb, ino, test, data);
+
+#include <linux/writeback.h>
+
+static inline void lustre_daemonize_helper(void)
+{
+ LASSERT(current->signal != NULL);
+ current->signal->session = 1;
+ if (current->group_leader)
+ current->group_leader->signal->pgrp = 1;
+ else
+ CERROR("we aren't group leader\n");
+ current->signal->tty = NULL;
+}
+
+static inline int cleanup_group_info(void)
+{
+ struct group_info *ginfo;
+
+ ginfo = groups_alloc(2);
+ if (!ginfo)
+ return -ENOMEM;
+
+ ginfo->ngroups = 0;
+ set_current_groups(ginfo);
+ put_group_info(ginfo);
+
+ return 0;
+}
+
+#define smp_num_cpus NR_CPUS
+
+#ifndef conditional_schedule
+#define conditional_schedule() cond_resched()
+#endif
+
+#include <linux/proc_fs.h>
#else /* 2.4.. */
-# define PGCACHE_WRLOCK(mapping) spin_lock(&pagecache_lock)
-# define PGCACHE_WRUNLOCK(mapping) spin_unlock(&pagecache_lock)
+#define ll_vfs_create(a,b,c,d) vfs_create(a,b,c)
+#define ll_permission(inode,mask,nd) permission(inode,mask)
+#define ILOOKUP(sb, ino, test, data) ilookup4(sb, ino, test, data);
+#define DCACHE_DISCONNECTED DCACHE_NFSD_DISCONNECTED
+#define ll_dev_t int
+
+static inline void clear_page_dirty(struct page *page)
+{
+ if (PageDirty(page))
+ ClearPageDirty(page);
+}
/* 2.5 uses hlists for some things, like the d_hash. we'll treat them
* as 2.5 and let macros drop back.. */
+#ifndef HLIST_HEAD /* until we get a kernel newer than l28 */
#define hlist_entry list_entry
#define hlist_head list_head
#define hlist_node list_head
#define hlist_del_init list_del_init
#define hlist_add_head list_add
#define hlist_for_each_safe list_for_each_safe
+#endif
#define KDEVT_INIT(val) (val)
#define ext3_xattr_set_handle ext3_xattr_set
+#define extN_xattr_set_handle extN_xattr_set
#define try_module_get __MOD_INC_USE_COUNT
#define module_put __MOD_DEC_USE_COUNT
#define LTIME_S(time) (time)
-#ifndef CONFIG_RH_2_4_20
+#if !defined(CONFIG_RH_2_4_20) && !defined(cpu_online)
#define cpu_online(cpu) (cpu_online_map & (1<<cpu))
#endif
-static inline int ll_path_lookup(const char *path, unsigned flags,
- struct nameidata *nd)
+static inline int ll_path_lookup(const char *path, unsigned flags,
+ struct nameidata *nd)
{
int error = 0;
if (path_init(path, flags, nd))
error = path_walk(path, nd);
return error;
}
+#define ll_permission(inode,mask,nd) permission(inode,mask)
typedef long sector_t;
#define ll_pgcache_lock(mapping) spin_lock(&pagecache_lock)
#define ll_pgcache_unlock(mapping) spin_unlock(&pagecache_lock)
+#define ll_call_writepage(inode, page) \
+ (inode)->i_mapping->a_ops->writepage(page)
+#define ll_invalidate_inode_pages(inode) invalidate_inode_pages(inode)
+#define ll_truncate_complete_page(page) truncate_complete_page(page)
-#endif /* end of 2.4 compat macros */
+static inline void __d_drop(struct dentry *dentry)
+{
+ list_del(&dentry->d_hash);
+ INIT_LIST_HEAD(&dentry->d_hash);
+}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
-# define filemap_fdatasync(mapping) filemap_fdatawrite(mapping)
-#endif
+static inline void lustre_daemonize_helper(void)
+{
+ current->session = 1;
+ current->pgrp = 1;
+ current->tty = NULL;
+}
+static inline int cleanup_group_info(void)
+{
+ /* Get rid of unneeded supplementary groups */
+ current->ngroups = 0;
+ memset(current->groups, 0, sizeof(current->groups));
+ return 0;
+}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
-# define TryLockPage(page) TestSetPageLocked(page)
+#ifndef conditional_schedule
+#define conditional_schedule() if (unlikely(need_resched())) schedule()
#endif
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
-# define Page_Uptodate(page) PageUptodate(page)
+/* to find proc_dir_entry from inode. 2.6 has native one -bzzz */
+#ifndef HAVE_PDE
+#define PDE(ii) ((ii)->u.generic_ip)
#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-#define rb_node_s rb_node
-#define rb_root_s rb_root
-typedef struct rb_root_s rb_root_t;
-typedef struct rb_node_s rb_node_t;
+#endif /* end of 2.4 compat macros */
+
+#ifdef HAVE_PAGE_LIST
+static inline int mapping_has_pages(struct address_space *mapping)
+{
+ int rc = 1;
+
+ ll_pgcache_lock(mapping);
+ if (list_empty(&mapping->dirty_pages) &&
+ list_empty(&mapping->clean_pages) &&
+ list_empty(&mapping->locked_pages)) {
+ rc = 0;
+ }
+ ll_pgcache_unlock(mapping);
+
+ return rc;
+}
+
+static inline int clear_page_dirty_for_io(struct page *page)
+{
+ struct address_space *mapping = page->mapping;
+
+ if (page->mapping && PageDirty(page)) {
+ ClearPageDirty(page);
+ ll_pgcache_lock(mapping);
+ list_del(&page->list);
+ list_add(&page->list, &mapping->locked_pages);
+ ll_pgcache_unlock(mapping);
+ return 1;
+ }
+ return 0;
+}
+#else
+static inline int mapping_has_pages(struct address_space *mapping)
+{
+ return mapping->nrpages > 0;
+}
#endif
#endif /* __KERNEL__ */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff