#ifndef LUSTRE_PATCHLESS_COMPAT_H #define LUSTRE_PATCHLESS_COMPAT_H #include #ifndef LUSTRE_KERNEL_VERSION #include #ifndef HAVE_TRUNCATE_COMPLETE_PAGE #include #include #include /* XXX copy & paste from 2.6.15 kernel */ static inline void ll_remove_from_page_cache(struct page *page) { struct address_space *mapping = page->mapping; BUG_ON(!PageLocked(page)); #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)) write_lock_irq(&mapping->tree_lock); #else spin_lock_irq(&mapping->tree_lock); #endif radix_tree_delete(&mapping->page_tree, page->index); page->mapping = NULL; mapping->nrpages--; #ifdef HAVE_NR_PAGECACHE atomic_add(-1, &nr_pagecache); // XXX pagecache_acct(-1); #else __dec_zone_page_state(page, NR_FILE_PAGES); #endif #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)) write_unlock_irq(&mapping->tree_lock); #else spin_unlock_irq(&mapping->tree_lock); #endif } static inline void truncate_complete_page(struct address_space *mapping, struct page *page) { if (page->mapping != mapping) return; if (PagePrivate(page)) page->mapping->a_ops->invalidatepage(page, 0); clear_page_dirty(page); ClearPageUptodate(page); ClearPageMappedToDisk(page); ll_remove_from_page_cache(page); page_cache_release(page); /* pagecache ref */ } #endif /* megahack */ static inline void d_rehash_cond(struct dentry * entry, int lock) { if (!lock) spin_unlock(&dcache_lock); d_rehash(entry); if (!lock) spin_lock(&dcache_lock); } #define __d_rehash(dentry, lock) d_rehash_cond(dentry, lock) #define LUSTRE_PATCHLESS #ifndef ATTR_FROM_OPEN #define ATTR_FROM_OPEN 0 #endif #ifndef ATTR_RAW #define ATTR_RAW 0 #endif #endif /* LUSTRE_KERNEL_VERSION */ #endif