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Searched refs:xa_state (Results 1 – 9 of 9) sorted by relevance

/linux/Documentation/translations/zh_CN/core-api/
A Dxarray.rst255 高级API是基于xa_state的。这是一个不透明的数据结构，你使用XA_STATE()宏在堆栈中声明。这个宏初始化了
256 xa_state，准备开始在XArray上移动。它被用作一个游标来保持在XArray中的位置，并让你把各种操作组合在一
260 会检查xa_state是否处于错误状态，所以你没有必要在每次调用之后检查错误；你可以连续进行多次调用，只在
265 存在xa_state中供下一次尝试。这个想法是，你拿着xa_lock，尝试操作，然后放弃锁。该操作试图在持有锁的情
285 - 一个XArray节点。 在使用多索引xa_state时可能是可见的。
307 xa_state中设置ENOMEM。
313 xas_load()会尽可能地将xa_state移动到该条目附近。如果你知道xa_state已经移动到了该条目，并且需要检查
321 一个条目，那么它将找到当前引用的条目之后的下一个条目。如果没有，它将返回xa_state索引处的条目。使用
325 xas_find_marked()函数也是如此。如果xa_state没有被移动过，它将返回xa_state的索引处的条目，如果它
330 xas_pause()函数的存在就是为了这个目的。在你完成了必要的工作并希望恢复后，xa_state处于适当的状态，在
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/linux/include/linux/
A Dxarray.h1310 struct xa_state { struct
1365 struct xa_state name = __XA_STATE(array, \
1496 void *xas_load(struct xa_state *);
1497 void *xas_store(struct xa_state *, void *entry);
1499 void *xas_find_conflict(struct xa_state *);
1505 void xas_init_marks(const struct xa_state *);
1507 bool xas_nomem(struct xa_state *, gfp_t);
1508 void xas_pause(struct xa_state *);
1510 void xas_create_range(struct xa_state *);
1764 void *__xas_next(struct xa_state *);
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/linux/lib/
A Dxarray.c160 static void xas_advance(struct xa_state *xas) in xas_advance()
166 static void *set_bounds(struct xa_state *xas) in set_bounds()
179 static void *xas_start(struct xa_state *xas) in xas_start()
231 void *xas_load(struct xa_state *xas) in xas_load()
267 static void xas_destroy(struct xa_state *xas) in xas_destroy()
436 static void xas_shrink(struct xa_state *xas) in xas_shrink()
703 void xas_create_range(struct xa_state *xas) in xas_create_range()
1115 void xas_pause(struct xa_state *xas) in xas_pause()
1145 void *__xas_prev(struct xa_state *xas) in __xas_prev()
1184 void *__xas_next(struct xa_state *xas) in __xas_next()
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/linux/arch/arm64/mm/
A Dmteswap.c84 XA_STATE(xa_state, &mte_pages, entry.val); in mte_invalidate_tags_area()
87 xas_for_each(&xa_state, tags, last_entry.val - 1) { in mte_invalidate_tags_area()
88 __xa_erase(&mte_pages, xa_state.xa_index); in mte_invalidate_tags_area()
/linux/arch/arm64/kernel/
A Dhibernate.c248 XA_STATE(xa_state, &mte_pages, 0); in swsusp_mte_free_storage()
252 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_free_storage()
298 XA_STATE(xa_state, &mte_pages, 0); in swsusp_mte_restore_tags()
303 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_restore_tags()
304 unsigned long pfn = xa_state.xa_index; in swsusp_mte_restore_tags()
/linux/fs/
A Ddax.c157 static wait_queue_head_t *dax_entry_waitqueue(struct xa_state *xas, in dax_entry_waitqueue()
195 static void dax_wake_entry(struct xa_state *xas, void *entry, in dax_wake_entry()
223 static void *get_unlocked_entry(struct xa_state *xas, unsigned int order) in get_unlocked_entry()
257 static void wait_entry_unlocked(struct xa_state *xas, void *entry) in wait_entry_unlocked()
278 static void put_unlocked_entry(struct xa_state *xas, void *entry, in put_unlocked_entry()
290 static void dax_unlock_entry(struct xa_state *xas, void *entry) in dax_unlock_entry()
306 static void *dax_lock_entry(struct xa_state *xas, void *entry) in dax_lock_entry()
487 static void *grab_mapping_entry(struct xa_state *xas, in grab_mapping_entry()
744 static void *dax_insert_entry(struct xa_state *xas, in dax_insert_entry()
1052 static vm_fault_t dax_load_hole(struct xa_state *xas, in dax_load_hole()
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/linux/Documentation/core-api/
A Dxarray.rst319 macro. This macro initialises the xa_state ready to start walking
324 The xa_state is also used to store errors. You can call
333 If the xa_state is holding an ``ENOMEM`` error, calling xas_nomem()
400 The xas_load() will walk the xa_state as close to the entry
401 as it can. If you know the xa_state has already been walked to the
417 entry at the index of the xa_state. Using xas_next_entry() to
422 The xas_find_marked() function is similar. If the xa_state has
425 the entry referenced by the xa_state. The xas_next_marked()
462 Calling xas_load() with a multi-index xa_state will walk the
471 in the xa_state will not be changed. When iterating over an XArray
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/linux/mm/
A Dmemfd.c31 static void memfd_tag_pins(struct xa_state *xas) in memfd_tag_pins()
A Dfilemap.c1982 static inline struct page *find_get_entry(struct xa_state *xas, pgoff_t max, in find_get_entry()
2796 static inline loff_t page_seek_hole_data(struct xa_state *xas, in page_seek_hole_data()
2829 unsigned int seek_page_size(struct xa_state *xas, struct page *page) in seek_page_size()
3236 struct xa_state *xas, pgoff_t end_pgoff) in next_uptodate_page()
3276 struct xa_state *xas, in first_map_page()
3284 struct xa_state *xas, in next_map_page()

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