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Searched refs:xa_state (Results 1 – 10 of 10) sorted by relevance

/linux/Documentation/translations/zh_CN/core-api/
H A Dxarray.rst256 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
257 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
258 起，而不必每次都从头开始。xa_state的内容受rcu_read_lock()或xas_lock()的保护。如果需要删除保护状态
261 xa_state也被用来存储错误(store errors)。你可以调用xas_error()来检索错误。所有的操作在进行之前都
262 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
266 如果xa_state持有 ``ENOMEM`` 错误，调用xas_nomem()将尝试使用指定的gfp标志分配更多的内存，并将其缓
267 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
287 - 一个XArray节点。 在使用多索引xa_state时可能是可见的。
309 xa_state中设置ENOMEM。
315 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
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/linux/include/linux/
H A Dxarray.h1354 struct xa_state { struct
1397 struct xa_state name = __XA_STATE(array, index, 0, 0)
1411 struct xa_state name = __XA_STATE(array, \
1435 static inline int xas_error(const struct xa_state *xas) in xas_error()
1449 static inline void xas_set_err(struct xa_state *xas, long err) in xas_set_err()
1460 static inline bool xas_invalid(const struct xa_state *xas) in xas_invalid()
1471 static inline bool xas_valid(const struct xa_state *xas) in xas_valid()
1482 static inline bool xas_is_node(const struct xa_state *xas) in xas_is_node()
1515 static inline void xas_reset(struct xa_state *xas) in xas_reset()
1532 static inline bool xas_retry(struct xa_state *xas, const void *entry) in xas_retry()
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/linux/lib/
H A Dxarray.c38 static inline void xas_lock_type(struct xa_state *xas, unsigned int lock_type) in xas_lock_type()
48 static inline void xas_unlock_type(struct xa_state *xas, unsigned int lock_type) in xas_unlock_type()
126 static void xas_squash_marks(const struct xa_state *xas) in xas_squash_marks()
150 static void xas_set_offset(struct xa_state *xas) in xas_set_offset()
156 static void xas_move_index(struct xa_state *xas, unsigned long offset) in xas_move_index()
163 static void xas_next_offset(struct xa_state *xas) in xas_next_offset()
169 static void *set_bounds(struct xa_state *xas) in set_bounds()
182 static void *xas_start(struct xa_state *xas) in xas_start()
204 static __always_inline void *xas_descend(struct xa_state *xas, in xas_descend()
237 void *xas_load(struct xa_state *xas) in xas_load()
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/linux/arch/arm64/kernel/
H A Dhibernate.c243 XA_STATE(xa_state, &mte_pages, 0); in swsusp_mte_free_storage()
247 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_free_storage()
299 XA_STATE(xa_state, &mte_pages, 0); in swsusp_mte_restore_tags()
304 xas_for_each(&xa_state, tags, ULONG_MAX) { in swsusp_mte_restore_tags()
305 unsigned long pfn = xa_state.xa_index; in swsusp_mte_restore_tags()
/linux/fs/
H A Ddax.c147 static wait_queue_head_t *dax_entry_waitqueue(struct xa_state *xas, in dax_entry_waitqueue()
185 static void dax_wake_entry(struct xa_state *xas, void *entry, in dax_wake_entry()
213 static void *get_next_unlocked_entry(struct xa_state *xas, unsigned int order) in get_next_unlocked_entry()
247 static void *wait_entry_unlocked_exclusive(struct xa_state *xas, void *entry) in wait_entry_unlocked_exclusive()
278 static void wait_entry_unlocked(struct xa_state *xas, void *entry) in wait_entry_unlocked()
299 static void put_unlocked_entry(struct xa_state *xas, void *entry, in put_unlocked_entry()
311 static void dax_unlock_entry(struct xa_state *xas, void *entry) in dax_unlock_entry()
327 static void *dax_lock_entry(struct xa_state *xas, void *entry) in dax_lock_entry()
650 static void *grab_mapping_entry(struct xa_state *xas, in grab_mapping_entry()
1042 static void *dax_insert_entry(struct xa_state *xas, struct vm_fault *vmf, in dax_insert_entry()
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/linux/fs/cachefiles/
H A Dondemand.c375 static struct cachefiles_req *cachefiles_ondemand_select_req(struct xa_state *xas, in cachefiles_ondemand_select_req()
400 struct xa_state *xas, int err) in cachefiles_ondemand_finish_req()
/linux/mm/
H A Dmemfd.c38 static void memfd_tag_pins(struct xa_state *xas) in memfd_tag_pins()
H A Dfilemap.c2055 static inline struct folio *find_get_entry(struct xa_state *xas, pgoff_t max, in find_get_entry()
3141 static inline loff_t folio_seek_hole_data(struct xa_state *xas, in folio_seek_hole_data()
3174 static inline size_t seek_folio_size(struct xa_state *xas, struct folio *folio) in seek_folio_size()
3696 static struct folio *next_uptodate_folio(struct xa_state *xas, in next_uptodate_folio()
H A Dhuge_memory.c3625 struct page *split_at, struct xa_state *xas, in __split_unmapped_folio()
3771 struct page *split_at, struct xa_state *xas, in __folio_freeze_and_split_unmapped()
/linux/fs/btrfs/
H A Dextent_io.c2098 static inline struct extent_buffer *find_get_eb(struct xa_state *xas, unsigned long max, in find_get_eb()