/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _FS_CEPH_STRING_TABLE_H #define _FS_CEPH_STRING_TABLE_H #include <linux/types.h> #include <linux/kref.h> #include <linux/rbtree.h> #include <linux/rcupdate.h> struct ceph_string { struct kref kref; union { struct rb_node node; struct rcu_head rcu; }; size_t len; char str[]; }; extern void ceph_release_string(struct kref *ref); extern struct ceph_string *ceph_find_or_create_string(const char *str, size_t len); extern bool ceph_strings_empty(void); static inline struct ceph_string *ceph_get_string(struct ceph_string *str) { kref_get(&str->kref); return str; } static inline void ceph_put_string(struct ceph_string *str) { if (!str) return; kref_put(&str->kref, ceph_release_string); } static inline int ceph_compare_string(struct ceph_string *cs, const char* str, size_t len) { size_t cs_len = cs ? cs->len : 0; if (cs_len != len) return cs_len - len; if (len == 0) return 0; return strncmp(cs->str, str, len); } #define ceph_try_get_string(x) \ ({ \ struct ceph_string *___str; \ rcu_read_lock(); \ for (;;) { \ ___str = rcu_dereference(x); \ if (!___str || \ kref_get_unless_zero(&___str->kref)) \ break; \ } \ rcu_read_unlock(); \ (___str); \ }) #endif
Name | Type | Size | Permission | Actions |
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auth.h | File | 4.85 KB | 0644 |
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buffer.h | File | 833 B | 0644 |
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ceph_debug.h | File | 907 B | 0644 |
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ceph_features.h | File | 8.53 KB | 0644 |
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ceph_frag.h | File | 1.97 KB | 0644 |
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ceph_fs.h | File | 25.36 KB | 0644 |
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ceph_hash.h | File | 472 B | 0644 |
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cls_lock_client.h | File | 1.59 KB | 0644 |
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debugfs.h | File | 769 B | 0644 |
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decode.h | File | 9.06 KB | 0644 |
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libceph.h | File | 9.48 KB | 0644 |
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mdsmap.h | File | 1.62 KB | 0644 |
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messenger.h | File | 9.04 KB | 0644 |
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mon_client.h | File | 3.82 KB | 0644 |
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msgpool.h | File | 775 B | 0644 |
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msgr.h | File | 5.65 KB | 0644 |
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osd_client.h | File | 14.35 KB | 0644 |
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osdmap.h | File | 8.34 KB | 0644 |
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pagelist.h | File | 2.11 KB | 0644 |
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rados.h | File | 16.94 KB | 0644 |
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string_table.h | File | 1.3 KB | 0644 |
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types.h | File | 547 B | 0644 |
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