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linux
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ceph
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📄 auth.h
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📄 buffer.h
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📄 ceph_debug.h
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📄 ceph_features.h
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📄 ceph_frag.h
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📄 ceph_fs.h
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📄 ceph_hash.h
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📄 cls_lock_client.h
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📄 debugfs.h
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📄 decode.h
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📄 libceph.h
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📄 mdsmap.h
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📄 messenger.h
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📄 mon_client.h
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📄 msgpool.h
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📄 msgr.h
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📄 osd_client.h
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📄 osdmap.h
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📄 pagelist.h
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📄 rados.h
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📄 string_table.h
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📄 striper.h
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📄 types.h
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EDIT: mdsmap.h
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _FS_CEPH_MDSMAP_H #define _FS_CEPH_MDSMAP_H #include <linux/bug.h> #include <linux/ceph/types.h> /* * mds map - describe servers in the mds cluster. * * we limit fields to those the client actually xcares about */ struct ceph_mds_info { u64 global_id; struct ceph_entity_addr addr; s32 state; int num_export_targets; bool laggy; u32 *export_targets; }; struct ceph_mdsmap { u32 m_epoch, m_client_epoch, m_last_failure; u32 m_root; u32 m_session_timeout; /* seconds */ u32 m_session_autoclose; /* seconds */ u64 m_max_file_size; /* * maximum size for xattrs blob. * Zeroed by default to force the usage of the (sync) SETXATTR Op. */ u64 m_max_xattr_size; u32 m_max_mds; /* expected up:active mds number */ u32 m_num_active_mds; /* actual up:active mds number */ u32 possible_max_rank; /* possible max rank index */ struct ceph_mds_info *m_info; /* which object pools file data can be stored in */ int m_num_data_pg_pools; u64 *m_data_pg_pools; u64 m_cas_pg_pool; bool m_enabled; bool m_damaged; int m_num_laggy; }; static inline struct ceph_entity_addr * ceph_mdsmap_get_addr(struct ceph_mdsmap *m, int w) { if (w >= m->possible_max_rank) return NULL; return &m->m_info[w].addr; } static inline int ceph_mdsmap_get_state(struct ceph_mdsmap *m, int w) { BUG_ON(w < 0); if (w >= m->possible_max_rank) return CEPH_MDS_STATE_DNE; return m->m_info[w].state; } static inline bool ceph_mdsmap_is_laggy(struct ceph_mdsmap *m, int w) { if (w >= 0 && w < m->possible_max_rank) return m->m_info[w].laggy; return false; } extern int ceph_mdsmap_get_random_mds(struct ceph_mdsmap *m); struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end, bool msgr2); extern void ceph_mdsmap_destroy(struct ceph_mdsmap *m); extern bool ceph_mdsmap_is_cluster_available(struct ceph_mdsmap *m); #endif