diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/ceph/libceph.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/ceph/libceph.h | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/ANDROID_3.4.5/include/linux/ceph/libceph.h b/ANDROID_3.4.5/include/linux/ceph/libceph.h deleted file mode 100644 index e71d6839..00000000 --- a/ANDROID_3.4.5/include/linux/ceph/libceph.h +++ /dev/null @@ -1,252 +0,0 @@ -#ifndef _FS_CEPH_LIBCEPH_H -#define _FS_CEPH_LIBCEPH_H - -#include "ceph_debug.h" - -#include <asm/unaligned.h> -#include <linux/backing-dev.h> -#include <linux/completion.h> -#include <linux/exportfs.h> -#include <linux/bug.h> -#include <linux/fs.h> -#include <linux/mempool.h> -#include <linux/pagemap.h> -#include <linux/wait.h> -#include <linux/writeback.h> -#include <linux/slab.h> - -#include "types.h" -#include "messenger.h" -#include "msgpool.h" -#include "mon_client.h" -#include "osd_client.h" -#include "ceph_fs.h" - -/* - * Supported features - */ -#define CEPH_FEATURE_SUPPORTED_DEFAULT CEPH_FEATURE_NOSRCADDR -#define CEPH_FEATURE_REQUIRED_DEFAULT CEPH_FEATURE_NOSRCADDR - -/* - * mount options - */ -#define CEPH_OPT_FSID (1<<0) -#define CEPH_OPT_NOSHARE (1<<1) /* don't share client with other sbs */ -#define CEPH_OPT_MYIP (1<<2) /* specified my ip */ -#define CEPH_OPT_NOCRC (1<<3) /* no data crc on writes */ - -#define CEPH_OPT_DEFAULT (0) - -#define ceph_set_opt(client, opt) \ - (client)->options->flags |= CEPH_OPT_##opt; -#define ceph_test_opt(client, opt) \ - (!!((client)->options->flags & CEPH_OPT_##opt)) - -struct ceph_options { - int flags; - struct ceph_fsid fsid; - struct ceph_entity_addr my_addr; - int mount_timeout; - int osd_idle_ttl; - int osd_timeout; - int osd_keepalive_timeout; - - /* - * any type that can't be simply compared or doesn't need need - * to be compared should go beyond this point, - * ceph_compare_options() should be updated accordingly - */ - - struct ceph_entity_addr *mon_addr; /* should be the first - pointer type of args */ - int num_mon; - char *name; - struct ceph_crypto_key *key; -}; - -/* - * defaults - */ -#define CEPH_MOUNT_TIMEOUT_DEFAULT 60 -#define CEPH_OSD_TIMEOUT_DEFAULT 60 /* seconds */ -#define CEPH_OSD_KEEPALIVE_DEFAULT 5 -#define CEPH_OSD_IDLE_TTL_DEFAULT 60 - -#define CEPH_MSG_MAX_FRONT_LEN (16*1024*1024) -#define CEPH_MSG_MAX_DATA_LEN (16*1024*1024) - -#define CEPH_AUTH_NAME_DEFAULT "guest" - -/* - * Delay telling the MDS we no longer want caps, in case we reopen - * the file. Delay a minimum amount of time, even if we send a cap - * message for some other reason. Otherwise, take the oppotunity to - * update the mds to avoid sending another message later. - */ -#define CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT 5 /* cap release delay */ -#define CEPH_CAPS_WANTED_DELAY_MAX_DEFAULT 60 /* cap release delay */ - -#define CEPH_CAP_RELEASE_SAFETY_DEFAULT (CEPH_CAPS_PER_RELEASE * 4) - -/* mount state */ -enum { - CEPH_MOUNT_MOUNTING, - CEPH_MOUNT_MOUNTED, - CEPH_MOUNT_UNMOUNTING, - CEPH_MOUNT_UNMOUNTED, - CEPH_MOUNT_SHUTDOWN, -}; - -/* - * subtract jiffies - */ -static inline unsigned long time_sub(unsigned long a, unsigned long b) -{ - BUG_ON(time_after(b, a)); - return (long)a - (long)b; -} - -struct ceph_mds_client; - -/* - * per client state - * - * possibly shared by multiple mount points, if they are - * mounting the same ceph filesystem/cluster. - */ -struct ceph_client { - struct ceph_fsid fsid; - bool have_fsid; - - void *private; - - struct ceph_options *options; - - struct mutex mount_mutex; /* serialize mount attempts */ - wait_queue_head_t auth_wq; - int auth_err; - - int (*extra_mon_dispatch)(struct ceph_client *, struct ceph_msg *); - - u32 supported_features; - u32 required_features; - - struct ceph_messenger *msgr; /* messenger instance */ - struct ceph_mon_client monc; - struct ceph_osd_client osdc; - -#ifdef CONFIG_DEBUG_FS - struct dentry *debugfs_dir; - struct dentry *debugfs_monmap; - struct dentry *debugfs_osdmap; -#endif -}; - - - -/* - * snapshots - */ - -/* - * A "snap context" is the set of existing snapshots when we - * write data. It is used by the OSD to guide its COW behavior. - * - * The ceph_snap_context is refcounted, and attached to each dirty - * page, indicating which context the dirty data belonged when it was - * dirtied. - */ -struct ceph_snap_context { - atomic_t nref; - u64 seq; - int num_snaps; - u64 snaps[]; -}; - -static inline struct ceph_snap_context * -ceph_get_snap_context(struct ceph_snap_context *sc) -{ - /* - printk("get_snap_context %p %d -> %d\n", sc, atomic_read(&sc->nref), - atomic_read(&sc->nref)+1); - */ - if (sc) - atomic_inc(&sc->nref); - return sc; -} - -static inline void ceph_put_snap_context(struct ceph_snap_context *sc) -{ - if (!sc) - return; - /* - printk("put_snap_context %p %d -> %d\n", sc, atomic_read(&sc->nref), - atomic_read(&sc->nref)-1); - */ - if (atomic_dec_and_test(&sc->nref)) { - /*printk(" deleting snap_context %p\n", sc);*/ - kfree(sc); - } -} - -/* - * calculate the number of pages a given length and offset map onto, - * if we align the data. - */ -static inline int calc_pages_for(u64 off, u64 len) -{ - return ((off+len+PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT) - - (off >> PAGE_CACHE_SHIFT); -} - -/* ceph_common.c */ -extern const char *ceph_msg_type_name(int type); -extern int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid); -extern struct kmem_cache *ceph_inode_cachep; -extern struct kmem_cache *ceph_cap_cachep; -extern struct kmem_cache *ceph_dentry_cachep; -extern struct kmem_cache *ceph_file_cachep; - -extern struct ceph_options *ceph_parse_options(char *options, - const char *dev_name, const char *dev_name_end, - int (*parse_extra_token)(char *c, void *private), - void *private); -extern void ceph_destroy_options(struct ceph_options *opt); -extern int ceph_compare_options(struct ceph_options *new_opt, - struct ceph_client *client); -extern struct ceph_client *ceph_create_client(struct ceph_options *opt, - void *private, - unsigned supported_features, - unsigned required_features); -extern u64 ceph_client_id(struct ceph_client *client); -extern void ceph_destroy_client(struct ceph_client *client); -extern int __ceph_open_session(struct ceph_client *client, - unsigned long started); -extern int ceph_open_session(struct ceph_client *client); - -/* pagevec.c */ -extern void ceph_release_page_vector(struct page **pages, int num_pages); - -extern struct page **ceph_get_direct_page_vector(const char __user *data, - int num_pages, - bool write_page); -extern void ceph_put_page_vector(struct page **pages, int num_pages, - bool dirty); -extern void ceph_release_page_vector(struct page **pages, int num_pages); -extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags); -extern int ceph_copy_user_to_page_vector(struct page **pages, - const char __user *data, - loff_t off, size_t len); -extern int ceph_copy_to_page_vector(struct page **pages, - const char *data, - loff_t off, size_t len); -extern int ceph_copy_from_page_vector(struct page **pages, - char *data, - loff_t off, size_t len); -extern int ceph_copy_page_vector_to_user(struct page **pages, char __user *data, - loff_t off, size_t len); -extern void ceph_zero_page_vector_range(int off, int len, struct page **pages); - - -#endif /* _FS_CEPH_SUPER_H */ |