Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 858 deletions

diff --git a/ANDROID_3.4.5/fs/ceph/super.h b/ANDROID_3.4.5/fs/ceph/super.h
deleted file mode 100644
index fc35036d..00000000
--- a/ANDROID_3.4.5/fs/ceph/super.h
+++ /dev/null
@@ -1,858 +0,0 @@
-#ifndef _FS_CEPH_SUPER_H
-#define _FS_CEPH_SUPER_H
-
-#include <linux/ceph/ceph_debug.h>
-
-#include <asm/unaligned.h>
-#include <linux/backing-dev.h>
-#include <linux/completion.h>
-#include <linux/exportfs.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 <linux/ceph/libceph.h>
-
-/* f_type in struct statfs */
-#define CEPH_SUPER_MAGIC 0x00c36400
-
-/* large granularity for statfs utilization stats to facilitate
- * large volume sizes on 32-bit machines. */
-#define CEPH_BLOCK_SHIFT   20  /* 1 MB */
-#define CEPH_BLOCK         (1 << CEPH_BLOCK_SHIFT)
-
-#define CEPH_MOUNT_OPT_DIRSTAT         (1<<4) /* `cat dirname` for stats */
-#define CEPH_MOUNT_OPT_RBYTES          (1<<5) /* dir st_bytes = rbytes */
-#define CEPH_MOUNT_OPT_NOASYNCREADDIR  (1<<7) /* no dcache readdir */
-#define CEPH_MOUNT_OPT_INO32           (1<<8) /* 32 bit inos */
-#define CEPH_MOUNT_OPT_DCACHE          (1<<9) /* use dcache for readdir etc */
-
-#define CEPH_MOUNT_OPT_DEFAULT    (CEPH_MOUNT_OPT_RBYTES)
-
-#define ceph_set_mount_opt(fsc, opt) \
-	(fsc)->mount_options->flags |= CEPH_MOUNT_OPT_##opt;
-#define ceph_test_mount_opt(fsc, opt) \
-	(!!((fsc)->mount_options->flags & CEPH_MOUNT_OPT_##opt))
-
-#define CEPH_RSIZE_DEFAULT             0           /* max read size */
-#define CEPH_RASIZE_DEFAULT            (8192*1024) /* readahead */
-#define CEPH_MAX_READDIR_DEFAULT        1024
-#define CEPH_MAX_READDIR_BYTES_DEFAULT  (512*1024)
-#define CEPH_SNAPDIRNAME_DEFAULT        ".snap"
-
-struct ceph_mount_options {
-	int flags;
-	int sb_flags;
-
-	int wsize;            /* max write size */
-	int rsize;            /* max read size */
-	int rasize;           /* max readahead */
-	int congestion_kb;    /* max writeback in flight */
-	int caps_wanted_delay_min, caps_wanted_delay_max;
-	int cap_release_safety;
-	int max_readdir;       /* max readdir result (entires) */
-	int max_readdir_bytes; /* max readdir result (bytes) */
-
-	/*
-	 * everything above this point can be memcmp'd; everything below
-	 * is handled in compare_mount_options()
-	 */
-
-	char *snapdir_name;   /* default ".snap" */
-};
-
-struct ceph_fs_client {
-	struct super_block *sb;
-
-	struct ceph_mount_options *mount_options;
-	struct ceph_client *client;
-
-	unsigned long mount_state;
-	int min_caps;                  /* min caps i added */
-
-	struct ceph_mds_client *mdsc;
-
-	/* writeback */
-	mempool_t *wb_pagevec_pool;
-	struct workqueue_struct *wb_wq;
-	struct workqueue_struct *pg_inv_wq;
-	struct workqueue_struct *trunc_wq;
-	atomic_long_t writeback_count;
-
-	struct backing_dev_info backing_dev_info;
-
-#ifdef CONFIG_DEBUG_FS
-	struct dentry *debugfs_dentry_lru, *debugfs_caps;
-	struct dentry *debugfs_congestion_kb;
-	struct dentry *debugfs_bdi;
-	struct dentry *debugfs_mdsc, *debugfs_mdsmap;
-#endif
-};
-
-
-/*
- * File i/o capability.  This tracks shared state with the metadata
- * server that allows us to cache or writeback attributes or to read
- * and write data.  For any given inode, we should have one or more
- * capabilities, one issued by each metadata server, and our
- * cumulative access is the OR of all issued capabilities.
- *
- * Each cap is referenced by the inode's i_caps rbtree and by per-mds
- * session capability lists.
- */
-struct ceph_cap {
-	struct ceph_inode_info *ci;
-	struct rb_node ci_node;          /* per-ci cap tree */
-	struct ceph_mds_session *session;
-	struct list_head session_caps;   /* per-session caplist */
-	int mds;
-	u64 cap_id;       /* unique cap id (mds provided) */
-	int issued;       /* latest, from the mds */
-	int implemented;  /* implemented superset of issued (for revocation) */
-	int mds_wanted;
-	u32 seq, issue_seq, mseq;
-	u32 cap_gen;      /* active/stale cycle */
-	unsigned long last_used;
-	struct list_head caps_item;
-};
-
-#define CHECK_CAPS_NODELAY    1  /* do not delay any further */
-#define CHECK_CAPS_AUTHONLY   2  /* only check auth cap */
-#define CHECK_CAPS_FLUSH      4  /* flush any dirty caps */
-
-/*
- * Snapped cap state that is pending flush to mds.  When a snapshot occurs,
- * we first complete any in-process sync writes and writeback any dirty
- * data before flushing the snapped state (tracked here) back to the MDS.
- */
-struct ceph_cap_snap {
-	atomic_t nref;
-	struct ceph_inode_info *ci;
-	struct list_head ci_item, flushing_item;
-
-	u64 follows, flush_tid;
-	int issued, dirty;
-	struct ceph_snap_context *context;
-
-	umode_t mode;
-	uid_t uid;
-	gid_t gid;
-
-	struct ceph_buffer *xattr_blob;
-	u64 xattr_version;
-
-	u64 size;
-	struct timespec mtime, atime, ctime;
-	u64 time_warp_seq;
-	int writing;   /* a sync write is still in progress */
-	int dirty_pages;     /* dirty pages awaiting writeback */
-};
-
-static inline void ceph_put_cap_snap(struct ceph_cap_snap *capsnap)
-{
-	if (atomic_dec_and_test(&capsnap->nref)) {
-		if (capsnap->xattr_blob)
-			ceph_buffer_put(capsnap->xattr_blob);
-		kfree(capsnap);
-	}
-}
-
-/*
- * The frag tree describes how a directory is fragmented, potentially across
- * multiple metadata servers.  It is also used to indicate points where
- * metadata authority is delegated, and whether/where metadata is replicated.
- *
- * A _leaf_ frag will be present in the i_fragtree IFF there is
- * delegation info.  That is, if mds >= 0 || ndist > 0.
- */
-#define CEPH_MAX_DIRFRAG_REP 4
-
-struct ceph_inode_frag {
-	struct rb_node node;
-
-	/* fragtree state */
-	u32 frag;
-	int split_by;         /* i.e. 2^(split_by) children */
-
-	/* delegation and replication info */
-	int mds;              /* -1 if same authority as parent */
-	int ndist;            /* >0 if replicated */
-	int dist[CEPH_MAX_DIRFRAG_REP];
-};
-
-/*
- * We cache inode xattrs as an encoded blob until they are first used,
- * at which point we parse them into an rbtree.
- */
-struct ceph_inode_xattr {
-	struct rb_node node;
-
-	const char *name;
-	int name_len;
-	const char *val;
-	int val_len;
-	int dirty;
-
-	int should_free_name;
-	int should_free_val;
-};
-
-/*
- * Ceph dentry state
- */
-struct ceph_dentry_info {
-	unsigned long flags;
-	struct ceph_mds_session *lease_session;
-	u32 lease_gen, lease_shared_gen;
-	u32 lease_seq;
-	unsigned long lease_renew_after, lease_renew_from;
-	struct list_head lru;
-	struct dentry *dentry;
-	u64 time;
-	u64 offset;
-};
-
-/*
- * dentry flags
- *
- * The locking for D_COMPLETE is a bit odd:
- *  - we can clear it at almost any time (see ceph_d_prune)
- *  - it is only meaningful if:
- *    - we hold dir inode i_ceph_lock
- *    - we hold dir FILE_SHARED caps
- *    - the dentry D_COMPLETE is set
- */
-#define CEPH_D_COMPLETE 1  /* if set, d_u.d_subdirs is complete directory */
-
-struct ceph_inode_xattrs_info {
-	/*
-	 * (still encoded) xattr blob. we avoid the overhead of parsing
-	 * this until someone actually calls getxattr, etc.
-	 *
-	 * blob->vec.iov_len == 4 implies there are no xattrs; blob ==
-	 * NULL means we don't know.
-	*/
-	struct ceph_buffer *blob, *prealloc_blob;
-
-	struct rb_root index;
-	bool dirty;
-	int count;
-	int names_size;
-	int vals_size;
-	u64 version, index_version;
-};
-
-/*
- * Ceph inode.
- */
-struct ceph_inode_info {
-	struct ceph_vino i_vino;   /* ceph ino + snap */
-
-	spinlock_t i_ceph_lock;
-
-	u64 i_version;
-	u32 i_time_warp_seq;
-
-	unsigned i_ceph_flags;
-	unsigned long i_release_count;
-
-	struct ceph_dir_layout i_dir_layout;
-	struct ceph_file_layout i_layout;
-	char *i_symlink;
-
-	/* for dirs */
-	struct timespec i_rctime;
-	u64 i_rbytes, i_rfiles, i_rsubdirs;
-	u64 i_files, i_subdirs;
-	u64 i_max_offset;  /* largest readdir offset, set with D_COMPLETE */
-
-	struct rb_root i_fragtree;
-	struct mutex i_fragtree_mutex;
-
-	struct ceph_inode_xattrs_info i_xattrs;
-
-	/* capabilities.  protected _both_ by i_ceph_lock and cap->session's
-	 * s_mutex. */
-	struct rb_root i_caps;           /* cap list */
-	struct ceph_cap *i_auth_cap;     /* authoritative cap, if any */
-	unsigned i_dirty_caps, i_flushing_caps;     /* mask of dirtied fields */
-	struct list_head i_dirty_item, i_flushing_item;
-	u64 i_cap_flush_seq;
-	/* we need to track cap writeback on a per-cap-bit basis, to allow
-	 * overlapping, pipelined cap flushes to the mds.  we can probably
-	 * reduce the tid to 8 bits if we're concerned about inode size. */
-	u16 i_cap_flush_last_tid, i_cap_flush_tid[CEPH_CAP_BITS];
-	wait_queue_head_t i_cap_wq;      /* threads waiting on a capability */
-	unsigned long i_hold_caps_min; /* jiffies */
-	unsigned long i_hold_caps_max; /* jiffies */
-	struct list_head i_cap_delay_list;  /* for delayed cap release to mds */
-	int i_cap_exporting_mds;         /* to handle cap migration between */
-	unsigned i_cap_exporting_mseq;   /*  mds's. */
-	unsigned i_cap_exporting_issued;
-	struct ceph_cap_reservation i_cap_migration_resv;
-	struct list_head i_cap_snaps;   /* snapped state pending flush to mds */
-	struct ceph_snap_context *i_head_snapc;  /* set if wr_buffer_head > 0 or
-						    dirty|flushing caps */
-	unsigned i_snap_caps;           /* cap bits for snapped files */
-
-	int i_nr_by_mode[CEPH_FILE_MODE_NUM];  /* open file counts */
-
-	u32 i_truncate_seq;        /* last truncate to smaller size */
-	u64 i_truncate_size;       /*  and the size we last truncated down to */
-	int i_truncate_pending;    /*  still need to call vmtruncate */
-
-	u64 i_max_size;            /* max file size authorized by mds */
-	u64 i_reported_size; /* (max_)size reported to or requested of mds */
-	u64 i_wanted_max_size;     /* offset we'd like to write too */
-	u64 i_requested_max_size;  /* max_size we've requested */
-
-	/* held references to caps */
-	int i_pin_ref;
-	int i_rd_ref, i_rdcache_ref, i_wr_ref, i_wb_ref;
-	int i_wrbuffer_ref, i_wrbuffer_ref_head;
-	u32 i_shared_gen;       /* increment each time we get FILE_SHARED */
-	u32 i_rdcache_gen;      /* incremented each time we get FILE_CACHE. */
-	u32 i_rdcache_revoking; /* RDCACHE gen to async invalidate, if any */
-
-	struct list_head i_unsafe_writes; /* uncommitted sync writes */
-	struct list_head i_unsafe_dirops; /* uncommitted mds dir ops */
-	spinlock_t i_unsafe_lock;
-
-	struct ceph_snap_realm *i_snap_realm; /* snap realm (if caps) */
-	int i_snap_realm_counter; /* snap realm (if caps) */
-	struct list_head i_snap_realm_item;
-	struct list_head i_snap_flush_item;
-
-	struct work_struct i_wb_work;  /* writeback work */
-	struct work_struct i_pg_inv_work;  /* page invalidation work */
-
-	struct work_struct i_vmtruncate_work;
-
-	struct inode vfs_inode; /* at end */
-};
-
-static inline struct ceph_inode_info *ceph_inode(struct inode *inode)
-{
-	return container_of(inode, struct ceph_inode_info, vfs_inode);
-}
-
-static inline struct ceph_fs_client *ceph_inode_to_client(struct inode *inode)
-{
-	return (struct ceph_fs_client *)inode->i_sb->s_fs_info;
-}
-
-static inline struct ceph_fs_client *ceph_sb_to_client(struct super_block *sb)
-{
-	return (struct ceph_fs_client *)sb->s_fs_info;
-}
-
-static inline struct ceph_vino ceph_vino(struct inode *inode)
-{
-	return ceph_inode(inode)->i_vino;
-}
-
-/*
- * ino_t is <64 bits on many architectures, blech.
- *
- *               i_ino (kernel inode)   st_ino (userspace)
- * i386          32                     32
- * x86_64+ino32  64                     32
- * x86_64        64                     64
- */
-static inline u32 ceph_ino_to_ino32(__u64 vino)
-{
-	u32 ino = vino & 0xffffffff;
-	ino ^= vino >> 32;
-	if (!ino)
-		ino = 2;
-	return ino;
-}
-
-/*
- * kernel i_ino value
- */
-static inline ino_t ceph_vino_to_ino(struct ceph_vino vino)
-{
-#if BITS_PER_LONG == 32
-	return ceph_ino_to_ino32(vino.ino);
-#else
-	return (ino_t)vino.ino;
-#endif
-}
-
-/*
- * user-visible ino (stat, filldir)
- */
-#if BITS_PER_LONG == 32
-static inline ino_t ceph_translate_ino(struct super_block *sb, ino_t ino)
-{
-	return ino;
-}
-#else
-static inline ino_t ceph_translate_ino(struct super_block *sb, ino_t ino)
-{
-	if (ceph_test_mount_opt(ceph_sb_to_client(sb), INO32))
-		ino = ceph_ino_to_ino32(ino);
-	return ino;
-}
-#endif
-
-
-/* for printf-style formatting */
-#define ceph_vinop(i) ceph_inode(i)->i_vino.ino, ceph_inode(i)->i_vino.snap
-
-static inline u64 ceph_ino(struct inode *inode)
-{
-	return ceph_inode(inode)->i_vino.ino;
-}
-static inline u64 ceph_snap(struct inode *inode)
-{
-	return ceph_inode(inode)->i_vino.snap;
-}
-
-static inline int ceph_ino_compare(struct inode *inode, void *data)
-{
-	struct ceph_vino *pvino = (struct ceph_vino *)data;
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	return ci->i_vino.ino == pvino->ino &&
-		ci->i_vino.snap == pvino->snap;
-}
-
-static inline struct inode *ceph_find_inode(struct super_block *sb,
-					    struct ceph_vino vino)
-{
-	ino_t t = ceph_vino_to_ino(vino);
-	return ilookup5(sb, t, ceph_ino_compare, &vino);
-}
-
-
-/*
- * Ceph inode.
- */
-#define CEPH_I_NODELAY   4  /* do not delay cap release */
-#define CEPH_I_FLUSH     8  /* do not delay flush of dirty metadata */
-#define CEPH_I_NOFLUSH  16  /* do not flush dirty caps */
-
-static inline void ceph_i_clear(struct inode *inode, unsigned mask)
-{
-	struct ceph_inode_info *ci = ceph_inode(inode);
-
-	spin_lock(&ci->i_ceph_lock);
-	ci->i_ceph_flags &= ~mask;
-	spin_unlock(&ci->i_ceph_lock);
-}
-
-static inline void ceph_i_set(struct inode *inode, unsigned mask)
-{
-	struct ceph_inode_info *ci = ceph_inode(inode);
-
-	spin_lock(&ci->i_ceph_lock);
-	ci->i_ceph_flags |= mask;
-	spin_unlock(&ci->i_ceph_lock);
-}
-
-static inline bool ceph_i_test(struct inode *inode, unsigned mask)
-{
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	bool r;
-
-	spin_lock(&ci->i_ceph_lock);
-	r = (ci->i_ceph_flags & mask) == mask;
-	spin_unlock(&ci->i_ceph_lock);
-	return r;
-}
-
-
-/* find a specific frag @f */
-extern struct ceph_inode_frag *__ceph_find_frag(struct ceph_inode_info *ci,
-						u32 f);
-
-/*
- * choose fragment for value @v.  copy frag content to pfrag, if leaf
- * exists
- */
-extern u32 ceph_choose_frag(struct ceph_inode_info *ci, u32 v,
-			    struct ceph_inode_frag *pfrag,
-			    int *found);
-
-static inline struct ceph_dentry_info *ceph_dentry(struct dentry *dentry)
-{
-	return (struct ceph_dentry_info *)dentry->d_fsdata;
-}
-
-static inline loff_t ceph_make_fpos(unsigned frag, unsigned off)
-{
-	return ((loff_t)frag << 32) | (loff_t)off;
-}
-
-/*
- * set/clear directory D_COMPLETE flag
- */
-void ceph_dir_set_complete(struct inode *inode);
-void ceph_dir_clear_complete(struct inode *inode);
-bool ceph_dir_test_complete(struct inode *inode);
-
-/*
- * caps helpers
- */
-static inline bool __ceph_is_any_real_caps(struct ceph_inode_info *ci)
-{
-	return !RB_EMPTY_ROOT(&ci->i_caps);
-}
-
-extern int __ceph_caps_issued(struct ceph_inode_info *ci, int *implemented);
-extern int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int t);
-extern int __ceph_caps_issued_other(struct ceph_inode_info *ci,
-				    struct ceph_cap *cap);
-
-static inline int ceph_caps_issued(struct ceph_inode_info *ci)
-{
-	int issued;
-	spin_lock(&ci->i_ceph_lock);
-	issued = __ceph_caps_issued(ci, NULL);
-	spin_unlock(&ci->i_ceph_lock);
-	return issued;
-}
-
-static inline int ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask,
-					int touch)
-{
-	int r;
-	spin_lock(&ci->i_ceph_lock);
-	r = __ceph_caps_issued_mask(ci, mask, touch);
-	spin_unlock(&ci->i_ceph_lock);
-	return r;
-}
-
-static inline int __ceph_caps_dirty(struct ceph_inode_info *ci)
-{
-	return ci->i_dirty_caps | ci->i_flushing_caps;
-}
-extern int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask);
-
-extern int ceph_caps_revoking(struct ceph_inode_info *ci, int mask);
-extern int __ceph_caps_used(struct ceph_inode_info *ci);
-
-extern int __ceph_caps_file_wanted(struct ceph_inode_info *ci);
-
-/*
- * wanted, by virtue of open file modes AND cap refs (buffered/cached data)
- */
-static inline int __ceph_caps_wanted(struct ceph_inode_info *ci)
-{
-	int w = __ceph_caps_file_wanted(ci) | __ceph_caps_used(ci);
-	if (w & CEPH_CAP_FILE_BUFFER)
-		w |= CEPH_CAP_FILE_EXCL;  /* we want EXCL if dirty data */
-	return w;
-}
-
-/* what the mds thinks we want */
-extern int __ceph_caps_mds_wanted(struct ceph_inode_info *ci);
-
-extern void ceph_caps_init(struct ceph_mds_client *mdsc);
-extern void ceph_caps_finalize(struct ceph_mds_client *mdsc);
-extern void ceph_adjust_min_caps(struct ceph_mds_client *mdsc, int delta);
-extern int ceph_reserve_caps(struct ceph_mds_client *mdsc,
-			     struct ceph_cap_reservation *ctx, int need);
-extern int ceph_unreserve_caps(struct ceph_mds_client *mdsc,
-			       struct ceph_cap_reservation *ctx);
-extern void ceph_reservation_status(struct ceph_fs_client *client,
-				    int *total, int *avail, int *used,
-				    int *reserved, int *min);
-
-
-
-/*
- * we keep buffered readdir results attached to file->private_data
- */
-#define CEPH_F_SYNC     1
-#define CEPH_F_ATEND    2
-
-struct ceph_file_info {
-	short fmode;     /* initialized on open */
-	short flags;     /* CEPH_F_* */
-
-	/* readdir: position within the dir */
-	u32 frag;
-	struct ceph_mds_request *last_readdir;
-
-	/* readdir: position within a frag */
-	unsigned offset;       /* offset of last chunk, adjusted for . and .. */
-	u64 next_offset;       /* offset of next chunk (last_name's + 1) */
-	char *last_name;       /* last entry in previous chunk */
-	struct dentry *dentry; /* next dentry (for dcache readdir) */
-	unsigned long dir_release_count;
-
-	/* used for -o dirstat read() on directory thing */
-	char *dir_info;
-	int dir_info_len;
-};
-
-
-
-/*
- * A "snap realm" describes a subset of the file hierarchy sharing
- * the same set of snapshots that apply to it.  The realms themselves
- * are organized into a hierarchy, such that children inherit (some of)
- * the snapshots of their parents.
- *
- * All inodes within the realm that have capabilities are linked into a
- * per-realm list.
- */
-struct ceph_snap_realm {
-	u64 ino;
-	atomic_t nref;
-	struct rb_node node;
-
-	u64 created, seq;
-	u64 parent_ino;
-	u64 parent_since;   /* snapid when our current parent became so */
-
-	u64 *prior_parent_snaps;      /* snaps inherited from any parents we */
-	int num_prior_parent_snaps;   /*  had prior to parent_since */
-	u64 *snaps;                   /* snaps specific to this realm */
-	int num_snaps;
-
-	struct ceph_snap_realm *parent;
-	struct list_head children;       /* list of child realms */
-	struct list_head child_item;
-
-	struct list_head empty_item;     /* if i have ref==0 */
-
-	struct list_head dirty_item;     /* if realm needs new context */
-
-	/* the current set of snaps for this realm */
-	struct ceph_snap_context *cached_context;
-
-	struct list_head inodes_with_caps;
-	spinlock_t inodes_with_caps_lock;
-};
-
-static inline int default_congestion_kb(void)
-{
-	int congestion_kb;
-
-	/*
-	 * Copied from NFS
-	 *
-	 * congestion size, scale with available memory.
-	 *
-	 *  64MB:    8192k
-	 * 128MB:   11585k
-	 * 256MB:   16384k
-	 * 512MB:   23170k
-	 *   1GB:   32768k
-	 *   2GB:   46340k
-	 *   4GB:   65536k
-	 *   8GB:   92681k
-	 *  16GB:  131072k
-	 *
-	 * This allows larger machines to have larger/more transfers.
-	 * Limit the default to 256M
-	 */
-	congestion_kb = (16*int_sqrt(totalram_pages)) << (PAGE_SHIFT-10);
-	if (congestion_kb > 256*1024)
-		congestion_kb = 256*1024;
-
-	return congestion_kb;
-}
-
-
-
-/* snap.c */
-struct ceph_snap_realm *ceph_lookup_snap_realm(struct ceph_mds_client *mdsc,
-					       u64 ino);
-extern void ceph_get_snap_realm(struct ceph_mds_client *mdsc,
-				struct ceph_snap_realm *realm);
-extern void ceph_put_snap_realm(struct ceph_mds_client *mdsc,
-				struct ceph_snap_realm *realm);
-extern int ceph_update_snap_trace(struct ceph_mds_client *m,
-				  void *p, void *e, bool deletion);
-extern void ceph_handle_snap(struct ceph_mds_client *mdsc,
-			     struct ceph_mds_session *session,
-			     struct ceph_msg *msg);
-extern void ceph_queue_cap_snap(struct ceph_inode_info *ci);
-extern int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
-				  struct ceph_cap_snap *capsnap);
-extern void ceph_cleanup_empty_realms(struct ceph_mds_client *mdsc);
-
-/*
- * a cap_snap is "pending" if it is still awaiting an in-progress
- * sync write (that may/may not still update size, mtime, etc.).
- */
-static inline bool __ceph_have_pending_cap_snap(struct ceph_inode_info *ci)
-{
-	return !list_empty(&ci->i_cap_snaps) &&
-		list_entry(ci->i_cap_snaps.prev, struct ceph_cap_snap,
-			   ci_item)->writing;
-}
-
-/* inode.c */
-extern const struct inode_operations ceph_file_iops;
-
-extern struct inode *ceph_alloc_inode(struct super_block *sb);
-extern void ceph_destroy_inode(struct inode *inode);
-
-extern struct inode *ceph_get_inode(struct super_block *sb,
-				    struct ceph_vino vino);
-extern struct inode *ceph_get_snapdir(struct inode *parent);
-extern int ceph_fill_file_size(struct inode *inode, int issued,
-			       u32 truncate_seq, u64 truncate_size, u64 size);
-extern void ceph_fill_file_time(struct inode *inode, int issued,
-				u64 time_warp_seq, struct timespec *ctime,
-				struct timespec *mtime, struct timespec *atime);
-extern int ceph_fill_trace(struct super_block *sb,
-			   struct ceph_mds_request *req,
-			   struct ceph_mds_session *session);
-extern int ceph_readdir_prepopulate(struct ceph_mds_request *req,
-				    struct ceph_mds_session *session);
-
-extern int ceph_inode_holds_cap(struct inode *inode, int mask);
-
-extern int ceph_inode_set_size(struct inode *inode, loff_t size);
-extern void __ceph_do_pending_vmtruncate(struct inode *inode);
-extern void ceph_queue_vmtruncate(struct inode *inode);
-
-extern void ceph_queue_invalidate(struct inode *inode);
-extern void ceph_queue_writeback(struct inode *inode);
-
-extern int ceph_do_getattr(struct inode *inode, int mask);
-extern int ceph_permission(struct inode *inode, int mask);
-extern int ceph_setattr(struct dentry *dentry, struct iattr *attr);
-extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
-			struct kstat *stat);
-
-/* xattr.c */
-extern int ceph_setxattr(struct dentry *, const char *, const void *,
-			 size_t, int);
-extern ssize_t ceph_getxattr(struct dentry *, const char *, void *, size_t);
-extern ssize_t ceph_listxattr(struct dentry *, char *, size_t);
-extern int ceph_removexattr(struct dentry *, const char *);
-extern void __ceph_build_xattrs_blob(struct ceph_inode_info *ci);
-extern void __ceph_destroy_xattrs(struct ceph_inode_info *ci);
-extern void __init ceph_xattr_init(void);
-extern void ceph_xattr_exit(void);
-
-/* caps.c */
-extern const char *ceph_cap_string(int c);
-extern void ceph_handle_caps(struct ceph_mds_session *session,
-			     struct ceph_msg *msg);
-extern int ceph_add_cap(struct inode *inode,
-			struct ceph_mds_session *session, u64 cap_id,
-			int fmode, unsigned issued, unsigned wanted,
-			unsigned cap, unsigned seq, u64 realmino, int flags,
-			struct ceph_cap_reservation *caps_reservation);
-extern void __ceph_remove_cap(struct ceph_cap *cap);
-static inline void ceph_remove_cap(struct ceph_cap *cap)
-{
-	spin_lock(&cap->ci->i_ceph_lock);
-	__ceph_remove_cap(cap);
-	spin_unlock(&cap->ci->i_ceph_lock);
-}
-extern void ceph_put_cap(struct ceph_mds_client *mdsc,
-			 struct ceph_cap *cap);
-
-extern void ceph_queue_caps_release(struct inode *inode);
-extern int ceph_write_inode(struct inode *inode, struct writeback_control *wbc);
-extern int ceph_fsync(struct file *file, loff_t start, loff_t end,
-		      int datasync);
-extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
-				    struct ceph_mds_session *session);
-extern struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci,
-					     int mds);
-extern int ceph_get_cap_mds(struct inode *inode);
-extern void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps);
-extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had);
-extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
-				       struct ceph_snap_context *snapc);
-extern void __ceph_flush_snaps(struct ceph_inode_info *ci,
-			       struct ceph_mds_session **psession,
-			       int again);
-extern void ceph_check_caps(struct ceph_inode_info *ci, int flags,
-			    struct ceph_mds_session *session);
-extern void ceph_check_delayed_caps(struct ceph_mds_client *mdsc);
-extern void ceph_flush_dirty_caps(struct ceph_mds_client *mdsc);
-
-extern int ceph_encode_inode_release(void **p, struct inode *inode,
-				     int mds, int drop, int unless, int force);
-extern int ceph_encode_dentry_release(void **p, struct dentry *dn,
-				      int mds, int drop, int unless);
-
-extern int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
-			 int *got, loff_t endoff);
-
-/* for counting open files by mode */
-static inline void __ceph_get_fmode(struct ceph_inode_info *ci, int mode)
-{
-	ci->i_nr_by_mode[mode]++;
-}
-extern void ceph_put_fmode(struct ceph_inode_info *ci, int mode);
-
-/* addr.c */
-extern const struct address_space_operations ceph_aops;
-extern int ceph_mmap(struct file *file, struct vm_area_struct *vma);
-
-/* file.c */
-extern const struct file_operations ceph_file_fops;
-extern const struct address_space_operations ceph_aops;
-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 struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
-extern int ceph_open(struct inode *inode, struct file *file);
-extern struct dentry *ceph_lookup_open(struct inode *dir, struct dentry *dentry,
-				       struct nameidata *nd, int mode,
-				       int locked_dir);
-extern int ceph_release(struct inode *inode, struct file *filp);
-
-/* dir.c */
-extern const struct file_operations ceph_dir_fops;
-extern const struct inode_operations ceph_dir_iops;
-extern const struct dentry_operations ceph_dentry_ops, ceph_snap_dentry_ops,
-	ceph_snapdir_dentry_ops;
-
-extern int ceph_handle_notrace_create(struct inode *dir, struct dentry *dentry);
-extern int ceph_handle_snapdir(struct ceph_mds_request *req,
-			       struct dentry *dentry, int err);
-extern struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
-					 struct dentry *dentry, int err);
-
-extern void ceph_dentry_lru_add(struct dentry *dn);
-extern void ceph_dentry_lru_touch(struct dentry *dn);
-extern void ceph_dentry_lru_del(struct dentry *dn);
-extern void ceph_invalidate_dentry_lease(struct dentry *dentry);
-extern unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn);
-extern struct inode *ceph_get_dentry_parent_inode(struct dentry *dentry);
-
-/*
- * our d_ops vary depending on whether the inode is live,
- * snapshotted (read-only), or a virtual ".snap" directory.
- */
-int ceph_init_dentry(struct dentry *dentry);
-
-
-/* ioctl.c */
-extern long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-
-/* export.c */
-extern const struct export_operations ceph_export_ops;
-
-/* locks.c */
-extern int ceph_lock(struct file *file, int cmd, struct file_lock *fl);
-extern int ceph_flock(struct file *file, int cmd, struct file_lock *fl);
-extern void ceph_count_locks(struct inode *inode, int *p_num, int *f_num);
-extern int ceph_encode_locks(struct inode *i, struct ceph_pagelist *p,
-			     int p_locks, int f_locks);
-extern int lock_to_ceph_filelock(struct file_lock *fl, struct ceph_filelock *c);
-
-/* debugfs.c */
-extern int ceph_fs_debugfs_init(struct ceph_fs_client *client);
-extern void ceph_fs_debugfs_cleanup(struct ceph_fs_client *client);
-
-#endif /* _FS_CEPH_SUPER_H */