staging/lustre/llite: remove dead code

In llite remove unused declarations, parameters, types, and unused,
get-only, or set-only structure members. Add static and const
qualifiers to declarations where possible.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Reviewed-on: http://review.whamcloud.com/9767
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

21 files changed, 125 insertions, 335 deletions

diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
index 12812fcc70b1..dc24cfa58037 100644
--- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
+++ b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
@@ -63,7 +63,7 @@
 
 #include "../llite/llite_internal.h"
 
-const struct cl_req_operations ccc_req_ops;
+static const struct cl_req_operations ccc_req_ops;
 
 /*
  * ccc_ prefix stands for "Common Client Code".
@@ -962,7 +962,7 @@ void ccc_req_attr_set(const struct lu_env *env,
 	       JOBSTATS_JOBID_SIZE);
 }
 
-const struct cl_req_operations ccc_req_ops = {
+static const struct cl_req_operations ccc_req_ops = {
 	.cro_attr_set   = ccc_req_attr_set,
 	.cro_completion = ccc_req_completion
 };
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
index 8b5508086174..7d520d8f4a69 100644
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ b/drivers/staging/lustre/lustre/llite/dcache.c
@@ -69,8 +69,7 @@ static void ll_release(struct dentry *de)
 		ll_intent_release(lld->lld_it);
 		OBD_FREE(lld->lld_it, sizeof(*lld->lld_it));
 	}
-	LASSERT(lld->lld_cwd_count == 0);
-	LASSERT(lld->lld_mnt_count == 0);
+
 	de->d_fsdata = NULL;
 	call_rcu(&lld->lld_rcu_head, free_dentry_data);
 }
@@ -82,8 +81,9 @@ static void ll_release(struct dentry *de)
  * an AST before calling d_revalidate_it().  The dentry still exists (marked
  * INVALID) so d_lookup() matches it, but we have no lock on it (so
  * lock_match() fails) and we spin around real_lookup(). */
-int ll_dcompare(const struct dentry *parent, const struct dentry *dentry,
-		unsigned int len, const char *str, const struct qstr *name)
+static int ll_dcompare(const struct dentry *parent, const struct dentry *dentry,
+		       unsigned int len, const char *str,
+		       const struct qstr *name)
 {
 	if (len != name->len)
 		return 1;
@@ -238,7 +238,8 @@ void ll_intent_release(struct lookup_intent *it)
 	ll_intent_drop_lock(it);
 	/* We are still holding extra reference on a request, need to free it */
 	if (it_disposition(it, DISP_ENQ_OPEN_REF))
-		 ptlrpc_req_finished(it->d.lustre.it_data); /* ll_file_open */
+		ptlrpc_req_finished(it->d.lustre.it_data); /* ll_file_open */
+
 	if (it_disposition(it, DISP_ENQ_CREATE_REF)) /* create rec */
 		ptlrpc_req_finished(it->d.lustre.it_data);
 
@@ -316,15 +317,6 @@ void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry)
 	}
 }
 
-void ll_frob_intent(struct lookup_intent **itp, struct lookup_intent *deft)
-{
-	struct lookup_intent *it = *itp;
-
-	if (!it || it->it_op == IT_GETXATTR)
-		it = *itp = deft;
-
-}
-
 static int ll_revalidate_dentry(struct dentry *dentry,
 				unsigned int lookup_flags)
 {
@@ -356,7 +348,7 @@ static int ll_revalidate_dentry(struct dentry *dentry,
 /*
  * Always trust cached dentries. Update statahead window if necessary.
  */
-int ll_revalidate_nd(struct dentry *dentry, unsigned int flags)
+static int ll_revalidate_nd(struct dentry *dentry, unsigned int flags)
 {
 	int rc;
 
@@ -368,7 +360,7 @@ int ll_revalidate_nd(struct dentry *dentry, unsigned int flags)
 }
 
 
-void ll_d_iput(struct dentry *de, struct inode *inode)
+static void ll_d_iput(struct dentry *de, struct inode *inode)
 {
 	LASSERT(inode);
 	if (!find_cbdata(inode))
@@ -376,7 +368,7 @@ void ll_d_iput(struct dentry *de, struct inode *inode)
 	iput(inode);
 }
 
-struct dentry_operations ll_d_ops = {
+const struct dentry_operations ll_d_ops = {
 	.d_revalidate = ll_revalidate_nd,
 	.d_release = ll_release,
 	.d_delete  = ll_ddelete,
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index f7d306520123..ae6f61aa4da6 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -632,7 +632,7 @@ out:
 	return rc;
 }
 
-int ll_send_mgc_param(struct obd_export *mgc, char *string)
+static int ll_send_mgc_param(struct obd_export *mgc, char *string)
 {
 	struct mgs_send_param *msp;
 	int rc = 0;
@@ -1964,17 +1964,17 @@ out:
 	return ret;
 }
 
-int ll_dir_open(struct inode *inode, struct file *file)
+static int ll_dir_open(struct inode *inode, struct file *file)
 {
 	return ll_file_open(inode, file);
 }
 
-int ll_dir_release(struct inode *inode, struct file *file)
+static int ll_dir_release(struct inode *inode, struct file *file)
 {
 	return ll_file_release(inode, file);
 }
 
-struct file_operations ll_dir_operations = {
+const struct file_operations ll_dir_operations = {
 	.llseek   = ll_dir_seek,
 	.open     = ll_dir_open,
 	.release  = ll_dir_release,
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index e3bc2b0173ca..4d8f6a0144bb 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -50,7 +50,17 @@
 
 #include "cl_object.h"
 
-struct ll_file_data *ll_file_data_get(void)
+static int
+ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
+
+static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+			  bool *lease_broken);
+
+static enum llioc_iter
+ll_iocontrol_call(struct inode *inode, struct file *file,
+		  unsigned int cmd, unsigned long arg, int *rcp);
+
+static struct ll_file_data *ll_file_data_get(void)
 {
 	struct ll_file_data *fd;
 
@@ -247,8 +257,8 @@ int ll_md_real_close(struct inode *inode, fmode_t fmode)
 	return rc;
 }
 
-int ll_md_close(struct obd_export *md_exp, struct inode *inode,
-		struct file *file)
+static int ll_md_close(struct obd_export *md_exp, struct inode *inode,
+		       struct file *file)
 {
 	struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
 	struct ll_inode_info *lli = ll_i2info(inode);
@@ -482,8 +492,8 @@ static int ll_och_fill(struct obd_export *md_exp, struct lookup_intent *it,
 	return md_set_open_replay_data(md_exp, och, it);
 }
 
-int ll_local_open(struct file *file, struct lookup_intent *it,
-		  struct ll_file_data *fd, struct obd_client_handle *och)
+static int ll_local_open(struct file *file, struct lookup_intent *it,
+			 struct ll_file_data *fd, struct obd_client_handle *och)
 {
 	struct inode *inode = file->f_dentry->d_inode;
 	struct ll_inode_info *lli = ll_i2info(inode);
@@ -733,8 +743,9 @@ static int ll_md_blocking_lease_ast(struct ldlm_lock *lock,
 /**
  * Acquire a lease and open the file.
  */
-struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file,
-					fmode_t fmode, __u64 open_flags)
+static struct obd_client_handle *
+ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode,
+	      __u64 open_flags)
 {
 	struct lookup_intent it = { .it_op = IT_OPEN };
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
@@ -862,14 +873,13 @@ out:
 	OBD_FREE_PTR(och);
 	return ERR_PTR(rc);
 }
-EXPORT_SYMBOL(ll_lease_open);
 
 /**
  * Release lease and close the file.
  * It will check if the lease has ever broken.
  */
-int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
-			bool *lease_broken)
+static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+			  bool *lease_broken)
 {
 	struct ldlm_lock *lock;
 	bool cancelled = true;
@@ -895,7 +905,6 @@ int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
 				       NULL);
 	return rc;
 }
-EXPORT_SYMBOL(ll_lease_close);
 
 /* Fills the obdo with the attributes for the lsm */
 static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
@@ -1590,7 +1599,8 @@ static int ll_lov_getstripe(struct inode *inode, unsigned long arg)
 	return rc;
 }
 
-int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
+static int
+ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
 {
 	struct ll_inode_info   *lli = ll_i2info(inode);
 	struct ll_file_data    *fd = LUSTRE_FPRIVATE(file);
@@ -1710,8 +1720,8 @@ out:
  * Get size for inode for which FIEMAP mapping is requested.
  * Make the FIEMAP get_info call and returns the result.
  */
-int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
-	      int num_bytes)
+static int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
+			int num_bytes)
 {
 	struct obd_export *exp = ll_i2dtexp(inode);
 	struct lov_stripe_md *lsm = NULL;
@@ -2190,7 +2200,8 @@ out:
 	return rc;
 }
 
-long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long
+ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct inode		*inode = file->f_dentry->d_inode;
 	struct ll_file_data	*fd = LUSTRE_FPRIVATE(file);
@@ -2509,7 +2520,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 }
 
 
-loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
+static loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
 {
 	struct inode *inode = file->f_dentry->d_inode;
 	loff_t retval, eof = 0;
@@ -2533,7 +2544,7 @@ loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
 	return retval;
 }
 
-int ll_flush(struct file *file, fl_owner_t id)
+static int ll_flush(struct file *file, fl_owner_t id)
 {
 	struct inode *inode = file->f_dentry->d_inode;
 	struct ll_inode_info *lli = ll_i2info(inode);
@@ -2670,7 +2681,8 @@ int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	return rc;
 }
 
-int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
+static int
+ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
 {
 	struct inode *inode = file->f_dentry->d_inode;
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
@@ -2799,7 +2811,8 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
 	return rc;
 }
 
-int ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
+static int
+ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
 {
 	return -ENOSYS;
 }
@@ -2891,8 +2904,7 @@ static int ll_inode_revalidate_fini(struct inode *inode, int rc)
 	return rc;
 }
 
-int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
-			     __u64 ibits)
+static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 {
 	struct inode *inode = dentry->d_inode;
 	struct ptlrpc_request *req = NULL;
@@ -2987,13 +2999,12 @@ out:
 	return rc;
 }
 
-int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
-			   __u64 ibits)
+static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 {
 	struct inode *inode = dentry->d_inode;
 	int rc;
 
-	rc = __ll_inode_revalidate_it(dentry, it, ibits);
+	rc = __ll_inode_revalidate(dentry, ibits);
 	if (rc != 0)
 		return rc;
 
@@ -3016,16 +3027,15 @@ int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
 	return rc;
 }
 
-int ll_getattr_it(struct vfsmount *mnt, struct dentry *de,
-		  struct lookup_intent *it, struct kstat *stat)
+int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
 {
 	struct inode *inode = de->d_inode;
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
 	struct ll_inode_info *lli = ll_i2info(inode);
 	int res = 0;
 
-	res = ll_inode_revalidate_it(de, it, MDS_INODELOCK_UPDATE |
-					     MDS_INODELOCK_LOOKUP);
+	res = ll_inode_revalidate(de, MDS_INODELOCK_UPDATE |
+				      MDS_INODELOCK_LOOKUP);
 	ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1);
 
 	if (res)
@@ -3051,15 +3061,9 @@ int ll_getattr_it(struct vfsmount *mnt, struct dentry *de,
 
 	return 0;
 }
-int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
-{
-	struct lookup_intent it = { .it_op = IT_GETATTR };
-
-	return ll_getattr_it(mnt, de, &it, stat);
-}
 
-int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
-		__u64 start, __u64 len)
+static int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+		     __u64 start, __u64 len)
 {
 	int rc;
 	size_t num_bytes;
@@ -3091,7 +3095,7 @@ int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 	return rc;
 }
 
-struct posix_acl * ll_get_acl(struct inode *inode, int type)
+struct posix_acl *ll_get_acl(struct inode *inode, int type)
 {
 	struct ll_inode_info *lli = ll_i2info(inode);
 	struct posix_acl *acl = NULL;
@@ -3118,10 +3122,8 @@ int ll_inode_permission(struct inode *inode, int mask)
 	* need to do it before permission check. */
 
 	if (inode == inode->i_sb->s_root->d_inode) {
-		struct lookup_intent it = { .it_op = IT_LOOKUP };
-
-		rc = __ll_inode_revalidate_it(inode->i_sb->s_root, &it,
-					      MDS_INODELOCK_LOOKUP);
+		rc = __ll_inode_revalidate(inode->i_sb->s_root,
+					   MDS_INODELOCK_LOOKUP);
 		if (rc)
 			return rc;
 	}
@@ -3273,8 +3275,9 @@ void ll_iocontrol_unregister(void *magic)
 EXPORT_SYMBOL(ll_iocontrol_register);
 EXPORT_SYMBOL(ll_iocontrol_unregister);
 
-enum llioc_iter ll_iocontrol_call(struct inode *inode, struct file *file,
-			unsigned int cmd, unsigned long arg, int *rcp)
+static enum llioc_iter
+ll_iocontrol_call(struct inode *inode, struct file *file,
+		  unsigned int cmd, unsigned long arg, int *rcp)
 {
 	enum llioc_iter ret = LLIOC_CONT;
 	struct llioc_data *data;
diff --git a/drivers/staging/lustre/lustre/llite/llite_capa.c b/drivers/staging/lustre/lustre/llite/llite_capa.c
index edd512b20ee3..d06d0b1ab08a 100644
--- a/drivers/staging/lustre/lustre/llite/llite_capa.c
+++ b/drivers/staging/lustre/lustre/llite/llite_capa.c
@@ -68,6 +68,8 @@ static unsigned long long ll_capa_renewal_noent = 0;
 static unsigned long long ll_capa_renewal_failed = 0;
 static unsigned long long ll_capa_renewal_retries = 0;
 
+static int ll_update_capa(struct obd_capa *ocapa, struct lustre_capa *capa);
+
 static inline void update_capa_timer(struct obd_capa *ocapa, cfs_time_t expiry)
 {
 	if (cfs_time_before(expiry, ll_capa_timer.expires) ||
@@ -515,7 +517,7 @@ static inline void delay_capa_renew(struct obd_capa *oc, cfs_time_t delay)
 	oc->c_expiry = cfs_time_add(oc->c_expiry, cfs_time_seconds(delay));
 }
 
-int ll_update_capa(struct obd_capa *ocapa, struct lustre_capa *capa)
+static int ll_update_capa(struct obd_capa *ocapa, struct lustre_capa *capa)
 {
 	struct inode *inode = ocapa->u.cli.inode;
 	int rc = 0;
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index f4b15bf84236..dde7632ba01f 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -71,10 +71,6 @@
 #define LUSTRE_FPRIVATE(file) ((file)->private_data)
 
 struct ll_dentry_data {
-	int				lld_cwd_count;
-	int				lld_mnt_count;
-	struct obd_client_handle	lld_cwd_och;
-	struct obd_client_handle	lld_mnt_och;
 	struct lookup_intent		*lld_it;
 	unsigned int			lld_sa_generation;
 	unsigned int			lld_invalid:1;
@@ -83,8 +79,6 @@ struct ll_dentry_data {
 
 #define ll_d2d(de) ((struct ll_dentry_data*)((de)->d_fsdata))
 
-extern struct file_operations ll_pgcache_seq_fops;
-
 #define LLI_INODE_MAGIC		 0x111d0de5
 #define LLI_INODE_DEAD		  0xdeadd00d
 
@@ -120,16 +114,12 @@ enum lli_flags {
 	/* Sizeon-on-MDS attributes are changed. An attribute update needs to
 	 * be sent to MDS. */
 	LLIF_SOM_DIRTY	  = (1 << 3),
-	/* File is contented */
-	LLIF_CONTENDED	  = (1 << 4),
-	/* Truncate uses server lock for this file */
-	LLIF_SRVLOCK	    = (1 << 5),
 	/* File data is modified. */
-	LLIF_DATA_MODIFIED      = (1 << 6),
+	LLIF_DATA_MODIFIED      = (1 << 4),
 	/* File is being restored */
-	LLIF_FILE_RESTORING	= (1 << 7),
+	LLIF_FILE_RESTORING	= (1 << 5),
 	/* Xattr cache is attached to the file */
-	LLIF_XATTR_CACHE	= (1 << 8),
+	LLIF_XATTR_CACHE	= (1 << 6),
 };
 
 struct ll_inode_info {
@@ -194,7 +184,6 @@ struct ll_inode_info {
 			 * cleanup the dir readahead. */
 			void			   *d_opendir_key;
 			struct ll_statahead_info       *d_sai;
-			struct posix_acl	       *d_def_acl;
 			/* protect statahead stuff. */
 			spinlock_t			d_sa_lock;
 			/* "opendir_pid" is the token when lookup/revalid
@@ -205,7 +194,6 @@ struct ll_inode_info {
 #define lli_readdir_mutex       u.d.d_readdir_mutex
 #define lli_opendir_key	 u.d.d_opendir_key
 #define lli_sai		 u.d.d_sai
-#define lli_def_acl	     u.d.d_def_acl
 #define lli_sa_lock	     u.d.d_sa_lock
 #define lli_opendir_pid	 u.d.d_opendir_pid
 
@@ -232,11 +220,6 @@ struct ll_inode_info {
 			/* for writepage() only to communicate to fsync */
 			int				f_async_rc;
 
-			/* volatile file criteria is based on file name, this
-			 * flag is used to keep the test result, so the strcmp
-			 * is done only once
-			 */
-			bool				f_volatile;
 			/*
 			 * whenever a process try to read/write the file, the
 			 * jobid of the process will be saved here, and it'll
@@ -259,7 +242,6 @@ struct ll_inode_info {
 #define lli_agl_index		u.f.f_agl_index
 #define lli_async_rc		u.f.f_async_rc
 #define lli_jobid		u.f.f_jobid
-#define lli_volatile		u.f.f_volatile
 
 	} u;
 
@@ -459,10 +441,6 @@ enum stats_track_type {
 	"xattr",	\
 }
 
-/* default value for ll_sb_info->contention_time */
-#define SBI_DEFAULT_CONTENTION_SECONDS     60
-/* default value for lockless_truncate_enable */
-#define SBI_DEFAULT_LOCKLESS_TRUNCATE_ENABLE 1
 #define RCE_HASHES      32
 
 struct rmtacl_ctl_entry {
@@ -673,12 +651,6 @@ static inline struct inode *ll_info2i(struct ll_inode_info *lli)
 	return &lli->lli_vfs_inode;
 }
 
-struct it_cb_data {
-	struct inode  *icbd_parent;
-	struct dentry **icbd_childp;
-	obd_id	hash;
-};
-
 __u32 ll_i2suppgid(struct inode *i);
 void ll_i2gids(__u32 *suppgids, struct inode *i1,struct inode *i2);
 
@@ -686,21 +658,13 @@ static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
 {
 #if BITS_PER_LONG == 32
 	return 1;
+#elif defined(CONFIG_COMPAT)
+	return unlikely(is_compat_task() || (sbi->ll_flags & LL_SBI_32BIT_API));
 #else
-	return unlikely(
-#ifdef CONFIG_COMPAT
-		is_compat_task() ||
-#endif
-		(sbi->ll_flags & LL_SBI_32BIT_API)
-	);
+	return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
 #endif
 }
 
-#define LLAP_MAGIC 98764321
-
-extern struct kmem_cache *ll_async_page_slab;
-extern size_t ll_async_page_slab_size;
-
 void ll_ra_read_in(struct file *f, struct ll_ra_read *rar);
 void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar);
 struct ll_ra_read *ll_ra_read_get(struct file *f);
@@ -733,14 +697,16 @@ static inline void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
 
 /* llite/dir.c */
 void ll_release_page(struct page *page, int remove);
-extern struct file_operations ll_dir_operations;
-extern struct inode_operations ll_dir_inode_operations;
+extern const struct file_operations ll_dir_operations;
+extern const struct inode_operations ll_dir_inode_operations;
 struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
 			     struct ll_dir_chain *chain);
 int ll_dir_read(struct inode *inode, struct dir_context *ctx);
 
 int ll_get_mdt_idx(struct inode *inode);
 /* llite/namei.c */
+extern const struct inode_operations ll_special_inode_operations;
+
 int ll_objects_destroy(struct ptlrpc_request *request,
 		       struct inode *dir);
 struct inode *ll_iget(struct super_block *sb, ino_t hash,
@@ -755,43 +721,34 @@ int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
 int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to);
 int ll_writepage(struct page *page, struct writeback_control *wbc);
 int ll_writepages(struct address_space *, struct writeback_control *wbc);
-void ll_removepage(struct page *page);
 int ll_readpage(struct file *file, struct page *page);
 void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
-int ll_file_punch(struct inode *, loff_t, int);
-ssize_t ll_file_lockless_io(struct file *, char *, size_t, loff_t *, int);
-void ll_clear_file_contended(struct inode*);
-int ll_sync_page_range(struct inode *, struct address_space *, loff_t, size_t);
 int ll_readahead(const struct lu_env *env, struct cl_io *io,
 		 struct ll_readahead_state *ras, struct address_space *mapping,
 		 struct cl_page_list *queue, int flags);
 
+#ifndef MS_HAS_NEW_AOPS
+extern const struct address_space_operations ll_aops;
+#else
+extern const struct address_space_operations_ext ll_aops;
+#endif
+
 /* llite/file.c */
 extern struct file_operations ll_file_operations;
 extern struct file_operations ll_file_operations_flock;
 extern struct file_operations ll_file_operations_noflock;
 extern struct inode_operations ll_file_inode_operations;
-extern int ll_inode_revalidate_it(struct dentry *, struct lookup_intent *,
-				  __u64);
 extern int ll_have_md_lock(struct inode *inode, __u64 *bits,
 			   ldlm_mode_t l_req_mode);
 extern ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
 				   struct lustre_handle *lockh, __u64 flags,
 				   ldlm_mode_t mode);
-int __ll_inode_revalidate_it(struct dentry *, struct lookup_intent *,
-			     __u64 bits);
-int ll_revalidate_nd(struct dentry *dentry, unsigned int flags);
 int ll_file_open(struct inode *inode, struct file *file);
 int ll_file_release(struct inode *inode, struct file *file);
 int ll_glimpse_ioctl(struct ll_sb_info *sbi,
 		     struct lov_stripe_md *lsm, lstat_t *st);
 void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch);
-int ll_local_open(struct file *file,
-		  struct lookup_intent *it, struct ll_file_data *fd,
-		  struct obd_client_handle *och);
 int ll_release_openhandle(struct dentry *, struct lookup_intent *);
-int ll_md_close(struct obd_export *md_exp, struct inode *inode,
-		struct file *file);
 int ll_md_real_close(struct inode *inode, fmode_t fmode);
 void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
 		      struct obd_client_handle **och, unsigned long flags);
@@ -799,15 +756,10 @@ void ll_done_writing_attr(struct inode *inode, struct md_op_data *op_data);
 int ll_som_update(struct inode *inode, struct md_op_data *op_data);
 int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
 		     __u64 ioepoch, int sync);
-int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
-		  struct md_open_data **mod);
 void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
 			  struct lustre_handle *fh);
-int ll_getattr_it(struct vfsmount *mnt, struct dentry *de,
-	       struct lookup_intent *it, struct kstat *stat);
 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
-struct ll_file_data *ll_file_data_get(void);
-struct posix_acl * ll_get_acl(struct inode *inode, int type);
+struct posix_acl *ll_get_acl(struct inode *inode, int type);
 
 int ll_inode_permission(struct inode *inode, int mask);
 
@@ -822,44 +774,30 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
 int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
 		     int *lmm_size, struct ptlrpc_request **request);
 int ll_fsync(struct file *file, loff_t start, loff_t end, int data);
-int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
-	      int num_bytes);
 int ll_merge_lvb(const struct lu_env *env, struct inode *inode);
-int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg);
-int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
 int ll_fid2path(struct inode *inode, void *arg);
 int ll_data_version(struct inode *inode, __u64 *data_version, int extent_lock);
 int ll_hsm_release(struct inode *inode);
 
-struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file,
-					fmode_t mode, __u64 flags);
-int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
-		   bool *lease_broken);
-
 /* llite/dcache.c */
 
 int ll_d_init(struct dentry *de);
-extern struct dentry_operations ll_d_ops;
+extern const struct dentry_operations ll_d_ops;
 void ll_intent_drop_lock(struct lookup_intent *);
 void ll_intent_release(struct lookup_intent *);
 void ll_invalidate_aliases(struct inode *);
-void ll_frob_intent(struct lookup_intent **itp, struct lookup_intent *deft);
 void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry);
-int ll_dcompare(const struct dentry *parent, const struct dentry *dentry,
-		unsigned int len, const char *str, const struct qstr *d_name);
 int ll_revalidate_it_finish(struct ptlrpc_request *request,
 			    struct lookup_intent *it, struct dentry *de);
 
 /* llite/llite_lib.c */
 extern struct super_operations lustre_super_operations;
 
-char *ll_read_opt(const char *opt, char *data);
 void ll_lli_init(struct ll_inode_info *lli);
 int ll_fill_super(struct super_block *sb, struct vfsmount *mnt);
 void ll_put_super(struct super_block *sb);
 void ll_kill_super(struct super_block *sb);
 struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock);
-struct inode *ll_inode_from_lock(struct ldlm_lock *lock);
 void ll_clear_inode(struct inode *inode);
 int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import);
 int ll_setattr(struct dentry *de, struct iattr *attr);
@@ -879,7 +817,6 @@ void ll_dirty_page_discard_warn(struct page *page, int ioret);
 int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
 		  struct super_block *, struct lookup_intent *);
 void lustre_dump_dentry(struct dentry *, int recur);
-void lustre_dump_inode(struct inode *);
 int ll_obd_statfs(struct inode *inode, void *arg);
 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *max_mdsize);
 int ll_get_default_mdsize(struct ll_sb_info *sbi, int *default_mdsize);
@@ -901,15 +838,6 @@ void get_uuid2fsid(const char *name, int len, __kernel_fsid_t *fsid);
 struct inode *search_inode_for_lustre(struct super_block *sb,
 				      const struct lu_fid *fid);
 
-/* llite/special.c */
-extern struct inode_operations ll_special_inode_operations;
-extern struct file_operations ll_special_chr_inode_fops;
-extern struct file_operations ll_special_chr_file_fops;
-extern struct file_operations ll_special_blk_inode_fops;
-extern struct file_operations ll_special_fifo_inode_fops;
-extern struct file_operations ll_special_fifo_file_fops;
-extern struct file_operations ll_special_sock_inode_fops;
-
 /* llite/symlink.c */
 extern struct inode_operations ll_fast_symlink_inode_operations;
 
@@ -977,11 +905,6 @@ struct vvp_io {
 	 * Set when cui_bead has been initialized.
 	 */
 	int		  cui_ra_window_set;
-	/**
-	 * Partially truncated page, that vvp_io_trunc_start() keeps locked
-	 * across truncate.
-	 */
-	struct cl_page      *cui_partpage;
 };
 
 /**
@@ -1010,12 +933,9 @@ struct ll_cl_context {
 	struct cl_page *lcc_page;
 	struct lu_env  *lcc_env;
 	int	     lcc_refcheck;
-	int	     lcc_created;
 };
 
 struct vvp_thread_info {
-	struct ost_lvb       vti_lvb;
-	struct cl_2queue     vti_queue;
 	struct iovec	 vti_local_iov;
 	struct vvp_io_args   vti_args;
 	struct ra_io_arg     vti_ria;
@@ -1062,25 +982,17 @@ static inline struct vvp_io *vvp_env_io(const struct lu_env *env)
 	return &vvp_env_session(env)->vs_ios;
 }
 
+int vvp_global_init(void);
+void vvp_global_fini(void);
+
 void ll_queue_done_writing(struct inode *inode, unsigned long flags);
 void ll_close_thread_shutdown(struct ll_close_queue *lcq);
 int ll_close_thread_start(struct ll_close_queue **lcq_ret);
 
 /* llite/llite_mmap.c */
-typedef struct rb_root  rb_root_t;
-typedef struct rb_node  rb_node_t;
-
-struct ll_lock_tree_node;
-struct ll_lock_tree {
-	rb_root_t		       lt_root;
-	struct list_head		      lt_locked_list;
-	struct ll_file_data	    *lt_fd;
-};
 
 int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last);
 int ll_file_mmap(struct file * file, struct vm_area_struct * vma);
-struct ll_lock_tree_node * ll_node_from_inode(struct inode *inode, __u64 start,
-					      __u64 end, ldlm_mode_t mode);
 void policy_from_vma(ldlm_policy_data_t *policy,
 		struct vm_area_struct *vma, unsigned long addr, size_t count);
 struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
@@ -1164,7 +1076,6 @@ int ll_removexattr(struct dentry *dentry, const char *name);
 extern struct kmem_cache *ll_remote_perm_cachep;
 extern struct kmem_cache *ll_rmtperm_hash_cachep;
 
-struct hlist_head *alloc_rmtperm_hash(void);
 void free_rmtperm_hash(struct hlist_head *hash);
 int ll_update_remote_perm(struct inode *inode, struct mdt_remote_perm *perm);
 int lustre_check_remote_perm(struct inode *inode, int mask);
@@ -1177,7 +1088,6 @@ void ll_capa_thread_stop(void);
 void ll_capa_timer_callback(unsigned long unused);
 
 struct obd_capa *ll_add_capa(struct inode *inode, struct obd_capa *ocapa);
-int ll_update_capa(struct obd_capa *ocapa, struct lustre_capa *capa);
 
 void ll_capa_open(struct inode *inode);
 void ll_capa_close(struct inode *inode);
@@ -1197,14 +1107,12 @@ extern struct lu_device_type vvp_device_type;
  */
 int cl_sb_init(struct super_block *sb);
 int cl_sb_fini(struct super_block *sb);
-enum cl_lock_mode  vvp_mode_from_vma(struct vm_area_struct *vma);
 void ll_io_init(struct cl_io *io, const struct file *file, int write);
 
 void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 		struct ll_readahead_state *ras, unsigned long index,
 		unsigned hit);
 void ll_ra_count_put(struct ll_sb_info *sbi, unsigned long len);
-int ll_is_file_contended(struct file *file);
 void ll_ra_stats_inc(struct address_space *mapping, enum ra_stat which);
 
 /* llite/llite_rmtacl.c */
@@ -1277,7 +1185,6 @@ struct ll_statahead_info {
 	unsigned int	    sai_skip_hidden;/* skipped hidden dentry count */
 	unsigned int	    sai_ls_all:1,   /* "ls -al", do stat-ahead for
 						 * hidden entries */
-				sai_in_readpage:1,/* statahead is in readdir()*/
 				sai_agl_valid:1;/* AGL is valid for the dir */
 	wait_queue_head_t	     sai_waitq;      /* stat-ahead wait queue */
 	struct ptlrpc_thread    sai_thread;     /* stat-ahead thread */
@@ -1402,9 +1309,6 @@ typedef enum llioc_iter (*llioc_callback_t)(struct inode *inode,
 		struct file *file, unsigned int cmd, unsigned long arg,
 		void *magic, int *rcp);
 
-enum llioc_iter ll_iocontrol_call(struct inode *inode, struct file *file,
-		unsigned int cmd, unsigned long arg, int *rcp);
-
 /* export functions */
 /* Register ioctl block dynamatically for a regular file.
  *
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index dbb14135b47f..7372986ac145 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -58,14 +58,8 @@
 struct kmem_cache *ll_file_data_slab;
 struct proc_dir_entry *proc_lustre_fs_root;
 
-LIST_HEAD(ll_super_blocks);
-DEFINE_SPINLOCK(ll_sb_lock);
-
-#ifndef MS_HAS_NEW_AOPS
-extern struct address_space_operations ll_aops;
-#else
-extern struct address_space_operations_ext ll_aops;
-#endif
+static LIST_HEAD(ll_super_blocks);
+static DEFINE_SPINLOCK(ll_sb_lock);
 
 #ifndef log2
 #define log2(n) ffz(~(n))
@@ -143,7 +137,7 @@ static struct ll_sb_info *ll_init_sbi(void)
 	return sbi;
 }
 
-void ll_free_sbi(struct super_block *sb)
+static void ll_free_sbi(struct super_block *sb)
 {
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
 
@@ -673,7 +667,7 @@ int ll_get_default_cookiesize(struct ll_sb_info *sbi, int *lmmsize)
 	return rc;
 }
 
-void ll_dump_inode(struct inode *inode)
+static void ll_dump_inode(struct inode *inode)
 {
 	struct ll_d_hlist_node *tmp;
 	int dentry_count = 0;
@@ -716,7 +710,7 @@ void lustre_dump_dentry(struct dentry *dentry, int recur)
 	}
 }
 
-void client_common_put_super(struct super_block *sb)
+static void client_common_put_super(struct super_block *sb)
 {
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
 
@@ -765,30 +759,6 @@ void ll_kill_super(struct super_block *sb)
 	}
 }
 
-char *ll_read_opt(const char *opt, char *data)
-{
-	char *value;
-	char *retval;
-
-	CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
-	if (strncmp(opt, data, strlen(opt)))
-		return NULL;
-	value = strchr(data, '=');
-	if (value == NULL)
-		return NULL;
-
-	value++;
-	OBD_ALLOC(retval, strlen(value) + 1);
-	if (!retval) {
-		CERROR("out of memory!\n");
-		return NULL;
-	}
-
-	memcpy(retval, value, strlen(value)+1);
-	CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
-	return retval;
-}
-
 static inline int ll_set_opt(const char *opt, char *data, int fl)
 {
 	if (strncmp(opt, data, strlen(opt)) != 0)
@@ -978,7 +948,6 @@ void ll_lli_init(struct ll_inode_info *lli)
 		mutex_init(&lli->lli_readdir_mutex);
 		lli->lli_opendir_key = NULL;
 		lli->lli_sai = NULL;
-		lli->lli_def_acl = NULL;
 		spin_lock_init(&lli->lli_sa_lock);
 		lli->lli_opendir_pid = 0;
 	} else {
@@ -991,7 +960,6 @@ void ll_lli_init(struct ll_inode_info *lli)
 		INIT_LIST_HEAD(&lli->lli_agl_list);
 		lli->lli_agl_index = 0;
 		lli->lli_async_rc = 0;
-		lli->lli_volatile = false;
 	}
 	mutex_init(&lli->lli_layout_mutex);
 }
@@ -1190,28 +1158,6 @@ struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
 	return inode;
 }
 
-struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
-{
-	struct inode *inode = NULL;
-	/* NOTE: we depend on atomic igrab() -bzzz */
-	lock_res_and_lock(lock);
-	if (lock->l_ast_data) {
-		struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
-		if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
-			inode = igrab(lock->l_ast_data);
-		} else {
-			inode = lock->l_ast_data;
-			LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ?  D_INFO :
-					 D_WARNING, lock, "l_ast_data %p is "
-					 "bogus: magic %08x", lock->l_ast_data,
-					 lli->lli_inode_magic);
-			inode = NULL;
-		}
-	}
-	unlock_res_and_lock(lock);
-	return inode;
-}
-
 void ll_clear_inode(struct inode *inode)
 {
 	struct ll_inode_info *lli = ll_i2info(inode);
diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c
index 90b2c0d275f9..426c73961665 100644
--- a/drivers/staging/lustre/lustre/llite/llite_mmap.c
+++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c
@@ -51,10 +51,7 @@
 #include "llite_internal.h"
 #include <linux/lustre_compat25.h>
 
-struct page *ll_nopage(struct vm_area_struct *vma, unsigned long address,
-		       int *type);
-
-static struct vm_operations_struct ll_file_vm_ops;
+static const struct vm_operations_struct ll_file_vm_ops;
 
 void policy_from_vma(ldlm_policy_data_t *policy,
 			    struct vm_area_struct *vma, unsigned long addr,
@@ -97,10 +94,10 @@ struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
  * \retval EINVAL if env can't allocated
  * \return other error codes from cl_io_init.
  */
-struct cl_io *ll_fault_io_init(struct vm_area_struct *vma,
-			       struct lu_env **env_ret,
-			       struct cl_env_nest *nest,
-			       pgoff_t index, unsigned long *ra_flags)
+static struct cl_io *
+ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret,
+		 struct cl_env_nest *nest, pgoff_t index,
+		 unsigned long *ra_flags)
 {
 	struct file	       *file = vma->vm_file;
 	struct inode	       *inode = file->f_dentry->d_inode;
@@ -446,14 +443,6 @@ static void ll_vm_close(struct vm_area_struct *vma)
 	LASSERT(atomic_read(&vob->cob_mmap_cnt) >= 0);
 }
 
-
-/* return the user space pointer that maps to a file offset via a vma */
-static inline unsigned long file_to_user(struct vm_area_struct *vma, __u64 byte)
-{
-	return vma->vm_start + (byte - ((__u64)vma->vm_pgoff << PAGE_CACHE_SHIFT));
-
-}
-
 /* XXX put nice comment here.  talk about __free_pte -> dirty pages and
  * nopage's reference passing to the pte */
 int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last)
@@ -470,7 +459,7 @@ int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last)
 	return rc;
 }
 
-static struct vm_operations_struct ll_file_vm_ops = {
+static const struct vm_operations_struct ll_file_vm_ops = {
 	.fault			= ll_fault,
 	.page_mkwrite		= ll_page_mkwrite,
 	.open			= ll_vm_open,
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c
index 437adaff0c0a..b9694b8cb5dd 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -122,9 +122,6 @@ struct lloop_device {
 	loff_t	       lo_offset;
 	loff_t	       lo_sizelimit;
 	int		  lo_flags;
-	int		(*ioctl)(struct lloop_device *, int cmd,
-				    unsigned long arg);
-
 	struct file	 *lo_backing_file;
 	struct block_device *lo_device;
 	unsigned	     lo_blocksize;
@@ -509,7 +506,6 @@ static int loop_set_fd(struct lloop_device *lo, struct file *unused,
 	lo->lo_device = bdev;
 	lo->lo_flags = lo_flags;
 	lo->lo_backing_file = file;
-	lo->ioctl = NULL;
 	lo->lo_sizelimit = 0;
 	lo->old_gfp_mask = mapping_gfp_mask(mapping);
 	mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
@@ -568,7 +564,6 @@ static int loop_clr_fd(struct lloop_device *lo, struct block_device *bdev,
 
 	down(&lo->lo_sem);
 	lo->lo_backing_file = NULL;
-	lo->ioctl = NULL;
 	lo->lo_device = NULL;
 	lo->lo_offset = 0;
 	lo->lo_sizelimit = 0;
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index f291254d0c80..6d70c658294e 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -41,9 +41,9 @@
 #include <obd_support.h>
 
 #include "llite_internal.h"
+#include "vvp_internal.h"
 
 /* /proc/lustre/llite mount point registration */
-extern struct file_operations vvp_dump_pgcache_file_ops;
 static struct file_operations ll_rw_extents_stats_fops;
 static struct file_operations ll_rw_extents_stats_pp_fops;
 static struct file_operations ll_rw_offset_stats_fops;
@@ -837,7 +837,7 @@ static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
 
 #define MAX_STRING_SIZE 128
 
-struct llite_file_opcode {
+static const struct llite_file_opcode {
 	__u32       opcode;
 	__u32       type;
 	const char *opname;
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index 25a6ea580f00..dfa1e745dfd6 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -75,14 +75,6 @@ static int ll_d_mountpoint(struct dentry *dparent, struct dentry *dchild,
 	return mounted;
 }
 
-int ll_unlock(__u32 mode, struct lustre_handle *lockh)
-{
-	ldlm_lock_decref(lockh, mode);
-
-	return 0;
-}
-
-
 /* called from iget5_locked->find_inode() under inode_hash_lock spinlock */
 static int ll_test_inode(struct inode *inode, void *opaque)
 {
@@ -433,12 +425,10 @@ struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de)
 	return de;
 }
 
-int ll_lookup_it_finish(struct ptlrpc_request *request,
-			struct lookup_intent *it, void *data)
+static int ll_lookup_it_finish(struct ptlrpc_request *request,
+			       struct lookup_intent *it,
+			       struct inode *parent, struct dentry **de)
 {
-	struct it_cb_data *icbd = data;
-	struct dentry **de = icbd->icbd_childp;
-	struct inode *parent = icbd->icbd_parent;
 	struct inode *inode = NULL;
 	__u64 bits = 0;
 	int rc;
@@ -513,7 +503,6 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 	struct dentry *save = dentry, *retval;
 	struct ptlrpc_request *req = NULL;
 	struct md_op_data *op_data;
-	struct it_cb_data icbd;
 	__u32 opc;
 	int rc;
 
@@ -527,7 +516,8 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 	if (d_mountpoint(dentry))
 		CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
 
-	ll_frob_intent(&it, &lookup_it);
+	if (it == NULL || it->it_op == IT_GETXATTR)
+		it = &lookup_it;
 
 	if (it->it_op == IT_GETATTR) {
 		rc = ll_statahead_enter(parent, &dentry, 0);
@@ -538,9 +528,6 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 		}
 	}
 
-	icbd.icbd_childp = &dentry;
-	icbd.icbd_parent = parent;
-
 	if (it->it_op & IT_CREAT)
 		opc = LUSTRE_OPC_CREATE;
 	else
@@ -562,7 +549,7 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 	if (rc < 0)
 		GOTO(out, retval = ERR_PTR(rc));
 
-	rc = ll_lookup_it_finish(req, it, &icbd);
+	rc = ll_lookup_it_finish(req, it, parent, &dentry);
 	if (rc != 0) {
 		ll_intent_release(it);
 		GOTO(out, retval = ERR_PTR(rc));
@@ -697,10 +684,7 @@ out_release:
 
 
 /* We depend on "mode" being set with the proper file type/umask by now */
-static struct inode *ll_create_node(struct inode *dir, const char *name,
-				    int namelen, const void *data, int datalen,
-				    int mode, __u64 extra,
-				    struct lookup_intent *it)
+static struct inode *ll_create_node(struct inode *dir, struct lookup_intent *it)
 {
 	struct inode *inode = NULL;
 	struct ptlrpc_request *request = NULL;
@@ -757,14 +741,10 @@ static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
 	if (rc)
 		return rc;
 
-	inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
-			       NULL, 0, mode, 0, it);
+	inode = ll_create_node(dir, it);
 	if (IS_ERR(inode))
 		return PTR_ERR(inode);
 
-	if (filename_is_volatile(dentry->d_name.name, dentry->d_name.len, NULL))
-		ll_i2info(inode)->lli_volatile = true;
-
 	d_instantiate(dentry, inode);
 	return 0;
 }
@@ -1238,7 +1218,7 @@ static int ll_rename(struct inode *old_dir, struct dentry *old_dentry,
 	return err;
 }
 
-struct inode_operations ll_dir_inode_operations = {
+const struct inode_operations ll_dir_inode_operations = {
 	.mknod	      = ll_mknod,
 	.atomic_open	    = ll_atomic_open,
 	.lookup	     = ll_lookup_nd,
@@ -1260,7 +1240,7 @@ struct inode_operations ll_dir_inode_operations = {
 	.get_acl	    = ll_get_acl,
 };
 
-struct inode_operations ll_special_inode_operations = {
+const struct inode_operations ll_special_inode_operations = {
 	.setattr	= ll_setattr,
 	.getattr	= ll_getattr,
 	.permission     = ll_inode_permission,
diff --git a/drivers/staging/lustre/lustre/llite/remote_perm.c b/drivers/staging/lustre/lustre/llite/remote_perm.c
index dedd56ae1e6d..a8b1117b8f60 100644
--- a/drivers/staging/lustre/lustre/llite/remote_perm.c
+++ b/drivers/staging/lustre/lustre/llite/remote_perm.c
@@ -77,7 +77,7 @@ static inline void free_ll_remote_perm(struct ll_remote_perm *lrp)
 	OBD_SLAB_FREE(lrp, ll_remote_perm_cachep, sizeof(*lrp));
 }
 
-struct hlist_head *alloc_rmtperm_hash(void)
+static struct hlist_head *alloc_rmtperm_hash(void)
 {
 	struct hlist_head *hash;
 	int i;
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
index 416f7a094a6d..f0122c568a09 100644
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ b/drivers/staging/lustre/lustre/llite/rw.c
@@ -77,12 +77,6 @@ static void ll_cl_fini(struct ll_cl_context *lcc)
 		cl_page_put(env, page);
 	}
 
-	if (io && lcc->lcc_created) {
-		cl_io_end(env, io);
-		cl_io_unlock(env, io);
-		cl_io_iter_fini(env, io);
-		cl_io_fini(env, io);
-	}
 	cl_env_put(env, &lcc->lcc_refcheck);
 }
 
@@ -167,7 +161,6 @@ static struct ll_cl_context *ll_cl_init(struct file *file,
 			}
 		} else
 			result = io->ci_result;
-		lcc->lcc_created = 1;
 	}
 
 	lcc->lcc_io = io;
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index 7e3e0967993b..b401d36b5739 100644
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -529,9 +529,9 @@ static int ll_write_end(struct file *file, struct address_space *mapping,
 }
 
 #ifdef CONFIG_MIGRATION
-int ll_migratepage(struct address_space *mapping,
-		struct page *newpage, struct page *page
-		, enum migrate_mode mode
+static int ll_migratepage(struct address_space *mapping,
+			 struct page *newpage, struct page *page,
+			 enum migrate_mode mode
 		)
 {
 	/* Always fail page migration until we have a proper implementation */
@@ -540,9 +540,8 @@ int ll_migratepage(struct address_space *mapping,
 #endif
 
 #ifndef MS_HAS_NEW_AOPS
-struct address_space_operations ll_aops = {
-	.readpage       = ll_readpage,
-//	.readpages      = ll_readpages,
+const struct address_space_operations ll_aops = {
+	.readpage	= ll_readpage,
 	.direct_IO      = ll_direct_IO_26,
 	.writepage      = ll_writepage,
 	.writepages     = ll_writepages,
@@ -554,10 +553,9 @@ struct address_space_operations ll_aops = {
 #ifdef CONFIG_MIGRATION
 	.migratepage    = ll_migratepage,
 #endif
-	.bmap	   = NULL
 };
 #else
-struct address_space_operations_ext ll_aops = {
+const struct address_space_operations_ext ll_aops = {
 	.orig_aops.readpage       = ll_readpage,
 //	.orig_aops.readpages      = ll_readpages,
 	.orig_aops.direct_IO      = ll_direct_IO_26,
@@ -571,7 +569,6 @@ struct address_space_operations_ext ll_aops = {
 #ifdef CONFIG_MIGRATION
 	.orig_aops.migratepage    = ll_migratepage,
 #endif
-	.orig_aops.bmap	   = NULL,
 	.write_begin    = ll_write_begin,
 	.write_end      = ll_write_end
 };
diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c
index 51c532756a7c..1b47774d7447 100644
--- a/drivers/staging/lustre/lustre/llite/statahead.c
+++ b/drivers/staging/lustre/lustre/llite/statahead.c
@@ -1230,9 +1230,7 @@ do_it:
 			 */
 			ll_release_page(page, le32_to_cpu(dp->ldp_flags) &
 					      LDF_COLLIDE);
-			sai->sai_in_readpage = 1;
 			page = ll_get_dir_page(dir, pos, &chain);
-			sai->sai_in_readpage = 0;
 		} else {
 			LASSERT(le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
 			ll_release_page(page, 1);
@@ -1563,12 +1561,6 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 			return entry ? 1 : -EAGAIN;
 		}
 
-		/* if statahead is busy in readdir, help it do post-work */
-		while (!ll_sa_entry_stated(entry) &&
-		       sai->sai_in_readpage &&
-		       !sa_received_empty(sai))
-			ll_post_statahead(sai);
-
 		if (!ll_sa_entry_stated(entry)) {
 			sai->sai_index_wait = entry->se_index;
 			lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(30), NULL,
diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c
index 58bb8f21dbe5..951fdb1265b9 100644
--- a/drivers/staging/lustre/lustre/llite/super25.c
+++ b/drivers/staging/lustre/lustre/llite/super25.c
@@ -72,7 +72,7 @@ static void ll_destroy_inode(struct inode *inode)
 	call_rcu(&inode->i_rcu, ll_inode_destroy_callback);
 }
 
-int ll_init_inodecache(void)
+static int ll_init_inodecache(void)
 {
 	ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
 					       sizeof(struct ll_inode_info),
@@ -82,7 +82,7 @@ int ll_init_inodecache(void)
 	return 0;
 }
 
-void ll_destroy_inodecache(void)
+static void ll_destroy_inodecache(void)
 {
 	kmem_cache_destroy(ll_inode_cachep);
 }
@@ -103,9 +103,6 @@ MODULE_ALIAS_FS("lustre");
 
 void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg));
 
-int vvp_global_init(void);
-void vvp_global_fini(void);
-
 static int __init init_lustre_lite(void)
 {
 	int i, rc, seed[2];
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index a9778b874e30..0f68c16abe30 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -43,7 +43,7 @@
 
 #include <obd.h>
 #include <lustre_lite.h>
-
+#include "llite_internal.h"
 #include "vvp_internal.h"
 
 /*****************************************************************************
@@ -57,7 +57,7 @@
  * "llite_" (var. "ll_") prefix.
  */
 
-struct kmem_cache *vvp_thread_kmem;
+static struct kmem_cache *vvp_thread_kmem;
 static struct kmem_cache *vvp_session_kmem;
 static struct lu_kmem_descr vvp_caches[] = {
 	{
@@ -536,7 +536,7 @@ static int vvp_dump_pgcache_seq_open(struct inode *inode, struct file *filp)
 	return result;
 }
 
-struct file_operations vvp_dump_pgcache_file_ops = {
+const struct file_operations vvp_dump_pgcache_file_ops = {
 	.owner   = THIS_MODULE,
 	.open    = vvp_dump_pgcache_seq_open,
 	.read    = seq_read,
diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h
index c82bf17f55a6..3c9a03d99559 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_internal.h
+++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h
@@ -57,6 +57,6 @@ struct lu_object *vvp_object_alloc(const struct lu_env *env,
 
 struct ccc_object *cl_inode2ccc(struct inode *inode);
 
-extern struct kmem_cache *vvp_thread_kmem;
+extern const struct file_operations vvp_dump_pgcache_file_ops;
 
 #endif /* VVP_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
index 5156ab829090..7dd2b4723c5f 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -190,7 +190,7 @@ static void vvp_io_fault_fini(const struct lu_env *env,
 	vvp_io_fini(env, ios);
 }
 
-enum cl_lock_mode vvp_mode_from_vma(struct vm_area_struct *vma)
+static enum cl_lock_mode vvp_mode_from_vma(struct vm_area_struct *vma)
 {
 	/*
 	 * we only want to hold PW locks if the mmap() can generate
diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c
index 554a5dd2155c..65b6db1b71b4 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_object.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_object.c
@@ -120,8 +120,8 @@ static int vvp_attr_set(const struct lu_env *env, struct cl_object *obj,
 	return 0;
 }
 
-int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
-		const struct cl_object_conf *conf)
+static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
+			const struct cl_object_conf *conf)
 {
 	struct ll_inode_info *lli = ll_i2info(conf->coc_inode);
 
diff --git a/drivers/staging/lustre/lustre/llite/xattr_cache.c b/drivers/staging/lustre/lustre/llite/xattr_cache.c
index dfd19f801013..4dd83fc03687 100644
--- a/drivers/staging/lustre/lustre/llite/xattr_cache.c
+++ b/drivers/staging/lustre/lustre/llite/xattr_cache.c
@@ -232,7 +232,7 @@ static int ll_xattr_cache_list(struct list_head *cache,
  * \retval 0 @cache is not initialized
  * \retval 1 @cache is initialized
  */
-int ll_xattr_cache_valid(struct ll_inode_info *lli)
+static int ll_xattr_cache_valid(struct ll_inode_info *lli)
 {
 	return !!(lli->lli_flags & LLIF_XATTR_CACHE);
 }