1 files changed, 145 insertions, 156 deletions

diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c
index ef638086d734..6844f1dc3921 100644
--- a/fs/smb/client/readdir.c
+++ b/fs/smb/client/readdir.c
@@ -9,6 +9,7 @@
  *
  */
 #include <linux/fs.h>
+#include <linux/namei.h>
 #include <linux/pagemap.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
@@ -22,6 +23,7 @@
 #include "smb2proto.h"
 #include "fs_context.h"
 #include "cached_dir.h"
+#include "reparse.h"
 
 /*
  * To be safe - for UCS to UTF-8 with strings loaded with the rare long
@@ -70,11 +72,14 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name,
 	struct inode *inode;
 	struct super_block *sb = parent->d_sb;
 	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	bool posix = cifs_sb_master_tcon(cifs_sb)->posix_extensions;
+	bool reparse_need_reval = false;
 	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
+	int rc;
 
 	cifs_dbg(FYI, "%s: for %s\n", __func__, name->name);
 
-	dentry = d_hash_and_lookup(parent, name);
+	dentry = try_lookup_noperm(name, parent);
 	if (!dentry) {
 		/*
 		 * If we know that the inode will need to be revalidated
@@ -82,9 +87,25 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name,
 		 * We'll end up doing an on the wire call either way and
 		 * this spares us an invalidation.
 		 */
-		if (fattr->cf_flags & CIFS_FATTR_NEED_REVAL)
-			return;
 retry:
+		if (posix) {
+			switch (fattr->cf_mode & S_IFMT) {
+			case S_IFLNK:
+			case S_IFBLK:
+			case S_IFCHR:
+				reparse_need_reval = true;
+				break;
+			default:
+				break;
+			}
+		} else if (fattr->cf_cifsattrs & ATTR_REPARSE_POINT) {
+			reparse_need_reval = true;
+		}
+
+		if (reparse_need_reval ||
+		    (fattr->cf_flags & CIFS_FATTR_NEED_REVAL))
+			return;
+
 		dentry = d_alloc_parallel(parent, name, &wq);
 	}
 	if (IS_ERR(dentry))
@@ -104,12 +125,36 @@ retry:
 			if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM))
 				fattr->cf_uniqueid = CIFS_I(inode)->uniqueid;
 
-			/* update inode in place
-			 * if both i_ino and i_mode didn't change */
-			if (CIFS_I(inode)->uniqueid == fattr->cf_uniqueid &&
-			    cifs_fattr_to_inode(inode, fattr) == 0) {
-				dput(dentry);
-				return;
+			/*
+			 * Update inode in place if both i_ino and i_mode didn't
+			 * change.
+			 */
+			if (CIFS_I(inode)->uniqueid == fattr->cf_uniqueid) {
+				/*
+				 * Query dir responses don't provide enough
+				 * information about reparse points other than
+				 * their reparse tags.  Save an invalidation by
+				 * not clobbering some existing attributes when
+				 * reparse tag and ctime haven't changed.
+				 */
+				rc = 0;
+				if (fattr->cf_cifsattrs & ATTR_REPARSE_POINT) {
+					if (likely(reparse_inode_match(inode, fattr))) {
+						fattr->cf_mode = inode->i_mode;
+						fattr->cf_rdev = inode->i_rdev;
+						fattr->cf_uid = inode->i_uid;
+						fattr->cf_gid = inode->i_gid;
+						fattr->cf_eof = CIFS_I(inode)->netfs.remote_i_size;
+						fattr->cf_symlink_target = NULL;
+					} else {
+						CIFS_I(inode)->time = 0;
+						rc = -ESTALE;
+					}
+				}
+				if (!rc && !cifs_fattr_to_inode(inode, fattr, true)) {
+					dput(dentry);
+					return;
+				}
 			}
 		}
 		d_invalidate(dentry);
@@ -127,31 +172,13 @@ retry:
 	dput(dentry);
 }
 
-static bool reparse_file_needs_reval(const struct cifs_fattr *fattr)
-{
-	if (!(fattr->cf_cifsattrs & ATTR_REPARSE))
-		return false;
-	/*
-	 * The DFS tags should be only intepreted by server side as per
-	 * MS-FSCC 2.1.2.1, but let's include them anyway.
-	 *
-	 * Besides, if cf_cifstag is unset (0), then we still need it to be
-	 * revalidated to know exactly what reparse point it is.
-	 */
-	switch (fattr->cf_cifstag) {
-	case IO_REPARSE_TAG_DFS:
-	case IO_REPARSE_TAG_DFSR:
-	case IO_REPARSE_TAG_SYMLINK:
-	case IO_REPARSE_TAG_NFS:
-	case 0:
-		return true;
-	}
-	return false;
-}
-
 static void
 cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
 {
+	struct cifs_open_info_data data = {
+		.reparse = { .tag = fattr->cf_cifstag, },
+	};
+
 	fattr->cf_uid = cifs_sb->ctx->linux_uid;
 	fattr->cf_gid = cifs_sb->ctx->linux_gid;
 
@@ -163,37 +190,19 @@ cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
 	 * TODO: go through all documented  reparse tags to see if we can
 	 * reasonably map some of them to directories vs. files vs. symlinks
 	 */
+	if ((fattr->cf_cifsattrs & ATTR_REPARSE_POINT) &&
+	    cifs_reparse_point_to_fattr(cifs_sb, fattr, &data))
+		goto out_reparse;
+
 	if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
 		fattr->cf_mode = S_IFDIR | cifs_sb->ctx->dir_mode;
 		fattr->cf_dtype = DT_DIR;
-	} else if (fattr->cf_cifstag == IO_REPARSE_TAG_LX_SYMLINK) {
-		fattr->cf_mode |= S_IFLNK | cifs_sb->ctx->file_mode;
-		fattr->cf_dtype = DT_LNK;
-	} else if (fattr->cf_cifstag == IO_REPARSE_TAG_LX_FIFO) {
-		fattr->cf_mode |= S_IFIFO | cifs_sb->ctx->file_mode;
-		fattr->cf_dtype = DT_FIFO;
-	} else if (fattr->cf_cifstag == IO_REPARSE_TAG_AF_UNIX) {
-		fattr->cf_mode |= S_IFSOCK | cifs_sb->ctx->file_mode;
-		fattr->cf_dtype = DT_SOCK;
-	} else if (fattr->cf_cifstag == IO_REPARSE_TAG_LX_CHR) {
-		fattr->cf_mode |= S_IFCHR | cifs_sb->ctx->file_mode;
-		fattr->cf_dtype = DT_CHR;
-	} else if (fattr->cf_cifstag == IO_REPARSE_TAG_LX_BLK) {
-		fattr->cf_mode |= S_IFBLK | cifs_sb->ctx->file_mode;
-		fattr->cf_dtype = DT_BLK;
-	} else { /* TODO: should we mark some other reparse points (like DFSR) as directories? */
+	} else {
 		fattr->cf_mode = S_IFREG | cifs_sb->ctx->file_mode;
 		fattr->cf_dtype = DT_REG;
 	}
 
-	/*
-	 * We need to revalidate it further to make a decision about whether it
-	 * is a symbolic link, DFS referral or a reparse point with a direct
-	 * access like junctions, deduplicated files, NFS symlinks.
-	 */
-	if (reparse_file_needs_reval(fattr))
-		fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
-
+out_reparse:
 	/* non-unix readdir doesn't provide nlink */
 	fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
 
@@ -249,34 +258,29 @@ cifs_posix_to_fattr(struct cifs_fattr *fattr, struct smb2_posix_info *info,
 	fattr->cf_nlink = le32_to_cpu(info->HardLinks);
 	fattr->cf_cifsattrs = le32_to_cpu(info->DosAttributes);
 
-	/*
-	 * Since we set the inode type below we need to mask off
-	 * to avoid strange results if bits set above.
-	 * XXX: why not make server&client use the type bits?
-	 */
-	fattr->cf_mode = le32_to_cpu(info->Mode) & ~S_IFMT;
+	if (fattr->cf_cifsattrs & ATTR_REPARSE_POINT)
+		fattr->cf_cifstag = le32_to_cpu(info->ReparseTag);
+
+	/* The Mode field in the response can now include the file type as well */
+	fattr->cf_mode = wire_mode_to_posix(le32_to_cpu(info->Mode),
+					    fattr->cf_cifsattrs & ATTR_DIRECTORY);
+	fattr->cf_dtype = S_DT(fattr->cf_mode);
+
+	switch (fattr->cf_mode & S_IFMT) {
+	case S_IFLNK:
+	case S_IFBLK:
+	case S_IFCHR:
+		fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
+		break;
+	default:
+		break;
+	}
 
 	cifs_dbg(FYI, "posix fattr: dev %d, reparse %d, mode %o\n",
 		 le32_to_cpu(info->DeviceId),
 		 le32_to_cpu(info->ReparseTag),
 		 le32_to_cpu(info->Mode));
 
-	if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
-		fattr->cf_mode |= S_IFDIR;
-		fattr->cf_dtype = DT_DIR;
-	} else {
-		/*
-		 * mark anything that is not a dir as regular
-		 * file. special files should have the REPARSE
-		 * attribute and will be marked as needing revaluation
-		 */
-		fattr->cf_mode |= S_IFREG;
-		fattr->cf_dtype = DT_REG;
-	}
-
-	if (reparse_file_needs_reval(fattr))
-		fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
-
 	sid_to_id(cifs_sb, &parsed.owner, fattr, SIDOWNER);
 	sid_to_id(cifs_sb, &parsed.group, fattr, SIDGROUP);
 }
@@ -304,14 +308,16 @@ cifs_dir_info_to_fattr(struct cifs_fattr *fattr, FILE_DIRECTORY_INFO *info,
 }
 
 static void cifs_fulldir_info_to_fattr(struct cifs_fattr *fattr,
-				       SEARCH_ID_FULL_DIR_INFO *info,
+				       const void *info,
 				       struct cifs_sb_info *cifs_sb)
 {
+	const FILE_FULL_DIRECTORY_INFO *di = info;
+
 	__dir_info_to_fattr(fattr, info);
 
-	/* See MS-FSCC 2.4.19 FileIdFullDirectoryInformation */
-	if (fattr->cf_cifsattrs & ATTR_REPARSE)
-		fattr->cf_cifstag = le32_to_cpu(info->EaSize);
+	/* See MS-FSCC 2.4.14, 2.4.19 */
+	if (fattr->cf_cifsattrs & ATTR_REPARSE_POINT)
+		fattr->cf_cifstag = le32_to_cpu(di->EaSize);
 	cifs_fill_common_info(fattr, cifs_sb);
 }
 
@@ -336,38 +342,6 @@ cifs_std_info_to_fattr(struct cifs_fattr *fattr, FIND_FILE_STANDARD_INFO *info,
 	cifs_fill_common_info(fattr, cifs_sb);
 }
 
-/* BB eventually need to add the following helper function to
-      resolve NT_STATUS_STOPPED_ON_SYMLINK return code when
-      we try to do FindFirst on (NTFS) directory symlinks */
-/*
-int get_symlink_reparse_path(char *full_path, struct cifs_sb_info *cifs_sb,
-			     unsigned int xid)
-{
-	__u16 fid;
-	int len;
-	int oplock = 0;
-	int rc;
-	struct cifs_tcon *ptcon = cifs_sb_tcon(cifs_sb);
-	char *tmpbuffer;
-
-	rc = CIFSSMBOpen(xid, ptcon, full_path, FILE_OPEN, GENERIC_READ,
-			OPEN_REPARSE_POINT, &fid, &oplock, NULL,
-			cifs_sb->local_nls,
-			cifs_remap(cifs_sb);
-	if (!rc) {
-		tmpbuffer = kmalloc(maxpath);
-		rc = CIFSSMBQueryReparseLinkInfo(xid, ptcon, full_path,
-				tmpbuffer,
-				maxpath -1,
-				fid,
-				cifs_sb->local_nls);
-		if (CIFSSMBClose(xid, ptcon, fid)) {
-			cifs_dbg(FYI, "Error closing temporary reparsepoint open\n");
-		}
-	}
-}
- */
-
 static int
 _initiate_cifs_search(const unsigned int xid, struct file *file,
 		     const char *full_path)
@@ -425,7 +399,7 @@ ffirst_retry:
 	} else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
 		cifsFile->srch_inf.info_level = SMB_FIND_FILE_ID_FULL_DIR_INFO;
 	} else /* not srvinos - BB fixme add check for backlevel? */ {
-		cifsFile->srch_inf.info_level = SMB_FIND_FILE_DIRECTORY_INFO;
+		cifsFile->srch_inf.info_level = SMB_FIND_FILE_FULL_DIRECTORY_INFO;
 	}
 
 	search_flags = CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME;
@@ -436,14 +410,11 @@ ffirst_retry:
 					  &cifsFile->fid, search_flags,
 					  &cifsFile->srch_inf);
 
-	if (rc == 0)
+	if (rc == 0) {
 		cifsFile->invalidHandle = false;
-	/* BB add following call to handle readdir on new NTFS symlink errors
-	else if STATUS_STOPPED_ON_SYMLINK
-		call get_symlink_reparse_path and retry with new path */
-	else if ((rc == -EOPNOTSUPP) &&
-		(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
-		cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM;
+	} else if ((rc == -EOPNOTSUPP) &&
+		   (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
+		cifs_autodisable_serverino(cifs_sb);
 		goto ffirst_retry;
 	}
 error_exit:
@@ -577,7 +548,7 @@ static void cifs_fill_dirent_full(struct cifs_dirent *de,
 }
 
 static void cifs_fill_dirent_search(struct cifs_dirent *de,
-		const SEARCH_ID_FULL_DIR_INFO *info)
+		const FILE_ID_FULL_DIR_INFO *info)
 {
 	de->name = &info->FileName[0];
 	de->namelen = le32_to_cpu(info->FileNameLength);
@@ -597,7 +568,7 @@ static void cifs_fill_dirent_std(struct cifs_dirent *de,
 		const FIND_FILE_STANDARD_INFO *info)
 {
 	de->name = &info->FileName[0];
-	/* one byte length, no endianess conversion */
+	/* one byte length, no endianness conversion */
 	de->namelen = info->FileNameLength;
 	de->resume_key = info->ResumeKey;
 }
@@ -677,10 +648,10 @@ static int cifs_entry_is_dot(struct cifs_dirent *de, bool is_unicode)
 static int is_dir_changed(struct file *file)
 {
 	struct inode *inode = file_inode(file);
-	struct cifsInodeInfo *cifsInfo = CIFS_I(inode);
+	struct cifsInodeInfo *cifs_inode_info = CIFS_I(inode);
 
-	if (cifsInfo->time == 0)
-		return 1; /* directory was changed, perhaps due to unlink */
+	if (cifs_inode_info->time == 0)
+		return 1; /* directory was changed, e.g. unlink or new file */
 	else
 		return 0;
 
@@ -763,7 +734,10 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos,
 			else
 				cifs_buf_release(cfile->srch_inf.
 						ntwrk_buf_start);
+			/* Reset all pointers to the network buffer to prevent stale references */
 			cfile->srch_inf.ntwrk_buf_start = NULL;
+			cfile->srch_inf.srch_entries_start = NULL;
+			cfile->srch_inf.last_entry = NULL;
 		}
 		rc = initiate_cifs_search(xid, file, full_path);
 		if (rc) {
@@ -786,11 +760,11 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos,
 		rc = server->ops->query_dir_next(xid, tcon, &cfile->fid,
 						 search_flags,
 						 &cfile->srch_inf);
+		if (rc)
+			return -ENOENT;
 		/* FindFirst/Next set last_entry to NULL on malformed reply */
 		if (cfile->srch_inf.last_entry)
 			cifs_save_resume_key(cfile->srch_inf.last_entry, cfile);
-		if (rc)
-			return -ENOENT;
 	}
 	if (index_to_find < cfile->srch_inf.index_of_last_entry) {
 		/* we found the buffer that contains the entry */
@@ -801,7 +775,7 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos,
 
 		if (cfile->srch_inf.ntwrk_buf_start == NULL) {
 			cifs_dbg(VFS, "ntwrk_buf_start is NULL during readdir\n");
-			return -EIO;
+			return smb_EIO(smb_eio_trace_null_pointers);
 		}
 
 		end_of_smb = cfile->srch_inf.ntwrk_buf_start +
@@ -859,7 +833,7 @@ static bool emit_cached_dirents(struct cached_dirents *cde,
 		 * However, this sequence of ->pos values may have holes
 		 * in it, for example dot-dirs returned from the server
 		 * are suppressed.
-		 * Handle this bu forcing ctx->pos to be the same as the
+		 * Handle this by forcing ctx->pos to be the same as the
 		 * ->pos of the current dirent we emit from the cache.
 		 * This means that when we emit these entries from the cache
 		 * we now emit them with the same ->pos value as in the
@@ -877,9 +851,9 @@ static bool emit_cached_dirents(struct cached_dirents *cde,
 }
 
 static void update_cached_dirents_count(struct cached_dirents *cde,
-					struct dir_context *ctx)
+					struct file *file)
 {
-	if (cde->ctx != ctx)
+	if (cde->file != file)
 		return;
 	if (cde->is_valid || cde->is_failed)
 		return;
@@ -888,9 +862,9 @@ static void update_cached_dirents_count(struct cached_dirents *cde,
 }
 
 static void finished_cached_dirents_count(struct cached_dirents *cde,
-					struct dir_context *ctx)
+					struct dir_context *ctx, struct file *file)
 {
-	if (cde->ctx != ctx)
+	if (cde->file != file)
 		return;
 	if (cde->is_valid || cde->is_failed)
 		return;
@@ -900,46 +874,52 @@ static void finished_cached_dirents_count(struct cached_dirents *cde,
 	cde->is_valid = 1;
 }
 
-static void add_cached_dirent(struct cached_dirents *cde,
-			      struct dir_context *ctx,
-			      const char *name, int namelen,
-			      struct cifs_fattr *fattr)
+static bool add_cached_dirent(struct cached_dirents *cde,
+			      struct dir_context *ctx, const char *name,
+			      int namelen, struct cifs_fattr *fattr,
+			      struct file *file)
 {
 	struct cached_dirent *de;
 
-	if (cde->ctx != ctx)
-		return;
+	if (cde->file != file)
+		return false;
 	if (cde->is_valid || cde->is_failed)
-		return;
+		return false;
 	if (ctx->pos != cde->pos) {
 		cde->is_failed = 1;
-		return;
+		return false;
 	}
 	de = kzalloc(sizeof(*de), GFP_ATOMIC);
 	if (de == NULL) {
 		cde->is_failed = 1;
-		return;
+		return false;
 	}
 	de->namelen = namelen;
 	de->name = kstrndup(name, namelen, GFP_ATOMIC);
 	if (de->name == NULL) {
 		kfree(de);
 		cde->is_failed = 1;
-		return;
+		return false;
 	}
 	de->pos = ctx->pos;
 
 	memcpy(&de->fattr, fattr, sizeof(struct cifs_fattr));
 
 	list_add_tail(&de->entry, &cde->entries);
+	/* update accounting */
+	cde->entries_count++;
+	cde->bytes_used += sizeof(*de) + (size_t)namelen + 1;
+	return true;
 }
 
 static bool cifs_dir_emit(struct dir_context *ctx,
 			  const char *name, int namelen,
 			  struct cifs_fattr *fattr,
-			  struct cached_fid *cfid)
+			  struct cached_fid *cfid,
+			  struct file *file)
 {
-	bool rc;
+	size_t delta_bytes = 0;
+	bool rc, added = false;
 	ino_t ino = cifs_uniqueid_to_ino_t(fattr->cf_uniqueid);
 
 	rc = dir_emit(ctx, name, namelen, ino, fattr->cf_dtype);
@@ -947,10 +927,20 @@ static bool cifs_dir_emit(struct dir_context *ctx,
 		return rc;
 
 	if (cfid) {
+		/* Cost of this entry */
+		delta_bytes = sizeof(struct cached_dirent) + (size_t)namelen + 1;
+
 		mutex_lock(&cfid->dirents.de_mutex);
-		add_cached_dirent(&cfid->dirents, ctx, name, namelen,
-				  fattr);
+		added = add_cached_dirent(&cfid->dirents, ctx, name, namelen,
+					  fattr, file);
 		mutex_unlock(&cfid->dirents.de_mutex);
+
+		if (added) {
+			/* per-tcon then global for consistency with free path */
+			atomic64_add((long long)delta_bytes, &cfid->cfids->total_dirents_bytes);
+			atomic_long_inc(&cfid->cfids->total_dirents_entries);
+			atomic64_add((long long)delta_bytes, &cifs_dircache_bytes_used);
+		}
 	}
 
 	return rc;
@@ -1019,10 +1009,9 @@ static int cifs_filldir(char *find_entry, struct file *file,
 				       (FIND_FILE_STANDARD_INFO *)find_entry,
 				       cifs_sb);
 		break;
+	case SMB_FIND_FILE_FULL_DIRECTORY_INFO:
 	case SMB_FIND_FILE_ID_FULL_DIR_INFO:
-		cifs_fulldir_info_to_fattr(&fattr,
-					   (SEARCH_ID_FULL_DIR_INFO *)find_entry,
-					   cifs_sb);
+		cifs_fulldir_info_to_fattr(&fattr, find_entry, cifs_sb);
 		break;
 	default:
 		cifs_dir_info_to_fattr(&fattr,
@@ -1050,7 +1039,7 @@ static int cifs_filldir(char *find_entry, struct file *file,
 	cifs_prime_dcache(file_dentry(file), &name, &fattr);
 
 	return !cifs_dir_emit(ctx, name.name, name.len,
-			      &fattr, cfid);
+			      &fattr, cfid, file);
 }
 
 
@@ -1101,8 +1090,8 @@ int cifs_readdir(struct file *file, struct dir_context *ctx)
 	 * we need to initialize scanning and storing the
 	 * directory content.
 	 */
-	if (ctx->pos == 0 && cfid->dirents.ctx == NULL) {
-		cfid->dirents.ctx = ctx;
+	if (ctx->pos == 0 && cfid->dirents.file == NULL) {
+		cfid->dirents.file = file;
 		cfid->dirents.pos = 2;
 	}
 	/*
@@ -1170,7 +1159,7 @@ int cifs_readdir(struct file *file, struct dir_context *ctx)
 	} else {
 		if (cfid) {
 			mutex_lock(&cfid->dirents.de_mutex);
-			finished_cached_dirents_count(&cfid->dirents, ctx);
+			finished_cached_dirents_count(&cfid->dirents, ctx, file);
 			mutex_unlock(&cfid->dirents.de_mutex);
 		}
 		cifs_dbg(FYI, "Could not find entry\n");
@@ -1211,7 +1200,7 @@ int cifs_readdir(struct file *file, struct dir_context *ctx)
 		ctx->pos++;
 		if (cfid) {
 			mutex_lock(&cfid->dirents.de_mutex);
-			update_cached_dirents_count(&cfid->dirents, ctx);
+			update_cached_dirents_count(&cfid->dirents, file);
 			mutex_unlock(&cfid->dirents.de_mutex);
 		}