1 files changed, 87 insertions, 85 deletions

diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index e5210519ac4b..eeab602c6e0a 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -2,7 +2,7 @@
  *   fs/cifs/dir.c
  *
  *   vfs operations that deal with dentries
- * 
+ *
  *   Copyright (C) International Business Machines  Corp., 2002,2005
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
@@ -34,11 +34,12 @@
 static void
 renew_parental_timestamps(struct dentry *direntry)
 {
-	/* BB check if there is a way to get the kernel to do this or if we really need this */
+	/* BB check if there is a way to get the kernel to do this or if we
+	   really need this */
 	do {
 		direntry->d_time = jiffies;
 		direntry = direntry->d_parent;
-	} while (!IS_ROOT(direntry));	
+	} while (!IS_ROOT(direntry));
 }
 
 /* Note: caller must free return buffer */
@@ -51,7 +52,7 @@ build_path_from_dentry(struct dentry *direntry)
 	char *full_path;
 	char dirsep;
 
-	if(direntry == NULL)
+	if (direntry == NULL)
 		return NULL;  /* not much we can do if dentry is freed and
 		we need to reopen the file after it was closed implicitly
 		when the server crashed */
@@ -59,18 +60,18 @@ build_path_from_dentry(struct dentry *direntry)
 	dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
 	pplen = CIFS_SB(direntry->d_sb)->prepathlen;
 cifs_bp_rename_retry:
-	namelen = pplen; 
+	namelen = pplen;
 	for (temp = direntry; !IS_ROOT(temp);) {
 		namelen += (1 + temp->d_name.len);
 		temp = temp->d_parent;
-		if(temp == NULL) {
-			cERROR(1,("corrupt dentry"));
+		if (temp == NULL) {
+			cERROR(1, ("corrupt dentry"));
 			return NULL;
 		}
 	}
 
 	full_path = kmalloc(namelen+1, GFP_KERNEL);
-	if(full_path == NULL)
+	if (full_path == NULL)
 		return full_path;
 	full_path[namelen] = 0;	/* trailing null */
 	for (temp = direntry; !IS_ROOT(temp);) {
@@ -84,8 +85,8 @@ cifs_bp_rename_retry:
 			cFYI(0, ("name: %s", full_path + namelen));
 		}
 		temp = temp->d_parent;
-		if(temp == NULL) {
-			cERROR(1,("corrupt dentry"));
+		if (temp == NULL) {
+			cERROR(1, ("corrupt dentry"));
 			kfree(full_path);
 			return NULL;
 		}
@@ -94,7 +95,7 @@ cifs_bp_rename_retry:
 		cERROR(1,
 		       ("did not end path lookup where expected namelen is %d",
 			namelen));
-		/* presumably this is only possible if racing with a rename 
+		/* presumably this is only possible if racing with a rename
 		of one of the parent directories  (we can not lock the dentries
 		above us to prevent this, but retrying should be harmless) */
 		kfree(full_path);
@@ -106,7 +107,7 @@ cifs_bp_rename_retry:
 	   since the '\' is a valid posix character so we can not switch
 	   those safely to '/' if any are found in the middle of the prepath */
 	/* BB test paths to Windows with '/' in the midst of prepath */
-	strncpy(full_path,CIFS_SB(direntry->d_sb)->prepath,pplen);
+	strncpy(full_path, CIFS_SB(direntry->d_sb)->prepath, pplen);
 	return full_path;
 }
 
@@ -147,12 +148,12 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 	pTcon = cifs_sb->tcon;
 
 	full_path = build_path_from_dentry(direntry);
-	if(full_path == NULL) {
+	if (full_path == NULL) {
 		FreeXid(xid);
 		return -ENOMEM;
 	}
 
-	if(nd && (nd->flags & LOOKUP_OPEN)) {
+	if (nd && (nd->flags & LOOKUP_OPEN)) {
 		int oflags = nd->intent.open.flags;
 
 		desiredAccess = 0;
@@ -164,28 +165,29 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 				write_only = TRUE;
 		}
 
-		if((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
+		if ((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
 			disposition = FILE_CREATE;
-		else if((oflags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC))
+		else if ((oflags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC))
 			disposition = FILE_OVERWRITE_IF;
-		else if((oflags & O_CREAT) == O_CREAT)
+		else if ((oflags & O_CREAT) == O_CREAT)
 			disposition = FILE_OPEN_IF;
 		else {
-			cFYI(1,("Create flag not set in create function"));
+			cFYI(1, ("Create flag not set in create function"));
 		}
 	}
 
-	/* BB add processing to set equivalent of mode - e.g. via CreateX with ACLs */
+	/* BB add processing to set equivalent of mode - e.g. via CreateX with
+	   ACLs */
 	if (oplockEnabled)
 		oplock = REQ_OPLOCK;
 
-	buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
-	if(buf == NULL) {
+	buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+	if (buf == NULL) {
 		kfree(full_path);
 		FreeXid(xid);
 		return -ENOMEM;
 	}
-	if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS) 
+	if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
 		rc = CIFSSMBOpen(xid, pTcon, full_path, disposition,
 			 desiredAccess, CREATE_NOT_DIR,
 			 &fileHandle, &oplock, buf, cifs_sb->local_nls,
@@ -193,13 +195,13 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 	else
 		rc = -EIO; /* no NT SMB support fall into legacy open below */
 
-	if(rc == -EIO) {
+	if (rc == -EIO) {
 		/* old server, retry the open legacy style */
 		rc = SMBLegacyOpen(xid, pTcon, full_path, disposition,
 			desiredAccess, CREATE_NOT_DIR,
 			&fileHandle, &oplock, buf, cifs_sb->local_nls,
 			cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
-	} 
+	}
 	if (rc) {
 		cFYI(1, ("cifs_create returned 0x%x", rc));
 	} else {
@@ -207,13 +209,13 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 		then we now have to set the mode if possible */
 		if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) &&
 			(oplock & CIFS_CREATE_ACTION))
-			if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+			if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
 				CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
 					(__u64)current->fsuid,
 					(__u64)current->fsgid,
 					0 /* dev */,
-					cifs_sb->local_nls, 
-					cifs_sb->mnt_cifs_flags & 
+					cifs_sb->local_nls,
+					cifs_sb->mnt_cifs_flags &
 						CIFS_MOUNT_MAP_SPECIAL_CHR);
 			} else {
 				CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
@@ -221,26 +223,28 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 					(__u64)-1,
 					0 /* dev */,
 					cifs_sb->local_nls,
-					cifs_sb->mnt_cifs_flags & 
+					cifs_sb->mnt_cifs_flags &
 						CIFS_MOUNT_MAP_SPECIAL_CHR);
 			}
 		else {
-			/* BB implement mode setting via Windows security descriptors */
-			/* eg CIFSSMBWinSetPerms(xid,pTcon,full_path,mode,-1,-1,local_nls);*/
-			/* could set r/o dos attribute if mode & 0222 == 0 */
+			/* BB implement mode setting via Windows security
+			   descriptors e.g. */
+			/* CIFSSMBWinSetPerms(xid,pTcon,path,mode,-1,-1,nls);*/
+
+			/* Could set r/o dos attribute if mode & 0222 == 0 */
 		}
 
 	/* BB server might mask mode so we have to query for Unix case*/
 		if (pTcon->ses->capabilities & CAP_UNIX)
 			rc = cifs_get_inode_info_unix(&newinode, full_path,
-						 inode->i_sb,xid);
+						 inode->i_sb, xid);
 		else {
 			rc = cifs_get_inode_info(&newinode, full_path,
-						 buf, inode->i_sb,xid);
-			if(newinode) {
+						 buf, inode->i_sb, xid);
+			if (newinode) {
 				newinode->i_mode = mode;
-				if((oplock & CIFS_CREATE_ACTION) &&
-				  (cifs_sb->mnt_cifs_flags & 
+				if ((oplock & CIFS_CREATE_ACTION) &&
+				    (cifs_sb->mnt_cifs_flags &
 				     CIFS_MOUNT_SET_UID)) {
 					newinode->i_uid = current->fsuid;
 					newinode->i_gid = current->fsgid;
@@ -259,14 +263,14 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 				direntry->d_op = &cifs_dentry_ops;
 			d_instantiate(direntry, newinode);
 		}
-		if((nd->flags & LOOKUP_OPEN) == FALSE) {
+		if ((nd->flags & LOOKUP_OPEN) == FALSE) {
 			/* mknod case - do not leave file open */
 			CIFSSMBClose(xid, pTcon, fileHandle);
-		} else if(newinode) {
+		} else if (newinode) {
 			pCifsFile =
 			   kzalloc(sizeof (struct cifsFileInfo), GFP_KERNEL);
 			
-			if(pCifsFile == NULL)
+			if (pCifsFile == NULL)
 				goto cifs_create_out;
 			pCifsFile->netfid = fileHandle;
 			pCifsFile->pid = current->tgid;
@@ -276,33 +280,33 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 			init_MUTEX(&pCifsFile->fh_sem);
 			mutex_init(&pCifsFile->lock_mutex);
 			INIT_LIST_HEAD(&pCifsFile->llist);
-			atomic_set(&pCifsFile->wrtPending,0);
+			atomic_set(&pCifsFile->wrtPending, 0);
 
-			/* set the following in open now 
+			/* set the following in open now
 				pCifsFile->pfile = file; */
 			write_lock(&GlobalSMBSeslock);
-			list_add(&pCifsFile->tlist,&pTcon->openFileList);
+			list_add(&pCifsFile->tlist, &pTcon->openFileList);
 			pCifsInode = CIFS_I(newinode);
-			if(pCifsInode) {
+			if (pCifsInode) {
 				/* if readable file instance put first in list*/
 				if (write_only == TRUE) {
-                                       	list_add_tail(&pCifsFile->flist,
+					list_add_tail(&pCifsFile->flist,
 						&pCifsInode->openFileList);
 				} else {
 					list_add(&pCifsFile->flist,
 						&pCifsInode->openFileList);
 				}
-				if((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
+				if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
 					pCifsInode->clientCanCacheAll = TRUE;
 					pCifsInode->clientCanCacheRead = TRUE;
 					cFYI(1,("Exclusive Oplock for inode %p",
 						newinode));
-				} else if((oplock & 0xF) == OPLOCK_READ)
+				} else if ((oplock & 0xF) == OPLOCK_READ)
 					pCifsInode->clientCanCacheRead = TRUE;
 			}
 			write_unlock(&GlobalSMBSeslock);
 		}
-	} 
+	}
 cifs_create_out:
 	kfree(buf);
 	kfree(full_path);
@@ -310,8 +314,8 @@ cifs_create_out:
 	return rc;
 }
 
-int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, 
-		dev_t device_number) 
+int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
+		dev_t device_number)
 {
 	int rc = -EPERM;
 	int xid;
@@ -329,43 +333,44 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
 	pTcon = cifs_sb->tcon;
 
 	full_path = build_path_from_dentry(direntry);
-	if(full_path == NULL)
+	if (full_path == NULL)
 		rc = -ENOMEM;
 	else if (pTcon->ses->capabilities & CAP_UNIX) {
-		if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
 			rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path,
-				mode,(__u64)current->fsuid,(__u64)current->fsgid,
+				mode, (__u64)current->fsuid,
+				(__u64)current->fsgid,
 				device_number, cifs_sb->local_nls,
-				cifs_sb->mnt_cifs_flags & 
+				cifs_sb->mnt_cifs_flags &
 					CIFS_MOUNT_MAP_SPECIAL_CHR);
 		} else {
 			rc = CIFSSMBUnixSetPerms(xid, pTcon,
 				full_path, mode, (__u64)-1, (__u64)-1,
 				device_number, cifs_sb->local_nls,
-				cifs_sb->mnt_cifs_flags & 
+				cifs_sb->mnt_cifs_flags &
 					CIFS_MOUNT_MAP_SPECIAL_CHR);
 		}
 
-		if(!rc) {
+		if (!rc) {
 			rc = cifs_get_inode_info_unix(&newinode, full_path,
-						inode->i_sb,xid);
+						inode->i_sb, xid);
 			if (pTcon->nocase)
 				direntry->d_op = &cifs_ci_dentry_ops;
 			else
 				direntry->d_op = &cifs_dentry_ops;
-			if(rc == 0)
+			if (rc == 0)
 				d_instantiate(direntry, newinode);
 		}
 	} else {
-		if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
 			int oplock = 0;
 			u16 fileHandle;
 			FILE_ALL_INFO * buf;
 
-			cFYI(1,("sfu compat create special file"));
+			cFYI(1, ("sfu compat create special file"));
 
-			buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
-			if(buf == NULL) {
+			buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+			if (buf == NULL) {
 				kfree(full_path);
 				FreeXid(xid);
 				return -ENOMEM;
@@ -373,39 +378,38 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
 
 			rc = CIFSSMBOpen(xid, pTcon, full_path,
 					 FILE_CREATE, /* fail if exists */
-					 GENERIC_WRITE /* BB would 
+					 GENERIC_WRITE /* BB would
 					  WRITE_OWNER | WRITE_DAC be better? */,
 					 /* Create a file and set the
 					    file attribute to SYSTEM */
 					 CREATE_NOT_DIR | CREATE_OPTION_SPECIAL,
 					 &fileHandle, &oplock, buf,
 					 cifs_sb->local_nls,
-					 cifs_sb->mnt_cifs_flags & 
+					 cifs_sb->mnt_cifs_flags &
 					    CIFS_MOUNT_MAP_SPECIAL_CHR);
 
 			/* BB FIXME - add handling for backlevel servers
 			   which need legacy open and check for all
-			   calls to SMBOpen for fallback to 
-			   SMBLeagcyOpen */
-			if(!rc) {
+			   calls to SMBOpen for fallback to SMBLeagcyOpen */
+			if (!rc) {
 				/* BB Do not bother to decode buf since no
 				   local inode yet to put timestamps in,
 				   but we can reuse it safely */
 				int bytes_written;
 				struct win_dev *pdev;
 				pdev = (struct win_dev *)buf;
-				if(S_ISCHR(mode)) {
+				if (S_ISCHR(mode)) {
 					memcpy(pdev->type, "IntxCHR", 8);
 					pdev->major =
 					      cpu_to_le64(MAJOR(device_number));
-					pdev->minor = 
+					pdev->minor =
 					      cpu_to_le64(MINOR(device_number));
 					rc = CIFSSMBWrite(xid, pTcon,
 						fileHandle,
 						sizeof(struct win_dev),
 						0, &bytes_written, (char *)pdev,
 						NULL, 0);
-				} else if(S_ISBLK(mode)) {
+				} else if (S_ISBLK(mode)) {
 					memcpy(pdev->type, "IntxBLK", 8);
 					pdev->major =
 					      cpu_to_le64(MAJOR(device_number));
@@ -432,7 +436,8 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
 
 
 struct dentry *
-cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct nameidata *nd)
+cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
+	    struct nameidata *nd)
 {
 	int xid;
 	int rc = 0; /* to get around spurious gcc warning, set to zero here */
@@ -447,8 +452,6 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
 	     (" parent inode = 0x%p name is: %s and dentry = 0x%p",
 	      parent_dir_inode, direntry->d_name.name, direntry));
 
-	/* BB Add check of incoming data - e.g. frame not longer than maximum SMB - let server check the namelen BB */
-
 	/* check whether path exists */
 
 	cifs_sb = CIFS_SB(parent_dir_inode->i_sb);
@@ -472,7 +475,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
 	deadlock in the cases (beginning of sys_rename itself)
 	in which we already have the sb rename sem */
 	full_path = build_path_from_dentry(direntry);
-	if(full_path == NULL) {
+	if (full_path == NULL) {
 		FreeXid(xid);
 		return ERR_PTR(-ENOMEM);
 	}
@@ -487,10 +490,10 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
 
 	if (pTcon->ses->capabilities & CAP_UNIX)
 		rc = cifs_get_inode_info_unix(&newInode, full_path,
-					      parent_dir_inode->i_sb,xid);
+					      parent_dir_inode->i_sb, xid);
 	else
 		rc = cifs_get_inode_info(&newInode, full_path, NULL,
-					 parent_dir_inode->i_sb,xid);
+					 parent_dir_inode->i_sb, xid);
 
 	if ((rc == 0) && (newInode != NULL)) {
 		if (pTcon->nocase)
@@ -499,7 +502,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
 			direntry->d_op = &cifs_dentry_ops;
 		d_add(direntry, newInode);
 
-		/* since paths are not looked up by component - the parent 
+		/* since paths are not looked up by component - the parent
 		   directories are presumed to be good here */
 		renew_parental_timestamps(direntry);
 
@@ -511,13 +514,13 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
 		else
 			direntry->d_op = &cifs_dentry_ops;
 		d_add(direntry, NULL);
-	/*	if it was once a directory (but how can we tell?) we could do  
-			shrink_dcache_parent(direntry); */
+	/*	if it was once a directory (but how can we tell?) we could do
+		shrink_dcache_parent(direntry); */
 	} else {
 		cERROR(1,("Error 0x%x on cifs_get_inode_info in lookup of %s",
-			   rc,full_path));
-		/* BB special case check for Access Denied - watch security 
-		exposure of returning dir info implicitly via different rc 
+			   rc, full_path));
+		/* BB special case check for Access Denied - watch security
+		exposure of returning dir info implicitly via different rc
 		if file exists or not but no access BB */
 	}
 
@@ -538,11 +541,11 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
 	} else {
 		cFYI(1, ("neg dentry 0x%p name = %s",
 			 direntry, direntry->d_name.name));
-		if(time_after(jiffies, direntry->d_time + HZ) || 
+		if (time_after(jiffies, direntry->d_time + HZ) ||
 			!lookupCacheEnabled) {
 			d_drop(direntry);
 			isValid = 0;
-		} 
+		}
 	}
 
 	return isValid;
@@ -559,8 +562,7 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
 
 struct dentry_operations cifs_dentry_ops = {
 	.d_revalidate = cifs_d_revalidate,
-/* d_delete:       cifs_d_delete,       *//* not needed except for debugging */
-	/* no need for d_hash, d_compare, d_release, d_iput ... yet. BB confirm this BB */
+/* d_delete:       cifs_d_delete,      */ /* not needed except for debugging */
 };
 
 static int cifs_ci_hash(struct dentry *dentry, struct qstr *q)