Automatic merge with /usr/src/ntfs-2.6.git

13 files changed, 219 insertions, 196 deletions

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index f0cd67d9d31b..c8998dc66882 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -520,7 +520,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 		DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n");
 
 		down_write(&current->mm->mmap_sem);
-		textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, 0, 0);
+		textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_SHARED, 0);
 		up_write(&current->mm->mmap_sem);
 		if (!textpos  || textpos >= (unsigned long) -4096) {
 			if (!textpos)
@@ -532,7 +532,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 		down_write(&current->mm->mmap_sem);
 		realdatastart = do_mmap(0, 0, data_len + extra +
 				MAX_SHARED_LIBS * sizeof(unsigned long),
-				PROT_READ|PROT_WRITE|PROT_EXEC, 0, 0);
+				PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
 		up_write(&current->mm->mmap_sem);
 
 		if (realdatastart == 0 || realdatastart >= (unsigned long)-4096) {
@@ -574,7 +574,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 		down_write(&current->mm->mmap_sem);
 		textpos = do_mmap(0, 0, text_len + data_len + extra +
 					MAX_SHARED_LIBS * sizeof(unsigned long),
-				PROT_READ | PROT_EXEC | PROT_WRITE, 0, 0);
+				PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
 		up_write(&current->mm->mmap_sem);
 		if (!textpos  || textpos >= (unsigned long) -4096) {
 			if (!textpos)
diff --git a/fs/cifs/README b/fs/cifs/README
index e74df0c73256..34b0cf7111f3 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -371,7 +371,7 @@ A partial list of the supported mount options follows:
 		on newly created files, directories, and devices (create, 
 		mkdir, mknod) which will result in the server setting the
 		uid and gid to the default (usually the server uid of the
-		usern who mounted the share).  Letting the server (rather than
+		user who mounted the share).  Letting the server (rather than
 		the client) set the uid and gid is the default. This
 		parameter has no effect if the CIFS Unix Extensions are not
 		negotiated.
@@ -384,7 +384,7 @@ A partial list of the supported mount options follows:
 		client (e.g. when the application is doing large sequential
 		reads bigger than page size without rereading the same data) 
 		this can provide better performance than the default
-		behavior which caches reads (reaadahead) and writes 
+		behavior which caches reads (readahead) and writes 
 		(writebehind) through the local Linux client pagecache 
 		if oplock (caching token) is granted and held. Note that
 		direct allows write operations larger than page size
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 0010511083fc..ea239dea571e 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -228,7 +228,7 @@ extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
 			const struct nls_table *nls_codepage, 
 			int remap_special_chars);
 #endif /* CONFIG_CIFS_EXPERIMENTAL */
-extern int cifs_convertUCSpath(char *target, const __u16 *source, int maxlen,
+extern int cifs_convertUCSpath(char *target, const __le16 *source, int maxlen,
 			const struct nls_table * codepage);
 extern int cifsConvertToUCS(__le16 * target, const char *source, int maxlen,
 			const struct nls_table * cp, int mapChars);
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 741ff0c69f37..3c628bf667a5 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -567,7 +567,7 @@ DelFileRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->fileName, fileName, 
+		    cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, 
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -665,7 +665,7 @@ MkDirRetry:
 		return rc;
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
-		name_len = cifsConvertToUCS((__u16 *) pSMB->DirName, name, 
+		name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, 
 					    PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -719,7 +719,7 @@ openRetry:
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		count = 1;	/* account for one byte pad to word boundary */
 		name_len =
-		    cifsConvertToUCS((__u16 *) (pSMB->fileName + 1),
+		    cifsConvertToUCS((__le16 *) (pSMB->fileName + 1),
 				     fileName, PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -1141,7 +1141,7 @@ renameRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->OldFileName, fromName, 
+		    cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, 
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -1149,7 +1149,7 @@ renameRetry:
 	/* protocol requires ASCII signature byte on Unicode string */
 		pSMB->OldFileName[name_len + 1] = 0x00;
 		name_len2 =
-		    cifsConvertToUCS((__u16 *) &pSMB->OldFileName[name_len + 2],
+		    cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2],
 				     toName, PATH_MAX, nls_codepage, remap);
 		name_len2 += 1 /* trailing null */  + 1 /* Signature word */ ;
 		name_len2 *= 2;	/* convert to bytes */
@@ -1236,10 +1236,10 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon,
 	/* unicode only call */
 	if(target_name == NULL) {
 		sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid);
-	        len_of_str = cifsConvertToUCS((__u16 *)rename_info->target_name,
+	        len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name,
 					dummy_string, 24, nls_codepage, remap);
 	} else {
-		len_of_str = cifsConvertToUCS((__u16 *)rename_info->target_name,
+		len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name,
 					target_name, PATH_MAX, nls_codepage, remap);
 	}
 	rename_info->target_name_len = cpu_to_le32(2 * len_of_str);
@@ -1296,7 +1296,7 @@ copyRetry:
 	pSMB->Flags = cpu_to_le16(flags & COPY_TREE);
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
-		name_len = cifsConvertToUCS((__u16 *) pSMB->OldFileName, 
+		name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, 
 					    fromName, PATH_MAX, nls_codepage,
 					    remap);
 		name_len++;     /* trailing null */
@@ -1304,7 +1304,7 @@ copyRetry:
 		pSMB->OldFileName[name_len] = 0x04;     /* pad */
 		/* protocol requires ASCII signature byte on Unicode string */
 		pSMB->OldFileName[name_len + 1] = 0x00;
-		name_len2 = cifsConvertToUCS((__u16 *)&pSMB->OldFileName[name_len + 2], 
+		name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], 
 				toName, PATH_MAX, nls_codepage, remap);
 		name_len2 += 1 /* trailing null */  + 1 /* Signature word */ ;
 		name_len2 *= 2; /* convert to bytes */
@@ -1453,7 +1453,7 @@ createHardLinkRetry:
 		return rc;
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
-		name_len = cifsConvertToUCS((__u16 *) pSMB->FileName, toName,
+		name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName,
 					    PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -1476,7 +1476,7 @@ createHardLinkRetry:
 	data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len_target =
-		    cifsConvertToUCS((__u16 *) data_offset, fromName, PATH_MAX,
+		    cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX,
 				     nls_codepage, remap);
 		name_len_target++;	/* trailing null */
 		name_len_target *= 2;
@@ -1546,14 +1546,14 @@ winCreateHardLinkRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->OldFileName, fromName,
+		    cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName,
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
 		pSMB->OldFileName[name_len] = 0;	/* pad */
 		pSMB->OldFileName[name_len + 1] = 0x04; 
 		name_len2 =
-		    cifsConvertToUCS((__u16 *)&pSMB->OldFileName[name_len + 2], 
+		    cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], 
 				     toName, PATH_MAX, nls_codepage, remap);
 		name_len2 += 1 /* trailing null */  + 1 /* Signature word */ ;
 		name_len2 *= 2;	/* convert to bytes */
@@ -1939,7 +1939,7 @@ queryAclRetry:
                                                                                                                                              
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-			cifsConvertToUCS((__u16 *) pSMB->FileName, searchName, 
+			cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, 
 					 PATH_MAX, nls_codepage, remap);
 		name_len++;     /* trailing null */
 		name_len *= 2;
@@ -2024,7 +2024,7 @@ setAclRetry:
 		return rc;
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-			cifsConvertToUCS((__u16 *) pSMB->FileName, fileName, 
+			cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, 
 				      PATH_MAX, nls_codepage, remap);
 		name_len++;     /* trailing null */
 		name_len *= 2;
@@ -2188,7 +2188,7 @@ QPathInfoRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName, searchName, 
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, 
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -2269,7 +2269,7 @@ UnixQPathInfoRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName, searchName,
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
 				  PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -2350,7 +2350,7 @@ findUniqueRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((wchar_t *) pSMB->FileName, searchName, PATH_MAX
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX
 				  /* find define for this maxpathcomponent */
 				  , nls_codepage);
 		name_len++;	/* trailing null */
@@ -2435,7 +2435,7 @@ findFirstRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName,searchName,
+		    cifsConvertToUCS((__le16 *) pSMB->FileName,searchName,
 				 PATH_MAX, nls_codepage, remap);
 		/* We can not add the asterik earlier in case
 		it got remapped to 0xF03A as if it were part of the
@@ -2726,7 +2726,7 @@ GetInodeNumberRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-			cifsConvertToUCS((__u16 *) pSMB->FileName, searchName,
+			cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
 				PATH_MAX,nls_codepage, remap);
 		name_len++;     /* trailing null */
 		name_len *= 2;
@@ -2837,7 +2837,7 @@ getDFSRetry:
 	if (ses->capabilities & CAP_UNICODE) {
 		pSMB->hdr.Flags2 |= SMBFLG2_UNICODE;
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->RequestFileName,
+		    cifsConvertToUCS((__le16 *) pSMB->RequestFileName,
 				     searchName, PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -3369,7 +3369,7 @@ SetEOFRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName, fileName,
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, fileName,
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -3627,7 +3627,7 @@ SetTimesRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName, fileName,
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, fileName,
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -3708,7 +3708,7 @@ SetAttrLgcyRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-			ConvertToUCS((wchar_t *) pSMB->fileName, fileName, 
+			ConvertToUCS((__le16 *) pSMB->fileName, fileName, 
 				PATH_MAX, nls_codepage);
 		name_len++;     /* trailing null */
 		name_len *= 2;
@@ -3759,7 +3759,7 @@ setPermsRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName, fileName, 
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, 
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -3904,7 +3904,7 @@ QAllEAsRetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((wchar_t *) pSMB->FileName, searchName, 
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, 
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -4047,7 +4047,7 @@ QEARetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName, searchName, 
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, 
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
@@ -4194,7 +4194,7 @@ SetEARetry:
 
 	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
 		name_len =
-		    cifsConvertToUCS((__u16 *) pSMB->FileName, fileName, 
+		    cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, 
 				     PATH_MAX, nls_codepage, remap);
 		name_len++;	/* trailing null */
 		name_len *= 2;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index e3137aa48cdd..3f3538d4a1fa 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -392,7 +392,8 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
 		rc = 0;
 		d_add(direntry, NULL);
 	} else {
-		cERROR(1,("Error 0x%x or on cifs_get_inode_info in lookup",rc));
+		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 
 		if file exists or not but no access BB */
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 670947288262..b8b78cbb34c9 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -422,7 +422,8 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
 			cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
 
 	if (!rc) {
-		direntry->d_inode->i_nlink--;
+		if(direntry->d_inode)
+			direntry->d_inode->i_nlink--;
 	} else if (rc == -ENOENT) {
 		d_drop(direntry);
 	} else if (rc == -ETXTBSY) {
@@ -440,7 +441,8 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
 					      cifs_sb->mnt_cifs_flags & 
 						CIFS_MOUNT_MAP_SPECIAL_CHR);
 			CIFSSMBClose(xid, pTcon, netfid);
-			direntry->d_inode->i_nlink--;
+			if(direntry->d_inode)
+				direntry->d_inode->i_nlink--;
 		}
 	} else if (rc == -EACCES) {
 		/* try only if r/o attribute set in local lookup data? */
@@ -494,7 +496,8 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
 					    cifs_sb->mnt_cifs_flags & 
 						CIFS_MOUNT_MAP_SPECIAL_CHR);
 			if (!rc) {
-				direntry->d_inode->i_nlink--;
+				if(direntry->d_inode)
+					direntry->d_inode->i_nlink--;
 			} else if (rc == -ETXTBSY) {
 				int oplock = FALSE;
 				__u16 netfid;
@@ -514,17 +517,20 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
 						cifs_sb->mnt_cifs_flags &
 						    CIFS_MOUNT_MAP_SPECIAL_CHR);
 					CIFSSMBClose(xid, pTcon, netfid);
-		                        direntry->d_inode->i_nlink--;
+					if(direntry->d_inode)
+			                        direntry->d_inode->i_nlink--;
 				}
 			/* BB if rc = -ETXTBUSY goto the rename logic BB */
 			}
 		}
 	}
-	cifsInode = CIFS_I(direntry->d_inode);
-	cifsInode->time = 0;	/* will force revalidate to get info when
-				   needed */
-	direntry->d_inode->i_ctime = inode->i_ctime = inode->i_mtime =
-		current_fs_time(inode->i_sb);
+	if(direntry->d_inode) {
+		cifsInode = CIFS_I(direntry->d_inode);
+		cifsInode->time = 0;	/* will force revalidate to get info
+					   when needed */
+		direntry->d_inode->i_ctime = current_fs_time(inode->i_sb);
+	}
+	inode->i_ctime = inode->i_mtime = current_fs_time(inode->i_sb);
 	cifsInode = CIFS_I(inode);
 	cifsInode->time = 0;	/* force revalidate of dir as well */
 
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index db14b503d89e..072b4ee8c53e 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -571,6 +571,7 @@ cifs_convertUCSpath(char *target, const __le16 * source, int maxlen,
 				break;
 			case UNI_LESSTHAN:
 				target[j] = '<';
+				break;
 			default: 
 				len = cp->uni2char(src_char, &target[j], 
 						NLS_MAX_CHARSET_SIZE);
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index 98d830401c56..5a97e346bd95 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -188,7 +188,6 @@ static int __cleanup_transaction(journal_t *journal, transaction_t *transaction)
 		} else {
 			jbd_unlock_bh_state(bh);
 		}
-		jh = next_jh;
 	} while (jh != last_jh);
 
 	return ret;
@@ -339,8 +338,10 @@ int log_do_checkpoint(journal_t *journal)
 			}
 		} while (jh != last_jh && !retry);
 
-		if (batch_count)
+		if (batch_count) {
 			__flush_batch(journal, bhs, &batch_count);
+			retry = 1;
+		}
 
 		/*
 		 * If someone cleaned up this transaction while we slept, we're
diff --git a/fs/mpage.c b/fs/mpage.c
index b92c0e64aefa..bb9aebe93862 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -79,8 +79,11 @@ static int mpage_end_io_write(struct bio *bio, unsigned int bytes_done, int err)
 		if (--bvec >= bio->bi_io_vec)
 			prefetchw(&bvec->bv_page->flags);
 
-		if (!uptodate)
+		if (!uptodate){
 			SetPageError(page);
+			if (page->mapping)
+				set_bit(AS_EIO, &page->mapping->flags);
+		}
 		end_page_writeback(page);
 	} while (bvec >= bio->bi_io_vec);
 	bio_put(bio);
diff --git a/fs/namei.c b/fs/namei.c
index dd78f01b6de8..a7f7f44119b3 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -493,12 +493,21 @@ fail:
 	return PTR_ERR(link);
 }
 
-static inline int __do_follow_link(struct dentry *dentry, struct nameidata *nd)
+struct path {
+	struct vfsmount *mnt;
+	struct dentry *dentry;
+};
+
+static inline int __do_follow_link(struct path *path, struct nameidata *nd)
 {
 	int error;
+	struct dentry *dentry = path->dentry;
 
-	touch_atime(nd->mnt, dentry);
+	touch_atime(path->mnt, dentry);
 	nd_set_link(nd, NULL);
+
+	if (path->mnt == nd->mnt)
+		mntget(path->mnt);
 	error = dentry->d_inode->i_op->follow_link(dentry, nd);
 	if (!error) {
 		char *s = nd_get_link(nd);
@@ -507,6 +516,8 @@ static inline int __do_follow_link(struct dentry *dentry, struct nameidata *nd)
 		if (dentry->d_inode->i_op->put_link)
 			dentry->d_inode->i_op->put_link(dentry, nd);
 	}
+	dput(dentry);
+	mntput(path->mnt);
 
 	return error;
 }
@@ -518,7 +529,7 @@ static inline int __do_follow_link(struct dentry *dentry, struct nameidata *nd)
  * Without that kind of total limit, nasty chains of consecutive
  * symlinks can cause almost arbitrarily long lookups. 
  */
-static inline int do_follow_link(struct dentry *dentry, struct nameidata *nd)
+static inline int do_follow_link(struct path *path, struct nameidata *nd)
 {
 	int err = -ELOOP;
 	if (current->link_count >= MAX_NESTED_LINKS)
@@ -527,17 +538,20 @@ static inline int do_follow_link(struct dentry *dentry, struct nameidata *nd)
 		goto loop;
 	BUG_ON(nd->depth >= MAX_NESTED_LINKS);
 	cond_resched();
-	err = security_inode_follow_link(dentry, nd);
+	err = security_inode_follow_link(path->dentry, nd);
 	if (err)
 		goto loop;
 	current->link_count++;
 	current->total_link_count++;
 	nd->depth++;
-	err = __do_follow_link(dentry, nd);
+	err = __do_follow_link(path, nd);
 	current->link_count--;
 	nd->depth--;
 	return err;
 loop:
+	dput(path->dentry);
+	if (path->mnt != nd->mnt)
+		mntput(path->mnt);
 	path_release(nd);
 	return err;
 }
@@ -565,87 +579,91 @@ int follow_up(struct vfsmount **mnt, struct dentry **dentry)
 /* no need for dcache_lock, as serialization is taken care in
  * namespace.c
  */
-static int follow_mount(struct vfsmount **mnt, struct dentry **dentry)
+static int __follow_mount(struct path *path)
 {
 	int res = 0;
+	while (d_mountpoint(path->dentry)) {
+		struct vfsmount *mounted = lookup_mnt(path->mnt, path->dentry);
+		if (!mounted)
+			break;
+		dput(path->dentry);
+		if (res)
+			mntput(path->mnt);
+		path->mnt = mounted;
+		path->dentry = dget(mounted->mnt_root);
+		res = 1;
+	}
+	return res;
+}
+
+static void follow_mount(struct vfsmount **mnt, struct dentry **dentry)
+{
 	while (d_mountpoint(*dentry)) {
 		struct vfsmount *mounted = lookup_mnt(*mnt, *dentry);
 		if (!mounted)
 			break;
+		dput(*dentry);
 		mntput(*mnt);
 		*mnt = mounted;
-		dput(*dentry);
 		*dentry = dget(mounted->mnt_root);
-		res = 1;
 	}
-	return res;
 }
 
 /* no need for dcache_lock, as serialization is taken care in
  * namespace.c
  */
-static inline int __follow_down(struct vfsmount **mnt, struct dentry **dentry)
+int follow_down(struct vfsmount **mnt, struct dentry **dentry)
 {
 	struct vfsmount *mounted;
 
 	mounted = lookup_mnt(*mnt, *dentry);
 	if (mounted) {
+		dput(*dentry);
 		mntput(*mnt);
 		*mnt = mounted;
-		dput(*dentry);
 		*dentry = dget(mounted->mnt_root);
 		return 1;
 	}
 	return 0;
 }
 
-int follow_down(struct vfsmount **mnt, struct dentry **dentry)
-{
-	return __follow_down(mnt,dentry);
-}
- 
-static inline void follow_dotdot(struct vfsmount **mnt, struct dentry **dentry)
+static inline void follow_dotdot(struct nameidata *nd)
 {
 	while(1) {
 		struct vfsmount *parent;
-		struct dentry *old = *dentry;
+		struct dentry *old = nd->dentry;
 
                 read_lock(&current->fs->lock);
-		if (*dentry == current->fs->root &&
-		    *mnt == current->fs->rootmnt) {
+		if (nd->dentry == current->fs->root &&
+		    nd->mnt == current->fs->rootmnt) {
                         read_unlock(&current->fs->lock);
 			break;
 		}
                 read_unlock(&current->fs->lock);
 		spin_lock(&dcache_lock);
-		if (*dentry != (*mnt)->mnt_root) {
-			*dentry = dget((*dentry)->d_parent);
+		if (nd->dentry != nd->mnt->mnt_root) {
+			nd->dentry = dget(nd->dentry->d_parent);
 			spin_unlock(&dcache_lock);
 			dput(old);
 			break;
 		}
 		spin_unlock(&dcache_lock);
 		spin_lock(&vfsmount_lock);
-		parent = (*mnt)->mnt_parent;
-		if (parent == *mnt) {
+		parent = nd->mnt->mnt_parent;
+		if (parent == nd->mnt) {
 			spin_unlock(&vfsmount_lock);
 			break;
 		}
 		mntget(parent);
-		*dentry = dget((*mnt)->mnt_mountpoint);
+		nd->dentry = dget(nd->mnt->mnt_mountpoint);
 		spin_unlock(&vfsmount_lock);
 		dput(old);
-		mntput(*mnt);
-		*mnt = parent;
+		mntput(nd->mnt);
+		nd->mnt = parent;
 	}
-	follow_mount(mnt, dentry);
+	follow_mount(&nd->mnt, &nd->dentry);
 }
 
-struct path {
-	struct vfsmount *mnt;
-	struct dentry *dentry;
-};
-
 /*
  *  It's more convoluted than I'd like it to be, but... it's still fairly
  *  small and for now I'd prefer to have fast path as straight as possible.
@@ -664,6 +682,7 @@ static int do_lookup(struct nameidata *nd, struct qstr *name,
 done:
 	path->mnt = mnt;
 	path->dentry = dentry;
+	__follow_mount(path);
 	return 0;
 
 need_lookup:
@@ -751,7 +770,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
 			case 2:	
 				if (this.name[1] != '.')
 					break;
-				follow_dotdot(&nd->mnt, &nd->dentry);
+				follow_dotdot(nd);
 				inode = nd->dentry->d_inode;
 				/* fallthrough */
 			case 1:
@@ -771,8 +790,6 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
 		err = do_lookup(nd, &this, &next);
 		if (err)
 			break;
-		/* Check mountpoints.. */
-		follow_mount(&next.mnt, &next.dentry);
 
 		err = -ENOENT;
 		inode = next.dentry->d_inode;
@@ -783,10 +800,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
 			goto out_dput;
 
 		if (inode->i_op->follow_link) {
-			mntget(next.mnt);
-			err = do_follow_link(next.dentry, nd);
-			dput(next.dentry);
-			mntput(next.mnt);
+			err = do_follow_link(&next, nd);
 			if (err)
 				goto return_err;
 			err = -ENOENT;
@@ -798,6 +812,8 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
 				break;
 		} else {
 			dput(nd->dentry);
+			if (nd->mnt != next.mnt)
+				mntput(nd->mnt);
 			nd->mnt = next.mnt;
 			nd->dentry = next.dentry;
 		}
@@ -819,7 +835,7 @@ last_component:
 			case 2:	
 				if (this.name[1] != '.')
 					break;
-				follow_dotdot(&nd->mnt, &nd->dentry);
+				follow_dotdot(nd);
 				inode = nd->dentry->d_inode;
 				/* fallthrough */
 			case 1:
@@ -833,19 +849,17 @@ last_component:
 		err = do_lookup(nd, &this, &next);
 		if (err)
 			break;
-		follow_mount(&next.mnt, &next.dentry);
 		inode = next.dentry->d_inode;
 		if ((lookup_flags & LOOKUP_FOLLOW)
 		    && inode && inode->i_op && inode->i_op->follow_link) {
-			mntget(next.mnt);
-			err = do_follow_link(next.dentry, nd);
-			dput(next.dentry);
-			mntput(next.mnt);
+			err = do_follow_link(&next, nd);
 			if (err)
 				goto return_err;
 			inode = nd->dentry->d_inode;
 		} else {
 			dput(nd->dentry);
+			if (nd->mnt != next.mnt)
+				mntput(nd->mnt);
 			nd->mnt = next.mnt;
 			nd->dentry = next.dentry;
 		}
@@ -885,6 +899,8 @@ return_base:
 		return 0;
 out_dput:
 		dput(next.dentry);
+		if (nd->mnt != next.mnt)
+			mntput(next.mnt);
 		break;
 	}
 	path_release(nd);
@@ -1398,7 +1414,7 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
 int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
 {
 	int acc_mode, error = 0;
-	struct dentry *dentry;
+	struct path path;
 	struct dentry *dir;
 	int count = 0;
 
@@ -1442,23 +1458,24 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
 	dir = nd->dentry;
 	nd->flags &= ~LOOKUP_PARENT;
 	down(&dir->d_inode->i_sem);
-	dentry = __lookup_hash(&nd->last, nd->dentry, nd);
+	path.dentry = __lookup_hash(&nd->last, nd->dentry, nd);
+	path.mnt = nd->mnt;
 
 do_last:
-	error = PTR_ERR(dentry);
-	if (IS_ERR(dentry)) {
+	error = PTR_ERR(path.dentry);
+	if (IS_ERR(path.dentry)) {
 		up(&dir->d_inode->i_sem);
 		goto exit;
 	}
 
 	/* Negative dentry, just create the file */
-	if (!dentry->d_inode) {
+	if (!path.dentry->d_inode) {
 		if (!IS_POSIXACL(dir->d_inode))
 			mode &= ~current->fs->umask;
-		error = vfs_create(dir->d_inode, dentry, mode, nd);
+		error = vfs_create(dir->d_inode, path.dentry, mode, nd);
 		up(&dir->d_inode->i_sem);
 		dput(nd->dentry);
-		nd->dentry = dentry;
+		nd->dentry = path.dentry;
 		if (error)
 			goto exit;
 		/* Don't check for write permission, don't truncate */
@@ -1476,22 +1493,24 @@ do_last:
 	if (flag & O_EXCL)
 		goto exit_dput;
 
-	if (d_mountpoint(dentry)) {
+	if (__follow_mount(&path)) {
 		error = -ELOOP;
 		if (flag & O_NOFOLLOW)
 			goto exit_dput;
-		while (__follow_down(&nd->mnt,&dentry) && d_mountpoint(dentry));
 	}
 	error = -ENOENT;
-	if (!dentry->d_inode)
+	if (!path.dentry->d_inode)
 		goto exit_dput;
-	if (dentry->d_inode->i_op && dentry->d_inode->i_op->follow_link)
+	if (path.dentry->d_inode->i_op && path.dentry->d_inode->i_op->follow_link)
 		goto do_link;
 
 	dput(nd->dentry);
-	nd->dentry = dentry;
+	nd->dentry = path.dentry;
+	if (nd->mnt != path.mnt)
+		mntput(nd->mnt);
+	nd->mnt = path.mnt;
 	error = -EISDIR;
-	if (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))
+	if (path.dentry->d_inode && S_ISDIR(path.dentry->d_inode->i_mode))
 		goto exit;
 ok:
 	error = may_open(nd, acc_mode, flag);
@@ -1500,7 +1519,9 @@ ok:
 	return 0;
 
 exit_dput:
-	dput(dentry);
+	dput(path.dentry);
+	if (nd->mnt != path.mnt)
+		mntput(path.mnt);
 exit:
 	path_release(nd);
 	return error;
@@ -1520,18 +1541,15 @@ do_link:
 	 * are done. Procfs-like symlinks just set LAST_BIND.
 	 */
 	nd->flags |= LOOKUP_PARENT;
-	error = security_inode_follow_link(dentry, nd);
+	error = security_inode_follow_link(path.dentry, nd);
 	if (error)
 		goto exit_dput;
-	error = __do_follow_link(dentry, nd);
-	dput(dentry);
+	error = __do_follow_link(&path, nd);
 	if (error)
 		return error;
 	nd->flags &= ~LOOKUP_PARENT;
-	if (nd->last_type == LAST_BIND) {
-		dentry = nd->dentry;
+	if (nd->last_type == LAST_BIND)
 		goto ok;
-	}
 	error = -EISDIR;
 	if (nd->last_type != LAST_NORM)
 		goto exit;
@@ -1546,7 +1564,8 @@ do_link:
 	}
 	dir = nd->dentry;
 	down(&dir->d_inode->i_sem);
-	dentry = __lookup_hash(&nd->last, nd->dentry, nd);
+	path.dentry = __lookup_hash(&nd->last, nd->dentry, nd);
+	path.mnt = nd->mnt;
 	putname(nd->last.name);
 	goto do_last;
 }
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 73f96acd5d37..ff6155f5e8d9 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -528,19 +528,39 @@ static inline void nfs_renew_times(struct dentry * dentry)
 	dentry->d_time = jiffies;
 }
 
+/*
+ * Return the intent data that applies to this particular path component
+ *
+ * Note that the current set of intents only apply to the very last
+ * component of the path.
+ * We check for this using LOOKUP_CONTINUE and LOOKUP_PARENT.
+ */
+static inline unsigned int nfs_lookup_check_intent(struct nameidata *nd, unsigned int mask)
+{
+	if (nd->flags & (LOOKUP_CONTINUE|LOOKUP_PARENT))
+		return 0;
+	return nd->flags & mask;
+}
+
+/*
+ * Inode and filehandle revalidation for lookups.
+ *
+ * We force revalidation in the cases where the VFS sets LOOKUP_REVAL,
+ * or if the intent information indicates that we're about to open this
+ * particular file and the "nocto" mount flag is not set.
+ *
+ */
 static inline
 int nfs_lookup_verify_inode(struct inode *inode, struct nameidata *nd)
 {
 	struct nfs_server *server = NFS_SERVER(inode);
 
 	if (nd != NULL) {
-		int ndflags = nd->flags;
 		/* VFS wants an on-the-wire revalidation */
-		if (ndflags & LOOKUP_REVAL)
+		if (nd->flags & LOOKUP_REVAL)
 			goto out_force;
 		/* This is an open(2) */
-		if ((ndflags & LOOKUP_OPEN) &&
-				!(ndflags & LOOKUP_CONTINUE) &&
+		if (nfs_lookup_check_intent(nd, LOOKUP_OPEN) != 0 &&
 				!(server->flags & NFS_MOUNT_NOCTO))
 			goto out_force;
 	}
@@ -560,12 +580,8 @@ static inline
 int nfs_neg_need_reval(struct inode *dir, struct dentry *dentry,
 		       struct nameidata *nd)
 {
-	int ndflags = 0;
-
-	if (nd)
-		ndflags = nd->flags;
 	/* Don't revalidate a negative dentry if we're creating a new file */
-	if ((ndflags & LOOKUP_CREATE) && !(ndflags & LOOKUP_CONTINUE))
+	if (nd != NULL && nfs_lookup_check_intent(nd, LOOKUP_CREATE) != 0)
 		return 0;
 	return !nfs_check_verifier(dir, dentry);
 }
@@ -700,12 +716,16 @@ struct dentry_operations nfs_dentry_operations = {
 	.d_iput		= nfs_dentry_iput,
 };
 
+/*
+ * Use intent information to check whether or not we're going to do
+ * an O_EXCL create using this path component.
+ */
 static inline
 int nfs_is_exclusive_create(struct inode *dir, struct nameidata *nd)
 {
 	if (NFS_PROTO(dir)->version == 2)
 		return 0;
-	if (!nd || (nd->flags & LOOKUP_CONTINUE) || !(nd->flags & LOOKUP_CREATE))
+	if (nd == NULL || nfs_lookup_check_intent(nd, LOOKUP_CREATE) == 0)
 		return 0;
 	return (nd->intent.open.flags & O_EXCL) != 0;
 }
@@ -772,12 +792,13 @@ struct dentry_operations nfs4_dentry_operations = {
 	.d_iput		= nfs_dentry_iput,
 };
 
+/*
+ * Use intent information to determine whether we need to substitute
+ * the NFSv4-style stateful OPEN for the LOOKUP call
+ */
 static int is_atomic_open(struct inode *dir, struct nameidata *nd)
 {
-	if (!nd)
-		return 0;
-	/* Check that we are indeed trying to open this file */
-	if ((nd->flags & LOOKUP_CONTINUE) || !(nd->flags & LOOKUP_OPEN))
+	if (nd == NULL || nfs_lookup_check_intent(nd, LOOKUP_OPEN) == 0)
 		return 0;
 	/* NFS does not (yet) have a stateful open for directories */
 	if (nd->flags & LOOKUP_DIRECTORY)
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index 67423c696c0a..6fd57f154197 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -12,15 +12,8 @@
 #include <asm/uaccess.h>
 
 #ifndef HAVE_ARCH_DEVTREE_FIXUPS
-static inline void set_node_proc_entry(struct device_node *np, struct proc_dir_entry *de)
-{
-}
-
-static void inline set_node_name_link(struct device_node *np, struct proc_dir_entry *de)
-{
-}
-
-static void inline set_node_addr_link(struct device_node *np, struct proc_dir_entry *de)
+static inline void set_node_proc_entry(struct device_node *np,
+				       struct proc_dir_entry *de)
 {
 }
 #endif
@@ -58,89 +51,67 @@ static int property_read_proc(char *page, char **start, off_t off,
 /*
  * Process a node, adding entries for its children and its properties.
  */
-void proc_device_tree_add_node(struct device_node *np, struct proc_dir_entry *de)
+void proc_device_tree_add_node(struct device_node *np,
+			       struct proc_dir_entry *de)
 {
 	struct property *pp;
 	struct proc_dir_entry *ent;
-	struct device_node *child, *sib;
-	const char *p, *at;
-	int l;
-	struct proc_dir_entry *list, **lastp, *al;
+	struct device_node *child;
+	struct proc_dir_entry *list = NULL, **lastp;
+	const char *p;
 
 	set_node_proc_entry(np, de);
 	lastp = &list;
-	for (pp = np->properties; pp != 0; pp = pp->next) {
-		/*
-		 * Unfortunately proc_register puts each new entry
-		 * at the beginning of the list.  So we rearrange them.
-		 */
-		ent = create_proc_read_entry(pp->name, strncmp(pp->name, "security-", 9) ?
-					     S_IRUGO : S_IRUSR, de, property_read_proc, pp);
-		if (ent == 0)
-			break;
-		if (!strncmp(pp->name, "security-", 9))
-		     ent->size = 0; /* don't leak number of password chars */
-		else
-		     ent->size = pp->length;
-		*lastp = ent;
-		lastp = &ent->next;
-	}
-	child = NULL;
-	while ((child = of_get_next_child(np, child))) {
+	for (child = NULL; (child = of_get_next_child(np, child));) {
 		p = strrchr(child->full_name, '/');
 		if (!p)
 			p = child->full_name;
 		else
 			++p;
-		/* chop off '@0' if the name ends with that */
-		l = strlen(p);
-		if (l > 2 && p[l-2] == '@' && p[l-1] == '0')
-			l -= 2;
 		ent = proc_mkdir(p, de);
 		if (ent == 0)
 			break;
 		*lastp = ent;
+		ent->next = NULL;
 		lastp = &ent->next;
 		proc_device_tree_add_node(child, ent);
-
-		/*
-		 * If we left the address part on the name, consider
-		 * adding symlinks from the name and address parts.
-		 */
-		if (p[l] != 0 || (at = strchr(p, '@')) == 0)
-			continue;
-
+	}
+	of_node_put(child);
+	for (pp = np->properties; pp != 0; pp = pp->next) {
 		/*
-		 * If this is the first node with a given name property,
-		 * add a symlink with the name property as its name.
+		 * Yet another Apple device-tree bogosity: on some machines,
+		 * they have properties & nodes with the same name. Those
+		 * properties are quite unimportant for us though, thus we
+		 * simply "skip" them here, but we do have to check.
 		 */
-		sib = NULL;
-		while ((sib = of_get_next_child(np, sib)) && sib != child)
-			if (sib->name && strcmp(sib->name, child->name) == 0)
-				break;
-		if (sib == child && strncmp(p, child->name, l) != 0) {
-			al = proc_symlink(child->name, de, ent->name);
-			if (al == 0) {
-				of_node_put(sib);
+		for (ent = list; ent != NULL; ent = ent->next)
+			if (!strcmp(ent->name, pp->name))
 				break;
-			}
-			set_node_name_link(child, al);
-			*lastp = al;
-			lastp = &al->next;
+		if (ent != NULL) {
+			printk(KERN_WARNING "device-tree: property \"%s\" name"
+			       " conflicts with node in %s\n", pp->name,
+			       np->full_name);
+			continue;
 		}
-		of_node_put(sib);
+
 		/*
-		 * Add another directory with the @address part as its name.
+		 * Unfortunately proc_register puts each new entry
+		 * at the beginning of the list.  So we rearrange them.
 		 */
-		al = proc_symlink(at, de, ent->name);
-		if (al == 0)
+		ent = create_proc_read_entry(pp->name,
+					     strncmp(pp->name, "security-", 9)
+					     ? S_IRUGO : S_IRUSR, de,
+					     property_read_proc, pp);
+		if (ent == 0)
 			break;
-		set_node_addr_link(child, al);
-		*lastp = al;
-		lastp = &al->next;
+		if (!strncmp(pp->name, "security-", 9))
+		     ent->size = 0; /* don't leak number of password chars */
+		else
+		     ent->size = pp->length;
+		ent->next = NULL;
+		*lastp = ent;
+		lastp = &ent->next;
 	}
-	of_node_put(child);
-	*lastp = NULL;
 	de->subdir = list;
 }
 
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index 457a8fe28575..85d8dbe843f1 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -46,7 +46,7 @@
 #endif
 
 /* How many days come before each month (0-12).  */
-const unsigned short int __mon_yday[2][13] =
+static const unsigned short int __mon_yday[2][13] =
 {
 	/* Normal years.  */
 	{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },