Merge commit 'origin/master' into next

Manual merge of:
	drivers/char/hvc_console.c
	drivers/char/hvc_console.h

7 files changed, 66 insertions, 30 deletions

diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 14ac4806e291..eeb4986ea7db 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -348,7 +348,17 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
         dir = dget_parent(object->dentry);
 
         mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
-        ret = cachefiles_bury_object(cache, dir, object->dentry);
+
+        /* we need to check that our parent is _still_ our parent - it may have
+         * been renamed */
+        if (dir == object->dentry->d_parent) {
+                ret = cachefiles_bury_object(cache, dir, object->dentry);
+        } else {
+                /* it got moved, presumably by cachefilesd culling it, so it's
+                 * no longer in the key path and we can ignore it */
+                mutex_unlock(&dir->d_inode->i_mutex);
+                ret = 0;
+        }
 
         dput(dir);
         _leave(" = %d", ret);
diff --git a/fs/exec.c b/fs/exec.c
index e95c692ef0e4..cce6bbdbdbb1 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -637,7 +637,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
          * will align it up.
          */
         rlim_stack = rlimit(RLIMIT_STACK) & PAGE_MASK;
-        rlim_stack = min(rlim_stack, stack_size);
 #ifdef CONFIG_STACK_GROWSUP
         if (stack_size + stack_expand > rlim_stack)
                 stack_base = vma->vm_start + rlim_stack;
diff --git a/fs/namei.c b/fs/namei.c
index d62fdc875f22..a4855af776a8 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -823,6 +823,17 @@ fail:
 }
 
 /*
+ * This is a temporary kludge to deal with "automount" symlinks; proper
+ * solution is to trigger them on follow_mount(), so that do_lookup()
+ * would DTRT.  To be killed before 2.6.34-final.
+ */
+static inline int follow_on_final(struct inode *inode, unsigned lookup_flags)
+{
+        return inode && unlikely(inode->i_op->follow_link) &&
+                ((lookup_flags & LOOKUP_FOLLOW) || S_ISDIR(inode->i_mode));
+}
+
+/*
  * Name resolution.
  * This is the basic name resolution function, turning a pathname into
  * the final dentry. We expect 'base' to be positive and a directory.
@@ -942,8 +953,7 @@ last_component:
                 if (err)
                         break;
                 inode = next.dentry->d_inode;
-                if ((lookup_flags & LOOKUP_FOLLOW)
-                    && inode && inode->i_op->follow_link) {
+                if (follow_on_final(inode, lookup_flags)) {
                         err = do_follow_link(&next, nd);
                         if (err)
                                 goto return_err;
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 97d79eff6b7f..8715d194561a 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -752,7 +752,8 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
                             flags, current_cred());
         if (IS_ERR(*filp))
                 host_err = PTR_ERR(*filp);
-        host_err = ima_file_check(*filp, access);
+        else
+                host_err = ima_file_check(*filp, access);
 out_nfserr:
         err = nfserrno(host_err);
 out:
diff --git a/fs/proc/base.c b/fs/proc/base.c
index e42bbd843ed1..58324c299165 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2369,16 +2369,30 @@ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
         struct pid_namespace *ns = dentry->d_sb->s_fs_info;
         pid_t tgid = task_tgid_nr_ns(current, ns);
-        char tmp[PROC_NUMBUF];
-        if (!tgid)
-                return ERR_PTR(-ENOENT);
-        sprintf(tmp, "%d", task_tgid_nr_ns(current, ns));
-        return ERR_PTR(vfs_follow_link(nd,tmp));
+        char *name = ERR_PTR(-ENOENT);
+        if (tgid) {
+                name = __getname();
+                if (!name)
+                        name = ERR_PTR(-ENOMEM);
+                else
+                        sprintf(name, "%d", tgid);
+        }
+        nd_set_link(nd, name);
+        return NULL;
+}
+
+static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd,
+                                void *cookie)
+{
+        char *s = nd_get_link(nd);
+        if (!IS_ERR(s))
+                __putname(s);
 }
 
 static const struct inode_operations proc_self_inode_operations = {
         .readlink       = proc_self_readlink,
         .follow_link    = proc_self_follow_link,
+        .put_link       = proc_self_put_link,
 };
 
 /*
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index 123257bb356b..f8650dce74fb 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -10,16 +10,19 @@
 #include <linux/seq_file.h>
 #include <linux/stat.h>
 #include <linux/string.h>
+#include <linux/of.h>
+#include <linux/module.h>
 #include <asm/prom.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
-#ifndef HAVE_ARCH_DEVTREE_FIXUPS
 static inline void set_node_proc_entry(struct device_node *np,
                                        struct proc_dir_entry *de)
 {
-}
+#ifdef HAVE_ARCH_DEVTREE_FIXUPS
+        np->pde = de;
 #endif
+}
 
 static struct proc_dir_entry *proc_device_tree;
 
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 220b758523ae..6a06a1d1ea7b 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -81,24 +81,23 @@ int sysfs_sd_setattr(struct sysfs_dirent *sd, struct iattr * iattr)
                 if (!sd_attrs)
                         return -ENOMEM;
                 sd->s_iattr = sd_attrs;
-        } else {
-                /* attributes were changed at least once in past */
-                iattrs = &sd_attrs->ia_iattr;
-
-                if (ia_valid & ATTR_UID)
-                        iattrs->ia_uid = iattr->ia_uid;
-                if (ia_valid & ATTR_GID)
-                        iattrs->ia_gid = iattr->ia_gid;
-                if (ia_valid & ATTR_ATIME)
-                        iattrs->ia_atime = iattr->ia_atime;
-                if (ia_valid & ATTR_MTIME)
-                        iattrs->ia_mtime = iattr->ia_mtime;
-                if (ia_valid & ATTR_CTIME)
-                        iattrs->ia_ctime = iattr->ia_ctime;
-                if (ia_valid & ATTR_MODE) {
-                        umode_t mode = iattr->ia_mode;
-                        iattrs->ia_mode = sd->s_mode = mode;
-                }
+        }
+        /* attributes were changed at least once in past */
+        iattrs = &sd_attrs->ia_iattr;
+
+        if (ia_valid & ATTR_UID)
+                iattrs->ia_uid = iattr->ia_uid;
+        if (ia_valid & ATTR_GID)
+                iattrs->ia_gid = iattr->ia_gid;
+        if (ia_valid & ATTR_ATIME)
+                iattrs->ia_atime = iattr->ia_atime;
+        if (ia_valid & ATTR_MTIME)
+                iattrs->ia_mtime = iattr->ia_mtime;
+        if (ia_valid & ATTR_CTIME)
+                iattrs->ia_ctime = iattr->ia_ctime;
+        if (ia_valid & ATTR_MODE) {
+                umode_t mode = iattr->ia_mode;
+                iattrs->ia_mode = sd->s_mode = mode;
         }
         return 0;
 }