Update to 3.4-final.

[linux-flexiantxendom0-3.2.10.git] / fs / attr.c

diff --git a/fs/attr.c b/fs/attr.c
index 7ca4181..73f69a6 100644 (file)
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -5,7 +5,7 @@
  *  changes by Thomas Schoebel-Theuer
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/time.h>
 #include <linux/mm.h>
 #include <linux/string.h>
@@ -13,6 +13,7 @@
 #include <linux/fsnotify.h>
 #include <linux/fcntl.h>
 #include <linux/security.h>
+#include <linux/evm.h>
 
 /**
  * inode_change_ok - check if attribute changes to an inode are allowed
@@ -59,7 +60,7 @@ int inode_change_ok(const struct inode *inode, struct iattr *attr)
 
        /* Make sure a caller can chmod. */
        if (ia_valid & ATTR_MODE) {
-               if (!is_owner_or_cap(inode))
+               if (!inode_owner_or_capable(inode))
                        return -EPERM;
                /* Also check the setgid bit! */
                if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid :
@@ -69,7 +70,7 @@ int inode_change_ok(const struct inode *inode, struct iattr *attr)
 
        /* Check for setting the inode time. */
        if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) {
-               if (!is_owner_or_cap(inode))
+               if (!inode_owner_or_capable(inode))
                        return -EPERM;
        }
 
@@ -128,7 +129,7 @@ EXPORT_SYMBOL(inode_newsize_ok);
  * setattr_copy must be called with i_mutex held.
  *
  * setattr_copy updates the inode's metadata with that specified
- * in attr. Noticably missing is inode size update, which is more complex
+ * in attr. Noticeably missing is inode size update, which is more complex
  * as it requires pagecache updates.
  *
  * The inode is not marked as dirty after this operation. The rationale is
@@ -165,7 +166,7 @@ EXPORT_SYMBOL(setattr_copy);
 int notify_change(struct dentry * dentry, struct iattr * attr)
 {
        struct inode *inode = dentry->d_inode;
-       mode_t mode = inode->i_mode;
+       umode_t mode = inode->i_mode;
        int error;
        struct timespec now;
        unsigned int ia_valid = attr->ia_valid;
@@ -175,6 +176,13 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
                        return -EPERM;
        }
 
+       if ((ia_valid & ATTR_MODE)) {
+               umode_t amode = attr->ia_mode;
+               /* Flag setting protected by i_mutex */
+               if (is_sxid(amode))
+                       inode->i_flags &= ~S_NOSEC;
+       }
+
        now = current_fs_time(inode->i_sb);
 
        attr->ia_ctime = now;
@@ -225,19 +233,15 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
        if (error)
                return error;
 
-       if (ia_valid & ATTR_SIZE)
-               down_write(&dentry->d_inode->i_alloc_sem);
-
        if (inode->i_op->setattr)
                error = inode->i_op->setattr(dentry, attr);
        else
                error = simple_setattr(dentry, attr);
 
-       if (ia_valid & ATTR_SIZE)
-               up_write(&dentry->d_inode->i_alloc_sem);
-
-       if (!error)
+       if (!error) {
                fsnotify_change(dentry, ia_valid);
+               evm_inode_post_setattr(dentry, ia_valid);
+       }
 
        return error;
 }