Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (107 commits)
  vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp
  isofs: Remove global fs lock
  jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory
  fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.
  mm/truncate.c: fix build for CONFIG_BLOCK not enabled
  fs:update the NOTE of the file_operations structure
  Remove dead code in dget_parent()
  AFS: Fix silly characters in a comment
  switch d_add_ci() to d_splice_alias() in "found negative" case as well
  simplify gfs2_lookup()
  jfs_lookup(): don't bother with . or ..
  get rid of useless dget_parent() in btrfs rename() and link()
  get rid of useless dget_parent() in fs/btrfs/ioctl.c
  fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers
  drivers: fix up various ->llseek() implementations
  fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek
  Ext4: handle SEEK_HOLE/SEEK_DATA generically
  Btrfs: implement our own ->llseek
  fs: add SEEK_HOLE and SEEK_DATA flags
  reiserfs: make reiserfs default to barrier=flush
  ...

Fix up trivial conflicts in fs/xfs/linux-2.6/xfs_super.c due to the new
shrinker callout for the inode cache, that clashed with the xfs code to
start the periodic workers later.

1 files changed, 11 insertions, 3 deletions

diff --git a/fs/exec.c b/fs/exec.c
index d9576f261815..842d5700c155 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1114,6 +1114,13 @@ out:
 }
 EXPORT_SYMBOL(flush_old_exec);
 
+void would_dump(struct linux_binprm *bprm, struct file *file)
+{
+        if (inode_permission(file->f_path.dentry->d_inode, MAY_READ) < 0)
+                bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP;
+}
+EXPORT_SYMBOL(would_dump);
+
 void setup_new_exec(struct linux_binprm * bprm)
 {
         int i, ch;
@@ -1153,9 +1160,10 @@ void setup_new_exec(struct linux_binprm * bprm)
         if (bprm->cred->uid != current_euid() ||
             bprm->cred->gid != current_egid()) {
                 current->pdeath_signal = 0;
-        } else if (file_permission(bprm->file, MAY_READ) ||
-                   bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP) {
-                set_dumpable(current->mm, suid_dumpable);
+        } else {
+                would_dump(bprm, bprm->file);
+                if (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)
+                        set_dumpable(current->mm, suid_dumpable);
         }
 
         /*