Pull now into release branch

[pandora-kernel.git] / fs / exec.c

diff --git a/fs/exec.c b/fs/exec.c
index 7bdea79..073b0b8 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -50,7 +50,6 @@
 #include <linux/tsacct_kern.h>
 #include <linux/cn_proc.h>
 #include <linux/audit.h>
-#include <linux/signalfd.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
@@ -779,19 +778,11 @@ static int de_thread(struct task_struct *tsk)
        struct task_struct *leader = NULL;
        int count;
 
-       /*
-        * Tell all the sighand listeners that this sighand has
-        * been detached. The signalfd_detach() function grabs the
-        * sighand lock, if signal listeners are present on the sighand.
-        */
-       signalfd_detach(tsk);
-
        /*
         * If we don't share sighandlers, then we aren't sharing anything
         * and we can just re-use it all.
         */
        if (atomic_read(&oldsighand->count) <= 1) {
-               BUG_ON(atomic_read(&sig->count) != 1);
                exit_itimers(sig);
                return 0;
        }
@@ -934,8 +925,6 @@ no_thread_group:
        if (leader)
                release_task(leader);
 
-       BUG_ON(atomic_read(&sig->count) != 1);
-
        if (atomic_read(&oldsighand->count) == 1) {
                /*
                 * Now that we nuked the rest of the thread group,
@@ -1084,9 +1073,12 @@ int flush_old_exec(struct linux_binprm * bprm)
         */
        current->mm->task_size = TASK_SIZE;
 
-       if (bprm->e_uid != current->euid || bprm->e_gid != current->egid || 
-           file_permission(bprm->file, MAY_READ) ||
-           (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)) {
+       if (bprm->e_uid != current->euid || bprm->e_gid != current->egid) {
+               suid_keys(current);
+               set_dumpable(current->mm, suid_dumpable);
+               current->pdeath_signal = 0;
+       } else if (file_permission(bprm->file, MAY_READ) ||
+                       (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)) {
                suid_keys(current);
                set_dumpable(current->mm, suid_dumpable);
        }
@@ -1177,8 +1169,10 @@ void compute_creds(struct linux_binprm *bprm)
 {
        int unsafe;
 
-       if (bprm->e_uid != current->uid)
+       if (bprm->e_uid != current->uid) {
                suid_keys(current);
+               current->pdeath_signal = 0;
+       }
        exec_keys(current);
 
        task_lock(current);