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| author | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
| commit | b32e3dc7860d00124fa432dba09667e647cb9bcc (patch) | |
| tree | 2fa6e56f389431dfb84609d3d7572cad76e88e71 /arch/x86/kernel/process_64.c | |
| parent | 6604271c5bc658a6067ed0c3deba4d89e0e50382 (diff) | |
| parent | 96120d86fe302c006259baee9061eea9e1b9e486 (diff) | |
Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index bd387e8f73b..6c9dd922ac0 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -501,6 +501,10 @@ void set_personality_64bit(void) /* Make sure to be in 64bit mode */ clear_thread_flag(TIF_IA32); + /* Ensure the corresponding mm is not marked. */ + if (current->mm) + current->mm->context.ia32_compat = 0; + /* TBD: overwrites user setup. Should have two bits. But 64bit processes have always behaved this way, so it's not too bad. The main problem is just that @@ -516,6 +520,10 @@ void set_personality_ia32(void) set_thread_flag(TIF_IA32); current->personality |= force_personality32; + /* Mark the associated mm as containing 32-bit tasks. */ + if (current->mm) + current->mm->context.ia32_compat = 1; + /* Prepare the first "return" to user space */ current_thread_info()->status |= TS_COMPAT; } |