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| author | Steve French <sfrench@us.ibm.com> | 2005-09-06 15:47:31 -0700 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-09-06 15:47:31 -0700 |
| commit | c08319a9d50b5c9cb4fdb33728bd16497cf4ddd3 (patch) | |
| tree | 5fbec9030029da1ec387c18b85f26f19ee50da44 /arch/i386/kernel/ioport.c | |
| parent | bfa0d75a1eee59f0577e3c1697ff570b77581a35 (diff) | |
| parent | 4706df3d3c42af802597d82c8b1542c3d52eab23 (diff) | |
| download | lwn-c08319a9d50b5c9cb4fdb33728bd16497cf4ddd3.tar.gz lwn-c08319a9d50b5c9cb4fdb33728bd16497cf4ddd3.zip | |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'arch/i386/kernel/ioport.c')
| -rw-r--r-- | arch/i386/kernel/ioport.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/i386/kernel/ioport.c b/arch/i386/kernel/ioport.c index 8b25160393c1..f2b37654777f 100644 --- a/arch/i386/kernel/ioport.c +++ b/arch/i386/kernel/ioport.c @@ -132,6 +132,7 @@ asmlinkage long sys_iopl(unsigned long unused) volatile struct pt_regs * regs = (struct pt_regs *) &unused; unsigned int level = regs->ebx; unsigned int old = (regs->eflags >> 12) & 3; + struct thread_struct *t = ¤t->thread; if (level > 3) return -EINVAL; @@ -140,8 +141,8 @@ asmlinkage long sys_iopl(unsigned long unused) if (!capable(CAP_SYS_RAWIO)) return -EPERM; } - regs->eflags = (regs->eflags &~ 0x3000UL) | (level << 12); - /* Make sure we return the long way (not sysenter) */ - set_thread_flag(TIF_IRET); + t->iopl = level << 12; + regs->eflags = (regs->eflags & ~X86_EFLAGS_IOPL) | t->iopl; + set_iopl_mask(t->iopl); return 0; } |