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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-12 18:13:02 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-12 18:13:02 -0700 |
commit | 44a5085162f3d3231b359784319a207032e09523 (patch) | |
tree | 8edc17bb33586f4e05b06af8155ea8896bed6346 /arch | |
parent | 27d30b0f4e0c8e63f48ef400a64fc073b71bfe59 (diff) | |
parent | 54f565ea895b383b67a2d6e31d2e2fcac5e6c345 (diff) | |
download | lwn-44a5085162f3d3231b359784319a207032e09523.tar.gz lwn-44a5085162f3d3231b359784319a207032e09523.zip |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC]: Fix TIF_USEDFPU flag atomicity
[SPARC64]: Fix atomicity of TIF update in flush_thread()
[BW2]: Fix section mismatch warnings.
[CG14]: Fix section mismatch warnings.
[SPARC]: We do not need OLD_GETRLIMIT.
Diffstat (limited to 'arch')
-rw-r--r-- | arch/sparc/kernel/process.c | 16 | ||||
-rw-r--r-- | arch/sparc/kernel/traps.c | 6 | ||||
-rw-r--r-- | arch/sparc64/kernel/process.c | 9 |
3 files changed, 18 insertions, 13 deletions
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c index 113bd48a89bd..fc874e63a499 100644 --- a/arch/sparc/kernel/process.c +++ b/arch/sparc/kernel/process.c @@ -348,7 +348,7 @@ void exit_thread(void) #ifndef CONFIG_SMP if(last_task_used_math == current) { #else - if(current_thread_info()->flags & _TIF_USEDFPU) { + if (test_thread_flag(TIF_USEDFPU)) { #endif /* Keep process from leaving FPU in a bogon state. */ put_psr(get_psr() | PSR_EF); @@ -357,7 +357,7 @@ void exit_thread(void) #ifndef CONFIG_SMP last_task_used_math = NULL; #else - current_thread_info()->flags &= ~_TIF_USEDFPU; + clear_thread_flag(TIF_USEDFPU); #endif } } @@ -371,7 +371,7 @@ void flush_thread(void) #ifndef CONFIG_SMP if(last_task_used_math == current) { #else - if(current_thread_info()->flags & _TIF_USEDFPU) { + if (test_thread_flag(TIF_USEDFPU)) { #endif /* Clean the fpu. */ put_psr(get_psr() | PSR_EF); @@ -380,7 +380,7 @@ void flush_thread(void) #ifndef CONFIG_SMP last_task_used_math = NULL; #else - current_thread_info()->flags &= ~_TIF_USEDFPU; + clear_thread_flag(TIF_USEDFPU); #endif } @@ -466,13 +466,13 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, #ifndef CONFIG_SMP if(last_task_used_math == current) { #else - if(current_thread_info()->flags & _TIF_USEDFPU) { + if (test_thread_flag(TIF_USEDFPU)) { #endif put_psr(get_psr() | PSR_EF); fpsave(&p->thread.float_regs[0], &p->thread.fsr, &p->thread.fpqueue[0], &p->thread.fpqdepth); #ifdef CONFIG_SMP - current_thread_info()->flags &= ~_TIF_USEDFPU; + clear_thread_flag(TIF_USEDFPU); #endif } @@ -609,13 +609,13 @@ int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs) return 1; } #ifdef CONFIG_SMP - if (current_thread_info()->flags & _TIF_USEDFPU) { + if (test_thread_flag(TIF_USEDFPU)) { put_psr(get_psr() | PSR_EF); fpsave(¤t->thread.float_regs[0], ¤t->thread.fsr, ¤t->thread.fpqueue[0], ¤t->thread.fpqdepth); if (regs != NULL) { regs->psr &= ~(PSR_EF); - current_thread_info()->flags &= ~(_TIF_USEDFPU); + clear_thread_flag(TIF_USEDFPU); } } #else diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c index 6a70d215fd04..527687afc1c4 100644 --- a/arch/sparc/kernel/traps.c +++ b/arch/sparc/kernel/traps.c @@ -259,7 +259,7 @@ void do_fpd_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc, } else { fpload(¤t->thread.float_regs[0], ¤t->thread.fsr); } - current_thread_info()->flags |= _TIF_USEDFPU; + set_thread_flag(TIF_USEDFPU); #endif } @@ -290,7 +290,7 @@ void do_fpe_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc, #ifndef CONFIG_SMP if(!fpt) { #else - if(!(task_thread_info(fpt)->flags & _TIF_USEDFPU)) { + if (!test_tsk_thread_flag(fpt, TIF_USEDFPU)) { #endif fpsave(&fake_regs[0], &fake_fsr, &fake_queue[0], &fake_depth); regs->psr &= ~PSR_EF; @@ -333,7 +333,7 @@ void do_fpe_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc, /* nope, better SIGFPE the offending process... */ #ifdef CONFIG_SMP - task_thread_info(fpt)->flags &= ~_TIF_USEDFPU; + clear_tsk_thread_flag(fpt, TIF_USEDFPU); #endif if(psr & PSR_PS) { /* The first fsr store/load we tried trapped, diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c index 7d75cd4eb297..b291060c25a6 100644 --- a/arch/sparc64/kernel/process.c +++ b/arch/sparc64/kernel/process.c @@ -413,8 +413,13 @@ void flush_thread(void) struct thread_info *t = current_thread_info(); struct mm_struct *mm; - if (t->flags & _TIF_ABI_PENDING) - t->flags ^= (_TIF_ABI_PENDING | _TIF_32BIT); + if (test_ti_thread_flag(t, TIF_ABI_PENDING)) { + clear_ti_thread_flag(t, TIF_ABI_PENDING); + if (test_ti_thread_flag(t, TIF_32BIT)) + clear_ti_thread_flag(t, TIF_32BIT); + else + set_ti_thread_flag(t, TIF_32BIT); + } mm = t->task->mm; if (mm) |