diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-02-26 22:37:32 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-02-26 22:37:30 +0100 |
| commit | f64ca21714f114a78b6c19ceabc7745b29913efc (patch) | |
| tree | ef01f90c3c0547c37f6259de2fe274a3a47e082a /arch/s390/kernel/smp.c | |
| parent | [S390] use inline assembly contraints available with gcc 3.3.3 (diff) | |
| download | linux-f64ca21714f114a78b6c19ceabc7745b29913efc.tar.xz linux-f64ca21714f114a78b6c19ceabc7745b29913efc.zip | |
[S390] zfcpdump: remove cross arch dump support
Remove support to be able to dump 31 bit systems with a 64 bit dumper.
This is mostly useless since no distro ships 31 bit kernels together
with a 64 bit dumper.
We also get rid of a bit of hacky code.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/smp.c')
| -rw-r--r-- | arch/s390/kernel/smp.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 76a6fdd46c45..384a6846a65e 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -248,15 +248,6 @@ EXPORT_SYMBOL(smp_ctl_clear_bit); #ifdef CONFIG_ZFCPDUMP -/* - * zfcpdump_prefix_array holds prefix registers for the following scenario: - * 64 bit zfcpdump kernel and 31 bit kernel which is to be dumped. We have to - * save its prefix registers, since they get lost, when switching from 31 bit - * to 64 bit. - */ -unsigned int zfcpdump_prefix_array[NR_CPUS + 1] \ - __attribute__((__section__(".data"))); - static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { if (ipl_info.type != IPL_TYPE_FCP_DUMP) @@ -266,21 +257,17 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) "the dump\n", cpu, NR_CPUS - 1); return; } - zfcpdump_save_areas[cpu] = kmalloc(sizeof(union save_area), GFP_KERNEL); + zfcpdump_save_areas[cpu] = kmalloc(sizeof(struct save_area), GFP_KERNEL); __cpu_logical_map[CPU_INIT_NO] = (__u16) phy_cpu; while (signal_processor(CPU_INIT_NO, sigp_stop_and_store_status) == sigp_busy) cpu_relax(); memcpy(zfcpdump_save_areas[cpu], (void *)(unsigned long) store_prefix() + SAVE_AREA_BASE, - SAVE_AREA_SIZE); -#ifdef CONFIG_64BIT - /* copy original prefix register */ - zfcpdump_save_areas[cpu]->s390x.pref_reg = zfcpdump_prefix_array[cpu]; -#endif + sizeof(struct save_area)); } -union save_area *zfcpdump_save_areas[NR_CPUS + 1]; +struct save_area *zfcpdump_save_areas[NR_CPUS + 1]; EXPORT_SYMBOL_GPL(zfcpdump_save_areas); #else |