From 6139b59b64c70f97d82c42edc790e7e146f6f7d3 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Tue, 13 May 2008 10:27:17 +0800 Subject: [PATCH] --- yaml --- r: 98304 b: refs/heads/master c: 30e0e178193d4221abc9926b07a4c7661c7cc4a9 h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/Documentation/cpusets.txt | 2 +- trunk/arch/powerpc/kernel/vdso.c | 2 +- trunk/arch/x86/kernel/geode_32.c | 5 +- trunk/arch/x86/kernel/process_32.c | 1 - trunk/arch/x86/kernel/process_64.c | 1 - trunk/arch/x86/kernel/setup_32.c | 10 +- trunk/arch/x86/kernel/tsc_32.c | 18 +- trunk/drivers/ata/Kconfig | 10 +- trunk/drivers/ata/ahci.c | 23 +-- trunk/drivers/ata/ata_piix.c | 7 - trunk/drivers/ata/libata-core.c | 4 +- trunk/drivers/ata/libata-scsi.c | 16 +- trunk/drivers/ata/libata.h | 2 +- trunk/drivers/ata/sata_mv.c | 21 --- trunk/drivers/serial/bfin_5xx.c | 40 +++-- trunk/drivers/watchdog/hpwdt.c | 155 +++++++++--------- .../asm-blackfin/mach-bf527/bfin_serial_5xx.h | 2 +- .../asm-blackfin/mach-bf533/bfin_serial_5xx.h | 2 +- .../asm-blackfin/mach-bf537/bfin_serial_5xx.h | 2 +- .../asm-blackfin/mach-bf548/bfin_serial_5xx.h | 6 +- .../asm-blackfin/mach-bf561/bfin_serial_5xx.h | 2 +- trunk/include/asm-x86/geode.h | 4 +- trunk/include/asm-x86/page_32.h | 3 +- trunk/kernel/cpuset.c | 10 +- trunk/kernel/sched.c | 34 +--- trunk/kernel/sched_rt.c | 63 +++---- trunk/kernel/sched_stats.h | 6 - trunk/mm/memory.c | 17 +- trunk/mm/migrate.c | 10 -- 30 files changed, 180 insertions(+), 300 deletions(-) diff --git a/[refs] b/[refs] index 45d0c0cf9f1b..66485f51ada5 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: e570dc2a503f8334b700e8483082c675394f53fd +refs/heads/master: 30e0e178193d4221abc9926b07a4c7661c7cc4a9 diff --git a/trunk/Documentation/cpusets.txt b/trunk/Documentation/cpusets.txt index d803c5c68ab5..353504de3084 100644 --- a/trunk/Documentation/cpusets.txt +++ b/trunk/Documentation/cpusets.txt @@ -542,7 +542,7 @@ otherwise initial value -1 that indicates the cpuset has no request. 2 : search cores in a package. 3 : search cpus in a node [= system wide on non-NUMA system] ( 4 : search nodes in a chunk of node [on NUMA system] ) - ( 5~ : search system wide [on NUMA system]) + ( 5 : search system wide [on NUMA system] ) This file is per-cpuset and affect the sched domain where the cpuset belongs to. Therefore if the flag 'sched_load_balance' of a cpuset diff --git a/trunk/arch/powerpc/kernel/vdso.c b/trunk/arch/powerpc/kernel/vdso.c index ce245a850db2..c21a626af676 100644 --- a/trunk/arch/powerpc/kernel/vdso.c +++ b/trunk/arch/powerpc/kernel/vdso.c @@ -142,7 +142,7 @@ static void dump_one_vdso_page(struct page *pg, struct page *upg) printk("kpg: %p (c:%d,f:%08lx)", __va(page_to_pfn(pg) << PAGE_SHIFT), page_count(pg), pg->flags); - if (upg && !IS_ERR(upg) /* && pg != upg*/) { + if (upg/* && pg != upg*/) { printk(" upg: %p (c:%d,f:%08lx)", __va(page_to_pfn(upg) << PAGE_SHIFT), page_count(upg), diff --git a/trunk/arch/x86/kernel/geode_32.c b/trunk/arch/x86/kernel/geode_32.c index 9b08e852fd1a..e8edd63ab000 100644 --- a/trunk/arch/x86/kernel/geode_32.c +++ b/trunk/arch/x86/kernel/geode_32.c @@ -166,8 +166,6 @@ int geode_has_vsa2(void) static int has_vsa2 = -1; if (has_vsa2 == -1) { - u16 val; - /* * The VSA has virtual registers that we can query for a * signature. @@ -175,8 +173,7 @@ int geode_has_vsa2(void) outw(VSA_VR_UNLOCK, VSA_VRC_INDEX); outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX); - val = inw(VSA_VRC_DATA); - has_vsa2 = (val == AMD_VSA_SIG || val == GSW_VSA_SIG); + has_vsa2 = (inw(VSA_VRC_DATA) == VSA_SIG); } return has_vsa2; diff --git a/trunk/arch/x86/kernel/process_32.c b/trunk/arch/x86/kernel/process_32.c index e2db9ac5c61c..6d5483356e74 100644 --- a/trunk/arch/x86/kernel/process_32.c +++ b/trunk/arch/x86/kernel/process_32.c @@ -333,7 +333,6 @@ void flush_thread(void) /* * Forget coprocessor state.. */ - tsk->fpu_counter = 0; clear_fpu(tsk); clear_used_math(); } diff --git a/trunk/arch/x86/kernel/process_64.c b/trunk/arch/x86/kernel/process_64.c index c6eb5c91e5f6..ac54ff56df80 100644 --- a/trunk/arch/x86/kernel/process_64.c +++ b/trunk/arch/x86/kernel/process_64.c @@ -294,7 +294,6 @@ void flush_thread(void) /* * Forget coprocessor state.. */ - tsk->fpu_counter = 0; clear_fpu(tsk); clear_used_math(); } diff --git a/trunk/arch/x86/kernel/setup_32.c b/trunk/arch/x86/kernel/setup_32.c index 5a2f8e063887..2c5f8b213e86 100644 --- a/trunk/arch/x86/kernel/setup_32.c +++ b/trunk/arch/x86/kernel/setup_32.c @@ -532,16 +532,10 @@ static void __init reserve_crashkernel(void) (unsigned long)(crash_size >> 20), (unsigned long)(crash_base >> 20), (unsigned long)(total_mem >> 20)); - - if (reserve_bootmem(crash_base, crash_size, - BOOTMEM_EXCLUSIVE) < 0) { - printk(KERN_INFO "crashkernel reservation " - "failed - memory is in use\n"); - return; - } - crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; + reserve_bootmem(crash_base, crash_size, + BOOTMEM_DEFAULT); } else printk(KERN_INFO "crashkernel reservation failed - " "you have to specify a base address\n"); diff --git a/trunk/arch/x86/kernel/tsc_32.c b/trunk/arch/x86/kernel/tsc_32.c index 65b70637ad97..068759db63dd 100644 --- a/trunk/arch/x86/kernel/tsc_32.c +++ b/trunk/arch/x86/kernel/tsc_32.c @@ -14,10 +14,7 @@ #include "mach_timer.h" -/* native_sched_clock() is called before tsc_init(), so - we must start with the TSC soft disabled to prevent - erroneous rdtsc usage on !cpu_has_tsc processors */ -static int tsc_disabled = -1; +static int tsc_disabled; /* * On some systems the TSC frequency does not @@ -405,20 +402,25 @@ void __init tsc_init(void) { int cpu; - if (!cpu_has_tsc || tsc_disabled > 0) + if (!cpu_has_tsc || tsc_disabled) { + /* Disable the TSC in case of !cpu_has_tsc */ + tsc_disabled = 1; return; + } cpu_khz = calculate_cpu_khz(); tsc_khz = cpu_khz; if (!cpu_khz) { mark_tsc_unstable("could not calculate TSC khz"); + /* + * We need to disable the TSC completely in this case + * to prevent sched_clock() from using it. + */ + tsc_disabled = 1; return; } - /* now allow native_sched_clock() to use rdtsc */ - tsc_disabled = 0; - printk("Detected %lu.%03lu MHz processor.\n", (unsigned long)cpu_khz / 1000, (unsigned long)cpu_khz % 1000); diff --git a/trunk/drivers/ata/Kconfig b/trunk/drivers/ata/Kconfig index ae8494944c45..9bf2986a2788 100644 --- a/trunk/drivers/ata/Kconfig +++ b/trunk/drivers/ata/Kconfig @@ -651,17 +651,9 @@ config PATA_WINBOND_VLB Support for the Winbond W83759A controller on Vesa Local Bus systems. -config HAVE_PATA_PLATFORM - bool - help - This is an internal configuration node for any machine that - uses pata-platform driver to enable the relevant driver in the - configuration structure without having to submit endless patches - to update the PATA_PLATFORM entry. - config PATA_PLATFORM tristate "Generic platform device PATA support" - depends on EMBEDDED || ARCH_RPC || PPC || HAVE_PATA_PLATFORM + depends on EMBEDDED || ARCH_RPC || PPC help This option enables support for generic directly connected ATA devices commonly found on embedded systems. diff --git a/trunk/drivers/ata/ahci.c b/trunk/drivers/ata/ahci.c index 6a4a2a25d97a..966ab401e523 100644 --- a/trunk/drivers/ata/ahci.c +++ b/trunk/drivers/ata/ahci.c @@ -90,7 +90,6 @@ enum { board_ahci_mv = 4, board_ahci_sb700 = 5, board_ahci_mcp65 = 6, - board_ahci_nopmp = 7, /* global controller registers */ HOST_CAP = 0x00, /* host capabilities */ @@ -402,14 +401,6 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, - /* board_ahci_nopmp */ - { - AHCI_HFLAGS (AHCI_HFLAG_NO_PMP), - .flags = AHCI_FLAG_COMMON, - .pio_mask = 0x1f, /* pio0-4 */ - .udma_mask = ATA_UDMA6, - .port_ops = &ahci_ops, - }, }; static const struct pci_device_id ahci_pci_tbl[] = { @@ -534,9 +525,9 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci }, /* MCP7B */ /* SiS */ - { PCI_VDEVICE(SI, 0x1184), board_ahci_nopmp }, /* SiS 966 */ - { PCI_VDEVICE(SI, 0x1185), board_ahci_nopmp }, /* SiS 968 */ - { PCI_VDEVICE(SI, 0x0186), board_ahci_nopmp }, /* SiS 968 */ + { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */ + { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 966 */ + { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */ /* Marvell */ { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */ @@ -662,14 +653,6 @@ static void ahci_save_initial_config(struct pci_dev *pdev, cap &= ~HOST_CAP_PMP; } - if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361 && - port_map != 1) { - dev_printk(KERN_INFO, &pdev->dev, - "JMB361 has only one port, port_map 0x%x -> 0x%x\n", - port_map, 1); - port_map = 1; - } - /* * Temporary Marvell 6145 hack: PATA port presence * is asserted through the standard AHCI port diff --git a/trunk/drivers/ata/ata_piix.c b/trunk/drivers/ata/ata_piix.c index a90ae03f56b2..81b7ae376951 100644 --- a/trunk/drivers/ata/ata_piix.c +++ b/trunk/drivers/ata/ata_piix.c @@ -1042,13 +1042,6 @@ static int piix_broken_suspend(void) DMI_MATCH(DMI_PRODUCT_NAME, "Tecra M4"), }, }, - { - .ident = "TECRA M4", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), - DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M4"), - }, - }, { .ident = "TECRA M5", .matches = { diff --git a/trunk/drivers/ata/libata-core.c b/trunk/drivers/ata/libata-core.c index 303fc0d2b978..cc816ca623d3 100644 --- a/trunk/drivers/ata/libata-core.c +++ b/trunk/drivers/ata/libata-core.c @@ -4297,7 +4297,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc) } /** - * atapi_check_dma - Check whether ATAPI DMA can be supported + * ata_check_atapi_dma - Check whether ATAPI DMA can be supported * @qc: Metadata associated with taskfile to check * * Allow low-level driver to filter ATA PACKET commands, returning @@ -4310,7 +4310,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc) * RETURNS: 0 when ATAPI DMA can be used * nonzero otherwise */ -int atapi_check_dma(struct ata_queued_cmd *qc) +int ata_check_atapi_dma(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; diff --git a/trunk/drivers/ata/libata-scsi.c b/trunk/drivers/ata/libata-scsi.c index 57a43649a461..2e6e1622dc6d 100644 --- a/trunk/drivers/ata/libata-scsi.c +++ b/trunk/drivers/ata/libata-scsi.c @@ -2343,8 +2343,8 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) { struct scsi_cmnd *scmd = qc->scsicmd; struct ata_device *dev = qc->dev; + int using_pio = (dev->flags & ATA_DFLAG_PIO); int nodata = (scmd->sc_data_direction == DMA_NONE); - int using_pio = !nodata && (dev->flags & ATA_DFLAG_PIO); unsigned int nbytes; memset(qc->cdb, 0, dev->cdb_len); @@ -2362,7 +2362,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) ata_qc_set_pc_nbytes(qc); /* check whether ATAPI DMA is safe */ - if (!nodata && !using_pio && atapi_check_dma(qc)) + if (!using_pio && ata_check_atapi_dma(qc)) using_pio = 1; /* Some controller variants snoop this value for Packet @@ -2402,11 +2402,13 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) qc->tf.lbam = (nbytes & 0xFF); qc->tf.lbah = (nbytes >> 8); - if (nodata) - qc->tf.protocol = ATAPI_PROT_NODATA; - else if (using_pio) - qc->tf.protocol = ATAPI_PROT_PIO; - else { + if (using_pio || nodata) { + /* no data, or PIO data xfer */ + if (nodata) + qc->tf.protocol = ATAPI_PROT_NODATA; + else + qc->tf.protocol = ATAPI_PROT_PIO; + } else { /* DMA data xfer */ qc->tf.protocol = ATAPI_PROT_DMA; qc->tf.feature |= ATAPI_PKT_DMA; diff --git a/trunk/drivers/ata/libata.h b/trunk/drivers/ata/libata.h index 1cf803adbc95..4514283937ea 100644 --- a/trunk/drivers/ata/libata.h +++ b/trunk/drivers/ata/libata.h @@ -106,7 +106,7 @@ extern void ata_sg_clean(struct ata_queued_cmd *qc); extern void ata_qc_free(struct ata_queued_cmd *qc); extern void ata_qc_issue(struct ata_queued_cmd *qc); extern void __ata_qc_complete(struct ata_queued_cmd *qc); -extern int atapi_check_dma(struct ata_queued_cmd *qc); +extern int ata_check_atapi_dma(struct ata_queued_cmd *qc); extern void swap_buf_le16(u16 *buf, unsigned int buf_words); extern void ata_dev_init(struct ata_device *dev); extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp); diff --git a/trunk/drivers/ata/sata_mv.c b/trunk/drivers/ata/sata_mv.c index 28092bc50146..60391e9a84db 100644 --- a/trunk/drivers/ata/sata_mv.c +++ b/trunk/drivers/ata/sata_mv.c @@ -1322,9 +1322,6 @@ static int mv_port_start(struct ata_port *ap) goto out_port_free_dma_mem; memset(pp->crpb, 0, MV_CRPB_Q_SZ); - /* 6041/6081 Rev. "C0" (and newer) are okay with async notify */ - if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0) - ap->flags |= ATA_FLAG_AN; /* * For GEN_I, there's no NCQ, so we only allocate a single sg_tbl. * For later hardware, we need one unique sg_tbl per NCQ tag. @@ -1595,24 +1592,6 @@ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc) if ((qc->tf.protocol != ATA_PROT_DMA) && (qc->tf.protocol != ATA_PROT_NCQ)) { - static int limit_warnings = 10; - /* - * Errata SATA#16, SATA#24: warn if multiple DRQs expected. - * - * Someday, we might implement special polling workarounds - * for these, but it all seems rather unnecessary since we - * normally use only DMA for commands which transfer more - * than a single block of data. - * - * Much of the time, this could just work regardless. - * So for now, just log the incident, and allow the attempt. - */ - if (limit_warnings && (qc->nbytes / qc->sect_size) > 1) { - --limit_warnings; - ata_link_printk(qc->dev->link, KERN_WARNING, DRV_NAME - ": attempting PIO w/multiple DRQ: " - "this may fail due to h/w errata\n"); - } /* * We're about to send a non-EDMA capable command to the * port. Turn off EDMA so there won't be problems accessing diff --git a/trunk/drivers/serial/bfin_5xx.c b/trunk/drivers/serial/bfin_5xx.c index fd9bb777df28..f20952c43cb8 100644 --- a/trunk/drivers/serial/bfin_5xx.c +++ b/trunk/drivers/serial/bfin_5xx.c @@ -49,7 +49,6 @@ #define DMA_RX_YCOUNT (PAGE_SIZE / DMA_RX_XCOUNT) #define DMA_RX_FLUSH_JIFFIES (HZ / 50) -#define CTS_CHECK_JIFFIES (HZ / 50) #ifdef CONFIG_SERIAL_BFIN_DMA static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart); @@ -291,6 +290,11 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart) { struct circ_buf *xmit = &uart->port.info->xmit; + if (uart->port.x_char) { + UART_PUT_CHAR(uart, uart->port.x_char); + uart->port.icount.tx++; + uart->port.x_char = 0; + } /* * Check the modem control lines before * transmitting anything. @@ -302,12 +306,6 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart) return; } - if (uart->port.x_char) { - UART_PUT_CHAR(uart, uart->port.x_char); - uart->port.icount.tx++; - uart->port.x_char = 0; - } - while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) { UART_PUT_CHAR(uart, xmit->buf[xmit->tail]); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); @@ -347,6 +345,15 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id) } #endif +#ifdef CONFIG_SERIAL_BFIN_CTSRTS +static void bfin_serial_do_work(struct work_struct *work) +{ + struct bfin_serial_port *uart = container_of(work, struct bfin_serial_port, cts_workqueue); + + bfin_serial_mctrl_check(uart); +} +#endif + #ifdef CONFIG_SERIAL_BFIN_DMA static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) { @@ -354,12 +361,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) uart->tx_done = 0; - /* - * Check the modem control lines before - * transmitting anything. - */ - bfin_serial_mctrl_check(uart); - if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) { uart->tx_count = 0; uart->tx_done = 1; @@ -372,6 +373,12 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) uart->port.x_char = 0; } + /* + * Check the modem control lines before + * transmitting anything. + */ + bfin_serial_mctrl_check(uart); + uart->tx_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE); if (uart->tx_count > (UART_XMIT_SIZE - xmit->tail)) uart->tx_count = UART_XMIT_SIZE - xmit->tail; @@ -558,10 +565,7 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart) uart_handle_cts_change(&uart->port, status & TIOCM_CTS); if (!(status & TIOCM_CTS)) { tty->hw_stopped = 1; - uart->cts_timer.data = (unsigned long)(uart); - uart->cts_timer.function = (void *)bfin_serial_mctrl_check; - uart->cts_timer.expires = jiffies + CTS_CHECK_JIFFIES; - add_timer(&(uart->cts_timer)); + schedule_work(&uart->cts_workqueue); } else { tty->hw_stopped = 0; } @@ -881,7 +885,7 @@ static void __init bfin_serial_init_ports(void) init_timer(&(bfin_serial_ports[i].rx_dma_timer)); #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS - init_timer(&(bfin_serial_ports[i].cts_timer)); + INIT_WORK(&bfin_serial_ports[i].cts_workqueue, bfin_serial_do_work); bfin_serial_ports[i].cts_pin = bfin_serial_resource[i].uart_cts_pin; bfin_serial_ports[i].rts_pin = diff --git a/trunk/drivers/watchdog/hpwdt.c b/trunk/drivers/watchdog/hpwdt.c index eaa3f2a79ff5..2686f3eaeedf 100644 --- a/trunk/drivers/watchdog/hpwdt.c +++ b/trunk/drivers/watchdog/hpwdt.c @@ -140,53 +140,49 @@ static struct pci_device_id hpwdt_devices[] = { }; MODULE_DEVICE_TABLE(pci, hpwdt_devices); -extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs, unsigned long *pRomEntry); - #ifndef CONFIG_X86_64 /* --32 Bit Bios------------------------------------------------------------ */ #define HPWDT_ARCH 32 -asm(".text \n\t" - ".align 4 \n" - "asminline_call: \n\t" - "pushl %ebp \n\t" - "movl %esp, %ebp \n\t" - "pusha \n\t" - "pushf \n\t" - "push %es \n\t" - "push %ds \n\t" - "pop %es \n\t" - "movl 8(%ebp),%eax \n\t" - "movl 4(%eax),%ebx \n\t" - "movl 8(%eax),%ecx \n\t" - "movl 12(%eax),%edx \n\t" - "movl 16(%eax),%esi \n\t" - "movl 20(%eax),%edi \n\t" - "movl (%eax),%eax \n\t" - "push %cs \n\t" - "call *12(%ebp) \n\t" - "pushf \n\t" - "pushl %eax \n\t" - "movl 8(%ebp),%eax \n\t" - "movl %ebx,4(%eax) \n\t" - "movl %ecx,8(%eax) \n\t" - "movl %edx,12(%eax) \n\t" - "movl %esi,16(%eax) \n\t" - "movl %edi,20(%eax) \n\t" - "movw %ds,24(%eax) \n\t" - "movw %es,26(%eax) \n\t" - "popl %ebx \n\t" - "movl %ebx,(%eax) \n\t" - "popl %ebx \n\t" - "movl %ebx,28(%eax) \n\t" - "pop %es \n\t" - "popf \n\t" - "popa \n\t" - "leave \n\t" - "ret \n\t" - ".previous"); - +asmlinkage void asminline_call(struct cmn_registers *pi86Regs, + unsigned long *pRomEntry) +{ + asm("pushl %ebp \n\t" + "movl %esp, %ebp \n\t" + "pusha \n\t" + "pushf \n\t" + "push %es \n\t" + "push %ds \n\t" + "pop %es \n\t" + "movl 8(%ebp),%eax \n\t" + "movl 4(%eax),%ebx \n\t" + "movl 8(%eax),%ecx \n\t" + "movl 12(%eax),%edx \n\t" + "movl 16(%eax),%esi \n\t" + "movl 20(%eax),%edi \n\t" + "movl (%eax),%eax \n\t" + "push %cs \n\t" + "call *12(%ebp) \n\t" + "pushf \n\t" + "pushl %eax \n\t" + "movl 8(%ebp),%eax \n\t" + "movl %ebx,4(%eax) \n\t" + "movl %ecx,8(%eax) \n\t" + "movl %edx,12(%eax) \n\t" + "movl %esi,16(%eax) \n\t" + "movl %edi,20(%eax) \n\t" + "movw %ds,24(%eax) \n\t" + "movw %es,26(%eax) \n\t" + "popl %ebx \n\t" + "movl %ebx,(%eax) \n\t" + "popl %ebx \n\t" + "movl %ebx,28(%eax) \n\t" + "pop %es \n\t" + "popf \n\t" + "popa \n\t" + "leave \n\t" "ret"); +} /* * cru_detect @@ -337,44 +333,43 @@ static int __devinit detect_cru_service(void) #define HPWDT_ARCH 64 -asm(".text \n\t" - ".align 4 \n" - "asminline_call: \n\t" - "pushq %rbp \n\t" - "movq %rsp, %rbp \n\t" - "pushq %rax \n\t" - "pushq %rbx \n\t" - "pushq %rdx \n\t" - "pushq %r12 \n\t" - "pushq %r9 \n\t" - "movq %rsi, %r12 \n\t" - "movq %rdi, %r9 \n\t" - "movl 4(%r9),%ebx \n\t" - "movl 8(%r9),%ecx \n\t" - "movl 12(%r9),%edx \n\t" - "movl 16(%r9),%esi \n\t" - "movl 20(%r9),%edi \n\t" - "movl (%r9),%eax \n\t" - "call *%r12 \n\t" - "pushfq \n\t" - "popq %r12 \n\t" - "popfq \n\t" - "movl %eax, (%r9) \n\t" - "movl %ebx, 4(%r9) \n\t" - "movl %ecx, 8(%r9) \n\t" - "movl %edx, 12(%r9) \n\t" - "movl %esi, 16(%r9) \n\t" - "movl %edi, 20(%r9) \n\t" - "movq %r12, %rax \n\t" - "movl %eax, 28(%r9) \n\t" - "popq %r9 \n\t" - "popq %r12 \n\t" - "popq %rdx \n\t" - "popq %rbx \n\t" - "popq %rax \n\t" - "leave \n\t" - "ret \n\t" - ".previous"); +asmlinkage void asminline_call(struct cmn_registers *pi86Regs, + unsigned long *pRomEntry) +{ + asm("pushq %rbp \n\t" + "movq %rsp, %rbp \n\t" + "pushq %rax \n\t" + "pushq %rbx \n\t" + "pushq %rdx \n\t" + "pushq %r12 \n\t" + "pushq %r9 \n\t" + "movq %rsi, %r12 \n\t" + "movq %rdi, %r9 \n\t" + "movl 4(%r9),%ebx \n\t" + "movl 8(%r9),%ecx \n\t" + "movl 12(%r9),%edx \n\t" + "movl 16(%r9),%esi \n\t" + "movl 20(%r9),%edi \n\t" + "movl (%r9),%eax \n\t" + "call *%r12 \n\t" + "pushfq \n\t" + "popq %r12 \n\t" + "popfq \n\t" + "movl %eax, (%r9) \n\t" + "movl %ebx, 4(%r9) \n\t" + "movl %ecx, 8(%r9) \n\t" + "movl %edx, 12(%r9) \n\t" + "movl %esi, 16(%r9) \n\t" + "movl %edi, 20(%r9) \n\t" + "movq %r12, %rax \n\t" + "movl %eax, 28(%r9) \n\t" + "popq %r9 \n\t" + "popq %r12 \n\t" + "popq %rdx \n\t" + "popq %rbx \n\t" + "popq %rax \n\t" + "leave \n\t" "ret"); +} /* * dmi_find_cru diff --git a/trunk/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/trunk/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h index 2526b6ed6faa..96bd09e31e36 100644 --- a/trunk/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h +++ b/trunk/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h @@ -96,7 +96,7 @@ struct bfin_serial_port { struct work_struct tx_dma_workqueue; #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS - struct timer_list cts_timer; + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/trunk/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/trunk/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h index ebf592b59aab..e924569ad1d8 100644 --- a/trunk/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h +++ b/trunk/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h @@ -88,7 +88,7 @@ struct bfin_serial_port { # endif #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS - struct timer_list cts_timer; + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/trunk/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/trunk/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h index 1bf56ffa22f9..41d7b6490bb1 100644 --- a/trunk/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h +++ b/trunk/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h @@ -96,7 +96,7 @@ struct bfin_serial_port { struct work_struct tx_dma_workqueue; #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS - struct timer_list cts_timer; + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/trunk/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/trunk/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h index 5e29446a8e03..59b4ad4e5b4a 100644 --- a/trunk/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h +++ b/trunk/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h @@ -99,7 +99,7 @@ struct bfin_serial_port { struct work_struct tx_dma_workqueue; #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS - struct timer_list cts_timer; + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif @@ -187,7 +187,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) #ifdef CONFIG_BFIN_UART1_CTSRTS peripheral_request(P_UART1_RTS, DRIVER_NAME); - peripheral_request(P_UART1_CTS, DRIVER_NAME); + peripheral_request(P_UART1_CTS DRIVER_NAME); #endif #endif @@ -202,7 +202,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) #ifdef CONFIG_BFIN_UART3_CTSRTS peripheral_request(P_UART3_RTS, DRIVER_NAME); - peripheral_request(P_UART3_CTS, DRIVER_NAME); + peripheral_request(P_UART3_CTS DRIVER_NAME); #endif #endif SSYNC(); diff --git a/trunk/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/trunk/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h index 8aa02780e642..30d90b580f18 100644 --- a/trunk/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h +++ b/trunk/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h @@ -88,7 +88,7 @@ struct bfin_serial_port { # endif #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS - struct timer_list cts_timer; + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/trunk/include/asm-x86/geode.h b/trunk/include/asm-x86/geode.h index bb06027fc83e..6e6458853a36 100644 --- a/trunk/include/asm-x86/geode.h +++ b/trunk/include/asm-x86/geode.h @@ -112,8 +112,8 @@ extern int geode_get_dev_base(unsigned int dev); #define VSA_VR_UNLOCK 0xFC53 /* unlock virtual register */ #define VSA_VR_SIGNATURE 0x0003 #define VSA_VR_MEM_SIZE 0x0200 -#define AMD_VSA_SIG 0x4132 /* signature is ascii 'VSA2' */ -#define GSW_VSA_SIG 0x534d /* General Software signature */ +#define VSA_SIG 0x4132 /* signature is ascii 'VSA2' */ + /* GPIO */ #define GPIO_OUTPUT_VAL 0x00 diff --git a/trunk/include/asm-x86/page_32.h b/trunk/include/asm-x86/page_32.h index ccf0ba3c3aba..424e82f8ae27 100644 --- a/trunk/include/asm-x86/page_32.h +++ b/trunk/include/asm-x86/page_32.h @@ -14,8 +14,7 @@ #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) #ifdef CONFIG_X86_PAE -/* 44=32+12, the limit we can fit into an unsigned long pfn */ -#define __PHYSICAL_MASK_SHIFT 44 +#define __PHYSICAL_MASK_SHIFT 36 #define __VIRTUAL_MASK_SHIFT 32 #define PAGETABLE_LEVELS 3 diff --git a/trunk/kernel/cpuset.c b/trunk/kernel/cpuset.c index bceb89557973..66103a119bfe 100644 --- a/trunk/kernel/cpuset.c +++ b/trunk/kernel/cpuset.c @@ -1037,8 +1037,8 @@ int current_cpuset_is_being_rebound(void) static int update_relax_domain_level(struct cpuset *cs, s64 val) { - if ((int)val < 0) - val = -1; + if (val < -1 || val >= SD_LV_MAX) + return -EINVAL; if (val != cs->relax_domain_level) { cs->relax_domain_level = val; @@ -1890,12 +1890,6 @@ static void common_cpu_mem_hotplug_unplug(void) top_cpuset.mems_allowed = node_states[N_HIGH_MEMORY]; scan_for_empty_cpusets(&top_cpuset); - /* - * Scheduler destroys domains on hotplug events. - * Rebuild them based on the current settings. - */ - rebuild_sched_domains(); - cgroup_unlock(); } diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c index 4a3cb0614158..bb2c699c9f5e 100644 --- a/trunk/kernel/sched.c +++ b/trunk/kernel/sched.c @@ -1127,7 +1127,6 @@ static enum hrtimer_restart hrtick(struct hrtimer *timer) return HRTIMER_NORESTART; } -#ifdef CONFIG_SMP static void hotplug_hrtick_disable(int cpu) { struct rq *rq = cpu_rq(cpu); @@ -1183,7 +1182,6 @@ static void init_hrtick(void) { hotcpu_notifier(hotplug_hrtick, 0); } -#endif /* CONFIG_SMP */ static void init_rq_hrtick(struct rq *rq) { @@ -6879,7 +6877,12 @@ static int default_relax_domain_level = -1; static int __init setup_relax_domain_level(char *str) { - default_relax_domain_level = simple_strtoul(str, NULL, 0); + unsigned long val; + + val = simple_strtoul(str, NULL, 0); + if (val < SD_LV_MAX) + default_relax_domain_level = val; + return 1; } __setup("relax_domain_level=", setup_relax_domain_level); @@ -7237,18 +7240,6 @@ void __attribute__((weak)) arch_update_cpu_topology(void) { } -/* - * Free current domain masks. - * Called after all cpus are attached to NULL domain. - */ -static void free_sched_domains(void) -{ - ndoms_cur = 0; - if (doms_cur != &fallback_doms) - kfree(doms_cur); - doms_cur = &fallback_doms; -} - /* * Set up scheduler domains and groups. Callers must hold the hotplug lock. * For now this just excludes isolated cpus, but could be used to @@ -7396,7 +7387,6 @@ int arch_reinit_sched_domains(void) get_online_cpus(); mutex_lock(&sched_domains_mutex); detach_destroy_domains(&cpu_online_map); - free_sched_domains(); err = arch_init_sched_domains(&cpu_online_map); mutex_unlock(&sched_domains_mutex); put_online_cpus(); @@ -7482,7 +7472,6 @@ static int update_sched_domains(struct notifier_block *nfb, case CPU_DOWN_PREPARE: case CPU_DOWN_PREPARE_FROZEN: detach_destroy_domains(&cpu_online_map); - free_sched_domains(); return NOTIFY_OK; case CPU_UP_CANCELED: @@ -7501,16 +7490,8 @@ static int update_sched_domains(struct notifier_block *nfb, return NOTIFY_DONE; } -#ifndef CONFIG_CPUSETS - /* - * Create default domain partitioning if cpusets are disabled. - * Otherwise we let cpusets rebuild the domains based on the - * current setup. - */ - /* The hotplug lock is already held by cpu_up/cpu_down */ arch_init_sched_domains(&cpu_online_map); -#endif return NOTIFY_OK; } @@ -7650,6 +7631,7 @@ static void init_tg_rt_entry(struct task_group *tg, struct rt_rq *rt_rq, else rt_se->rt_rq = parent->my_q; + rt_se->rt_rq = &rq->rt; rt_se->my_q = rt_rq; rt_se->parent = parent; INIT_LIST_HEAD(&rt_se->run_list); @@ -8371,7 +8353,7 @@ static unsigned long to_ratio(u64 period, u64 runtime) #ifdef CONFIG_CGROUP_SCHED static int __rt_schedulable(struct task_group *tg, u64 period, u64 runtime) { - struct task_group *tgi, *parent = tg ? tg->parent : NULL; + struct task_group *tgi, *parent = tg->parent; unsigned long total = 0; if (!parent) { diff --git a/trunk/kernel/sched_rt.c b/trunk/kernel/sched_rt.c index 1dad5bbb59b6..3432d573205d 100644 --- a/trunk/kernel/sched_rt.c +++ b/trunk/kernel/sched_rt.c @@ -449,19 +449,13 @@ void dec_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq) #endif } -static void __enqueue_rt_entity(struct sched_rt_entity *rt_se) +static void enqueue_rt_entity(struct sched_rt_entity *rt_se) { struct rt_rq *rt_rq = rt_rq_of_se(rt_se); struct rt_prio_array *array = &rt_rq->active; struct rt_rq *group_rq = group_rt_rq(rt_se); - /* - * Don't enqueue the group if its throttled, or when empty. - * The latter is a consequence of the former when a child group - * get throttled and the current group doesn't have any other - * active members. - */ - if (group_rq && (rt_rq_throttled(group_rq) || !group_rq->rt_nr_running)) + if (group_rq && rt_rq_throttled(group_rq)) return; list_add_tail(&rt_se->run_list, array->queue + rt_se_prio(rt_se)); @@ -470,7 +464,7 @@ static void __enqueue_rt_entity(struct sched_rt_entity *rt_se) inc_rt_tasks(rt_se, rt_rq); } -static void __dequeue_rt_entity(struct sched_rt_entity *rt_se) +static void dequeue_rt_entity(struct sched_rt_entity *rt_se) { struct rt_rq *rt_rq = rt_rq_of_se(rt_se); struct rt_prio_array *array = &rt_rq->active; @@ -486,10 +480,11 @@ static void __dequeue_rt_entity(struct sched_rt_entity *rt_se) * Because the prio of an upper entry depends on the lower * entries, we must remove entries top - down. */ -static void dequeue_rt_stack(struct sched_rt_entity *rt_se) +static void dequeue_rt_stack(struct task_struct *p) { - struct sched_rt_entity *back = NULL; + struct sched_rt_entity *rt_se, *back = NULL; + rt_se = &p->rt; for_each_sched_rt_entity(rt_se) { rt_se->back = back; back = rt_se; @@ -497,26 +492,7 @@ static void dequeue_rt_stack(struct sched_rt_entity *rt_se) for (rt_se = back; rt_se; rt_se = rt_se->back) { if (on_rt_rq(rt_se)) - __dequeue_rt_entity(rt_se); - } -} - -static void enqueue_rt_entity(struct sched_rt_entity *rt_se) -{ - dequeue_rt_stack(rt_se); - for_each_sched_rt_entity(rt_se) - __enqueue_rt_entity(rt_se); -} - -static void dequeue_rt_entity(struct sched_rt_entity *rt_se) -{ - dequeue_rt_stack(rt_se); - - for_each_sched_rt_entity(rt_se) { - struct rt_rq *rt_rq = group_rt_rq(rt_se); - - if (rt_rq && rt_rq->rt_nr_running) - __enqueue_rt_entity(rt_se); + dequeue_rt_entity(rt_se); } } @@ -530,15 +506,32 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup) if (wakeup) rt_se->timeout = 0; - enqueue_rt_entity(rt_se); + dequeue_rt_stack(p); + + /* + * enqueue everybody, bottom - up. + */ + for_each_sched_rt_entity(rt_se) + enqueue_rt_entity(rt_se); } static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep) { struct sched_rt_entity *rt_se = &p->rt; + struct rt_rq *rt_rq; update_curr_rt(rq); - dequeue_rt_entity(rt_se); + + dequeue_rt_stack(p); + + /* + * re-enqueue all non-empty rt_rq entities. + */ + for_each_sched_rt_entity(rt_se) { + rt_rq = group_rt_rq(rt_se); + if (rt_rq && rt_rq->rt_nr_running) + enqueue_rt_entity(rt_se); + } } /* @@ -549,10 +542,8 @@ static void requeue_rt_entity(struct rt_rq *rt_rq, struct sched_rt_entity *rt_se) { struct rt_prio_array *array = &rt_rq->active; - struct list_head *queue = array->queue + rt_se_prio(rt_se); - if (on_rt_rq(rt_se)) - list_move_tail(&rt_se->run_list, queue); + list_move_tail(&rt_se->run_list, array->queue + rt_se_prio(rt_se)); } static void requeue_task_rt(struct rq *rq, struct task_struct *p) diff --git a/trunk/kernel/sched_stats.h b/trunk/kernel/sched_stats.h index 80179ef7450e..a38878e0e49d 100644 --- a/trunk/kernel/sched_stats.h +++ b/trunk/kernel/sched_stats.h @@ -198,9 +198,6 @@ static inline void sched_info_queued(struct task_struct *t) /* * Called when a process ceases being the active-running process, either * voluntarily or involuntarily. Now we can calculate how long we ran. - * Also, if the process is still in the TASK_RUNNING state, call - * sched_info_queued() to mark that it has now again started waiting on - * the runqueue. */ static inline void sched_info_depart(struct task_struct *t) { @@ -209,9 +206,6 @@ static inline void sched_info_depart(struct task_struct *t) t->sched_info.cpu_time += delta; rq_sched_info_depart(task_rq(t), delta); - - if (t->state == TASK_RUNNING) - sched_info_queued(t); } /* diff --git a/trunk/mm/memory.c b/trunk/mm/memory.c index 9aefaae46858..19e0ae9beecb 100644 --- a/trunk/mm/memory.c +++ b/trunk/mm/memory.c @@ -999,15 +999,17 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address, goto no_page_table; ptep = pte_offset_map_lock(mm, pmd, address, &ptl); + if (!ptep) + goto out; pte = *ptep; if (!pte_present(pte)) - goto no_page; + goto unlock; if ((flags & FOLL_WRITE) && !pte_write(pte)) goto unlock; page = vm_normal_page(vma, address, pte); if (unlikely(!page)) - goto bad_page; + goto unlock; if (flags & FOLL_GET) get_page(page); @@ -1022,15 +1024,6 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address, out: return page; -bad_page: - pte_unmap_unlock(ptep, ptl); - return ERR_PTR(-EFAULT); - -no_page: - pte_unmap_unlock(ptep, ptl); - if (!pte_none(pte)) - return page; - /* Fall through to ZERO_PAGE handling */ no_page_table: /* * When core dumping an enormous anonymous area that nobody @@ -1166,8 +1159,6 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, cond_resched(); } - if (IS_ERR(page)) - return i ? i : PTR_ERR(page); if (pages) { pages[i] = page; diff --git a/trunk/mm/migrate.c b/trunk/mm/migrate.c index 112bcaeaa104..449d77d409f5 100644 --- a/trunk/mm/migrate.c +++ b/trunk/mm/migrate.c @@ -865,11 +865,6 @@ static int do_move_pages(struct mm_struct *mm, struct page_to_node *pm, goto set_status; page = follow_page(vma, pp->addr, FOLL_GET); - - err = PTR_ERR(page); - if (IS_ERR(page)) - goto set_status; - err = -ENOENT; if (!page) goto set_status; @@ -933,11 +928,6 @@ static int do_pages_stat(struct mm_struct *mm, struct page_to_node *pm) goto set_status; page = follow_page(vma, pm->addr, 0); - - err = PTR_ERR(page); - if (IS_ERR(page)) - goto set_status; - err = -ENOENT; /* Use PageReserved to check for zero page */ if (!page || PageReserved(page))