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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky: "One patch to increase the number of possible CPUs to 256, with the latest machine a single LPAR can have up to 101 CPUs. Plus a number of bug fixes, the clock_gettime patch fixes a regression added in the 3.13 merge window" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/time,vdso: fix clock_gettime for CLOCK_MONOTONIC s390/vdso: ectg gettime support for CLOCK_THREAD_CPUTIME_ID s390/vdso: fix access-list entry initialization s390: increase CONFIG_NR_CPUS limit s390/smp,sclp: fix size of sclp_cpu_info structure s390/sclp: replace uninitialized early_event_mask_sccb variable with sccb_early s390/dasd: fix memory leak caused by dangling references to request_queue
This commit is contained in:
commit
22056614ee
9 changed files with 19 additions and 22 deletions
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@ -347,14 +347,14 @@ config SMP
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Even if you don't know what to do here, say Y.
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config NR_CPUS
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int "Maximum number of CPUs (2-64)"
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range 2 64
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int "Maximum number of CPUs (2-256)"
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range 2 256
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depends on SMP
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default "32" if !64BIT
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default "64" if 64BIT
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help
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This allows you to specify the maximum number of CPUs which this
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kernel will support. The maximum supported value is 64 and the
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kernel will support. The maximum supported value is 256 and the
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minimum value which makes sense is 2.
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This is purely to save memory - each supported CPU adds
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@ -8,6 +8,7 @@
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#include <linux/types.h>
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#include <asm/chpid.h>
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#include <asm/cpu.h>
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#define SCLP_CHP_INFO_MASK_SIZE 32
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@ -37,7 +38,7 @@ struct sclp_cpu_info {
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unsigned int standby;
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unsigned int combined;
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int has_cpu_type;
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struct sclp_cpu_entry cpu[255];
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struct sclp_cpu_entry cpu[MAX_CPU_ADDRESS + 1];
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};
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int sclp_get_cpu_info(struct sclp_cpu_info *info);
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@ -72,6 +72,7 @@ int main(void)
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/* constants used by the vdso */
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DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME);
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DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC);
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DEFINE(__CLOCK_THREAD_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID);
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DEFINE(__CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
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BLANK();
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/* idle data offsets */
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@ -125,7 +125,7 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore)
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psal[i] = 0x80000000;
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lowcore->paste[4] = (u32)(addr_t) psal;
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psal[0] = 0x20000000;
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psal[0] = 0x02000000;
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psal[2] = (u32)(addr_t) aste;
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*(unsigned long *) (aste + 2) = segment_table +
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_ASCE_TABLE_LENGTH + _ASCE_USER_BITS + _ASCE_TYPE_SEGMENT;
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@ -46,18 +46,13 @@ __kernel_clock_gettime:
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jnm 3f
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a %r0,__VDSO_TK_MULT(%r5)
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3: alr %r0,%r2
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al %r0,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */
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al %r1,__VDSO_XTIME_NSEC+4(%r5)
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brc 12,4f
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ahi %r0,1
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4: al %r0,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */
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al %r0,__VDSO_WTOM_NSEC(%r5)
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al %r1,__VDSO_WTOM_NSEC+4(%r5)
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brc 12,5f
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ahi %r0,1
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5: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */
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srdl %r0,0(%r2) /* >> tk->shift */
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l %r2,__VDSO_XTIME_SEC+4(%r5)
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al %r2,__VDSO_WTOM_SEC+4(%r5)
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l %r2,__VDSO_WTOM_SEC+4(%r5)
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cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */
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jne 1b
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basr %r5,0
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@ -23,7 +23,9 @@ __kernel_clock_getres:
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je 0f
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cghi %r2,__CLOCK_MONOTONIC
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je 0f
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cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */
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cghi %r2,__CLOCK_THREAD_CPUTIME_ID
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je 0f
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cghi %r2,-2 /* Per-thread CPUCLOCK with PID=0, VIRT=1 */
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jne 2f
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larl %r5,_vdso_data
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icm %r0,15,__LC_ECTG_OK(%r5)
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@ -22,7 +22,9 @@ __kernel_clock_gettime:
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larl %r5,_vdso_data
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cghi %r2,__CLOCK_REALTIME
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je 4f
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cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */
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cghi %r2,__CLOCK_THREAD_CPUTIME_ID
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je 9f
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cghi %r2,-2 /* Per-thread CPUCLOCK with PID=0, VIRT=1 */
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je 9f
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cghi %r2,__CLOCK_MONOTONIC
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jne 12f
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@ -35,13 +37,11 @@ __kernel_clock_gettime:
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jnz 0b
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stck 48(%r15) /* Store TOD clock */
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lgf %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */
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lg %r0,__VDSO_XTIME_SEC(%r5) /* tk->xtime_sec */
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alg %r0,__VDSO_WTOM_SEC(%r5) /* + wall_to_monotonic.sec */
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lg %r0,__VDSO_WTOM_SEC(%r5)
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lg %r1,48(%r15)
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sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */
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msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */
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alg %r1,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */
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alg %r1,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */
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alg %r1,__VDSO_WTOM_NSEC(%r5)
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srlg %r1,%r1,0(%r2) /* >> tk->shift */
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clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */
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jne 0b
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@ -87,7 +87,6 @@ void dasd_gendisk_free(struct dasd_block *block)
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{
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if (block->gdp) {
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del_gendisk(block->gdp);
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block->gdp->queue = NULL;
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block->gdp->private_data = NULL;
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put_disk(block->gdp);
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block->gdp = NULL;
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@ -35,7 +35,6 @@ struct read_info_sccb {
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u8 _reserved5[4096 - 112]; /* 112-4095 */
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} __packed __aligned(PAGE_SIZE);
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static __initdata struct init_sccb early_event_mask_sccb __aligned(PAGE_SIZE);
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static __initdata struct read_info_sccb early_read_info_sccb;
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static __initdata char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE);
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static unsigned long sclp_hsa_size;
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@ -113,7 +112,7 @@ static void __init sclp_facilities_detect(void)
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bool __init sclp_has_linemode(void)
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{
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struct init_sccb *sccb = &early_event_mask_sccb;
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struct init_sccb *sccb = (void *) &sccb_early;
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if (sccb->header.response_code != 0x20)
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return 0;
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@ -126,7 +125,7 @@ bool __init sclp_has_linemode(void)
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bool __init sclp_has_vt220(void)
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{
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struct init_sccb *sccb = &early_event_mask_sccb;
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struct init_sccb *sccb = (void *) &sccb_early;
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if (sccb->header.response_code != 0x20)
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return 0;
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