diff options
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/configs/nommu_kc705_defconfig | 1 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/cacheflush.h | 5 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/xtensa/kernel/process.c | 5 | ||||
| -rw-r--r-- | arch/xtensa/platforms/iss/simdisk.c | 16 |
5 files changed, 18 insertions, 11 deletions
diff --git a/arch/xtensa/configs/nommu_kc705_defconfig b/arch/xtensa/configs/nommu_kc705_defconfig index 88b2e222d4bf..fcb620ef3799 100644 --- a/arch/xtensa/configs/nommu_kc705_defconfig +++ b/arch/xtensa/configs/nommu_kc705_defconfig @@ -119,7 +119,6 @@ CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y CONFIG_DEBUG_ATOMIC_SLEEP=y CONFIG_STACKTRACE=y -# CONFIG_RCU_CPU_STALL_INFO is not set CONFIG_RCU_TRACE=y # CONFIG_FTRACE is not set # CONFIG_LD_NO_RELAX is not set diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h index cf907e5bf2f2..a8a041609c5d 100644 --- a/arch/xtensa/include/asm/cacheflush.h +++ b/arch/xtensa/include/asm/cacheflush.h @@ -120,7 +120,8 @@ void flush_cache_page(struct vm_area_struct*, #define flush_cache_vunmap(start,end) flush_cache_all() #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 -extern void flush_dcache_page(struct page*); +void flush_dcache_page(struct page *); +void flush_dcache_folio(struct folio *); void local_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); @@ -137,7 +138,9 @@ void local_flush_cache_page(struct vm_area_struct *vma, #define flush_cache_vunmap(start,end) do { } while (0) #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO #define flush_dcache_page(page) do { } while (0) +static inline void flush_dcache_folio(struct folio *folio) { } #define flush_icache_range local_flush_icache_range #define flush_cache_page(vma, addr, pfn) do { } while (0) diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index 7f63aca6a0d3..ad15fbc57283 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -215,7 +215,7 @@ struct mm_struct; /* Free all resources held by a thread. */ #define release_thread(thread) do { } while(0) -extern unsigned long get_wchan(struct task_struct *p); +extern unsigned long __get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->areg[1]) diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index 060165340612..47f933fed870 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -298,15 +298,12 @@ int copy_thread(unsigned long clone_flags, unsigned long usp_thread_fn, * These bracket the sleeping functions.. */ -unsigned long get_wchan(struct task_struct *p) +unsigned long __get_wchan(struct task_struct *p) { unsigned long sp, pc; unsigned long stack_page = (unsigned long) task_stack_page(p); int count = 0; - if (!p || p == current || task_is_running(p)) - return 0; - sp = p->thread.sp; pc = MAKE_PC_FROM_RA(p->thread.ra, p->thread.sp); diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index 3cdfa00738e0..07b642c1916a 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -100,7 +100,7 @@ static void simdisk_transfer(struct simdisk *dev, unsigned long sector, spin_unlock(&dev->lock); } -static blk_qc_t simdisk_submit_bio(struct bio *bio) +static void simdisk_submit_bio(struct bio *bio) { struct simdisk *dev = bio->bi_bdev->bd_disk->private_data; struct bio_vec bvec; @@ -118,7 +118,6 @@ static blk_qc_t simdisk_submit_bio(struct bio *bio) } bio_endio(bio); - return BLK_QC_T_NONE; } static int simdisk_open(struct block_device *bdev, fmode_t mode) @@ -259,6 +258,7 @@ static int __init simdisk_setup(struct simdisk *dev, int which, struct proc_dir_entry *procdir) { char tmp[2] = { '0' + which, 0 }; + int err = -ENOMEM; dev->fd = -1; dev->filename = NULL; @@ -267,7 +267,7 @@ static int __init simdisk_setup(struct simdisk *dev, int which, dev->gd = blk_alloc_disk(NUMA_NO_NODE); if (!dev->gd) - return -ENOMEM; + goto out; dev->gd->major = simdisk_major; dev->gd->first_minor = which; dev->gd->minors = SIMDISK_MINORS; @@ -275,10 +275,18 @@ static int __init simdisk_setup(struct simdisk *dev, int which, dev->gd->private_data = dev; snprintf(dev->gd->disk_name, 32, "simdisk%d", which); set_capacity(dev->gd, 0); - add_disk(dev->gd); + err = add_disk(dev->gd); + if (err) + goto out_cleanup_disk; dev->procfile = proc_create_data(tmp, 0644, procdir, &simdisk_proc_ops, dev); + return 0; + +out_cleanup_disk: + blk_cleanup_disk(dev->gd); +out: + return err; } static int __init simdisk_init(void) |