diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-23 22:10:51 +0900 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-23 22:10:51 +0900 |
commit | 9f30931a5482d66710210dafe9b4f2cc92320540 (patch) | |
tree | 1b3405d12a1b197d73473ea77c8fb712a632f55c | |
parent | a2c01ed5d46f0686c52272e09f7d2f5be9f573fd (diff) | |
parent | b67de018b37a97548645a879c627d4188518e907 (diff) |
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
"9 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
ocfs2/dlm: unlock lockres spinlock before dlm_lockres_put
fault-inject: fix inverted interval/probability values in printk
lib/Kconfig.debug: disable -Wframe-larger-than warnings with KASAN=y
mm: make sendfile(2) killable
thp: use is_zero_pfn() only after pte_present() check
mailmap: update Javier Martinez Canillas' email
MAINTAINERS: add Sergey as zsmalloc reviewer
mm: cma: fix incorrect type conversion for size during dma allocation
kmod: don't run async usermode helper as a child of kworker thread
-rw-r--r-- | .mailmap | 1 | ||||
-rw-r--r-- | MAINTAINERS | 1 | ||||
-rw-r--r-- | drivers/base/dma-contiguous.c | 2 | ||||
-rw-r--r-- | fs/ocfs2/dlm/dlmmaster.c | 3 | ||||
-rw-r--r-- | fs/ocfs2/dlm/dlmrecovery.c | 2 | ||||
-rw-r--r-- | include/linux/cma.h | 2 | ||||
-rw-r--r-- | include/linux/dma-contiguous.h | 4 | ||||
-rw-r--r-- | kernel/kmod.c | 8 | ||||
-rw-r--r-- | lib/Kconfig.debug | 1 | ||||
-rw-r--r-- | lib/fault-inject.c | 2 | ||||
-rw-r--r-- | mm/cma.c | 4 | ||||
-rw-r--r-- | mm/filemap.c | 9 | ||||
-rw-r--r-- | mm/huge_memory.c | 3 |
13 files changed, 26 insertions, 16 deletions
@@ -59,6 +59,7 @@ James Bottomley <jejb@mulgrave.(none)> James Bottomley <jejb@titanic.il.steeleye.com> James E Wilson <wilson@specifix.com> James Ketrenos <jketreno@io.(none)> +<javier@osg.samsung.com> <javier.martinez@collabora.co.uk> Jean Tourrilhes <jt@hpl.hp.com> Jeff Garzik <jgarzik@pretzel.yyz.us> Jens Axboe <axboe@suse.de> diff --git a/MAINTAINERS b/MAINTAINERS index ddc88c089c48..9de185da5f5b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11675,6 +11675,7 @@ F: drivers/tty/serial/zs.* ZSMALLOC COMPRESSED SLAB MEMORY ALLOCATOR M: Minchan Kim <minchan@kernel.org> M: Nitin Gupta <ngupta@vflare.org> +R: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> L: linux-mm@kvack.org S: Maintained F: mm/zsmalloc.c diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c index 950fff9ce453..a12ff9863d7e 100644 --- a/drivers/base/dma-contiguous.c +++ b/drivers/base/dma-contiguous.c @@ -187,7 +187,7 @@ int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base, * global one. Requires architecture specific dev_get_cma_area() helper * function. */ -struct page *dma_alloc_from_contiguous(struct device *dev, int count, +struct page *dma_alloc_from_contiguous(struct device *dev, size_t count, unsigned int align) { if (align > CONFIG_CMA_ALIGNMENT) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index ee5aa4daaea0..ce38b4ccc9ab 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -1658,12 +1658,13 @@ send_response: if (ret < 0) { mlog(ML_ERROR, "failed to dispatch assert master work\n"); response = DLM_MASTER_RESP_ERROR; + spin_unlock(&res->spinlock); dlm_lockres_put(res); } else { dispatched = 1; __dlm_lockres_grab_inflight_worker(dlm, res); + spin_unlock(&res->spinlock); } - spin_unlock(&res->spinlock); } else { if (res) dlm_lockres_put(res); diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 3d90ad7ff91f..58eaa5c0d387 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1723,8 +1723,8 @@ int dlm_master_requery_handler(struct o2net_msg *msg, u32 len, void *data, } else { dispatched = 1; __dlm_lockres_grab_inflight_worker(dlm, res); + spin_unlock(&res->spinlock); } - spin_unlock(&res->spinlock); } else { /* put.. incase we are not the master */ spin_unlock(&res->spinlock); diff --git a/include/linux/cma.h b/include/linux/cma.h index f7ef093ec49a..29f9e774ab76 100644 --- a/include/linux/cma.h +++ b/include/linux/cma.h @@ -26,6 +26,6 @@ extern int __init cma_declare_contiguous(phys_addr_t base, extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size, unsigned int order_per_bit, struct cma **res_cma); -extern struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align); +extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align); extern bool cma_release(struct cma *cma, const struct page *pages, unsigned int count); #endif diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h index 569bbd039896..fec734df1524 100644 --- a/include/linux/dma-contiguous.h +++ b/include/linux/dma-contiguous.h @@ -111,7 +111,7 @@ static inline int dma_declare_contiguous(struct device *dev, phys_addr_t size, return ret; } -struct page *dma_alloc_from_contiguous(struct device *dev, int count, +struct page *dma_alloc_from_contiguous(struct device *dev, size_t count, unsigned int order); bool dma_release_from_contiguous(struct device *dev, struct page *pages, int count); @@ -144,7 +144,7 @@ int dma_declare_contiguous(struct device *dev, phys_addr_t size, } static inline -struct page *dma_alloc_from_contiguous(struct device *dev, int count, +struct page *dma_alloc_from_contiguous(struct device *dev, size_t count, unsigned int order) { return NULL; diff --git a/kernel/kmod.c b/kernel/kmod.c index da98d0593de2..0277d1216f80 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -327,9 +327,13 @@ static void call_usermodehelper_exec_work(struct work_struct *work) call_usermodehelper_exec_sync(sub_info); } else { pid_t pid; - + /* + * Use CLONE_PARENT to reparent it to kthreadd; we do not + * want to pollute current->children, and we need a parent + * that always ignores SIGCHLD to ensure auto-reaping. + */ pid = kernel_thread(call_usermodehelper_exec_async, sub_info, - SIGCHLD); + CLONE_PARENT | SIGCHLD); if (pid < 0) { sub_info->retval = pid; umh_complete(sub_info); diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ab76b99adc85..1d1521c26302 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -197,6 +197,7 @@ config ENABLE_MUST_CHECK config FRAME_WARN int "Warn for stack frames larger than (needs gcc 4.4)" range 0 8192 + default 0 if KASAN default 1024 if !64BIT default 2048 if 64BIT help diff --git a/lib/fault-inject.c b/lib/fault-inject.c index f1cdeb024d17..6a823a53e357 100644 --- a/lib/fault-inject.c +++ b/lib/fault-inject.c @@ -44,7 +44,7 @@ static void fail_dump(struct fault_attr *attr) printk(KERN_NOTICE "FAULT_INJECTION: forcing a failure.\n" "name %pd, interval %lu, probability %lu, " "space %d, times %d\n", attr->dname, - attr->probability, attr->interval, + attr->interval, attr->probability, atomic_read(&attr->space), atomic_read(&attr->times)); if (attr->verbose > 1) @@ -361,7 +361,7 @@ err: * This function allocates part of contiguous memory on specific * contiguous memory area. */ -struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align) +struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align) { unsigned long mask, offset, pfn, start = 0; unsigned long bitmap_maxno, bitmap_no, bitmap_count; @@ -371,7 +371,7 @@ struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align) if (!cma || !cma->count) return NULL; - pr_debug("%s(cma %p, count %d, align %d)\n", __func__, (void *)cma, + pr_debug("%s(cma %p, count %zu, align %d)\n", __func__, (void *)cma, count, align); if (!count) diff --git a/mm/filemap.c b/mm/filemap.c index 1cc5467cf36c..327910c2400c 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2488,6 +2488,11 @@ again: break; } + if (fatal_signal_pending(current)) { + status = -EINTR; + break; + } + status = a_ops->write_begin(file, mapping, pos, bytes, flags, &page, &fsdata); if (unlikely(status < 0)) @@ -2525,10 +2530,6 @@ again: written += copied; balance_dirty_pages_ratelimited(mapping); - if (fatal_signal_pending(current)) { - status = -EINTR; - break; - } } while (iov_iter_count(i)); return written ? written : status; diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 4b06b8db9df2..bbac913f96bc 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2206,7 +2206,8 @@ static int __collapse_huge_page_isolate(struct vm_area_struct *vma, for (_pte = pte; _pte < pte+HPAGE_PMD_NR; _pte++, address += PAGE_SIZE) { pte_t pteval = *_pte; - if (pte_none(pteval) || is_zero_pfn(pte_pfn(pteval))) { + if (pte_none(pteval) || (pte_present(pteval) && + is_zero_pfn(pte_pfn(pteval)))) { if (!userfaultfd_armed(vma) && ++none_or_zero <= khugepaged_max_ptes_none) continue; |