diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2016-10-07 20:09:18 -0400 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-10-07 20:09:18 -0400 |
commit | bf02f5d2c080cf61b770e09add602ca360d538fb (patch) | |
tree | 1899f41554f8778a4cc1860adb53c95deaedaafb | |
parent | 4b899da50dcf1a7850715650281b5d76af8a5eb4 (diff) | |
parent | 2c563880ea8fdc900693ae372fa07b3894f8ff63 (diff) | |
download | linux-bf02f5d2c080cf61b770e09add602ca360d538fb.tar.bz2 |
Merge commit '2c563880ea' into work.xattr
pick xattr_handler conversion from lustre tree
33 files changed, 296 insertions, 530 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 16288e777ec3..562af94bec35 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -59,7 +59,6 @@ static struct dentry *binder_debugfs_dir_entry_proc; static struct binder_node *binder_context_mgr_node; static kuid_t binder_context_mgr_uid = INVALID_UID; static int binder_last_id; -static struct workqueue_struct *binder_deferred_workqueue; #define BINDER_DEBUG_ENTRY(name) \ static int binder_##name##_open(struct inode *inode, struct file *file) \ @@ -3227,7 +3226,7 @@ binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer) if (hlist_unhashed(&proc->deferred_work_node)) { hlist_add_head(&proc->deferred_work_node, &binder_deferred_list); - queue_work(binder_deferred_workqueue, &binder_deferred_work); + schedule_work(&binder_deferred_work); } mutex_unlock(&binder_deferred_lock); } @@ -3679,10 +3678,6 @@ static int __init binder_init(void) { int ret; - binder_deferred_workqueue = create_singlethread_workqueue("binder"); - if (!binder_deferred_workqueue) - return -ENOMEM; - binder_debugfs_dir_entry_root = debugfs_create_dir("binder", NULL); if (binder_debugfs_dir_entry_root) binder_debugfs_dir_entry_proc = debugfs_create_dir("proc", diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig index 25bcfa0b474f..2585821b24ab 100644 --- a/drivers/dma-buf/Kconfig +++ b/drivers/dma-buf/Kconfig @@ -17,4 +17,17 @@ config SYNC_FILE Files fds, to the DRM driver for example. More details at Documentation/sync_file.txt. +config SW_SYNC + bool "Sync File Validation Framework" + default n + depends on SYNC_FILE + depends on DEBUG_FS + ---help--- + A sync object driver that uses a 32bit counter to coordinate + synchronization. Useful when there is no hardware primitive backing + the synchronization. + + WARNING: improper use of this can result in deadlocking kernel + drivers from userspace. Intended for test and debug only. + endmenu diff --git a/drivers/dma-buf/Makefile b/drivers/dma-buf/Makefile index f353db213a81..210a10bfad2b 100644 --- a/drivers/dma-buf/Makefile +++ b/drivers/dma-buf/Makefile @@ -1,2 +1,3 @@ obj-y := dma-buf.o fence.o reservation.o seqno-fence.o fence-array.o obj-$(CONFIG_SYNC_FILE) += sync_file.o +obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o diff --git a/drivers/staging/android/sw_sync.c b/drivers/dma-buf/sw_sync.c index 115c9174705f..62e8e6dc7953 100644 --- a/drivers/staging/android/sw_sync.c +++ b/drivers/dma-buf/sw_sync.c @@ -1,5 +1,5 @@ /* - * drivers/dma-buf/sw_sync.c + * Sync File validation framework * * Copyright (C) 2012 Google, Inc. * @@ -23,8 +23,38 @@ #include "sync_debug.h" #define CREATE_TRACE_POINTS -#include "trace/sync.h" +#include "sync_trace.h" +/* + * SW SYNC validation framework + * + * A sync object driver that uses a 32bit counter to coordinate + * synchronization. Useful when there is no hardware primitive backing + * the synchronization. + * + * To start the framework just open: + * + * <debugfs>/sync/sw_sync + * + * That will create a sync timeline, all fences created under this timeline + * file descriptor will belong to the this timeline. + * + * The 'sw_sync' file can be opened many times as to create different + * timelines. + * + * Fences can be created with SW_SYNC_IOC_CREATE_FENCE ioctl with struct + * sw_sync_ioctl_create_fence as parameter. + * + * To increment the timeline counter, SW_SYNC_IOC_INC ioctl should be used + * with the increment as u32. This will update the last signaled value + * from the timeline and signal any fence that has a seqno smaller or equal + * to it. + * + * struct sw_sync_ioctl_create_fence + * @value: the seqno to initialise the fence with + * @name: the name of the new sync point + * @fence: return the fd of the new sync_file with the created fence + */ struct sw_sync_create_fence_data { __u32 value; char name[32]; @@ -35,6 +65,7 @@ struct sw_sync_create_fence_data { #define SW_SYNC_IOC_CREATE_FENCE _IOWR(SW_SYNC_IOC_MAGIC, 0,\ struct sw_sync_create_fence_data) + #define SW_SYNC_IOC_INC _IOW(SW_SYNC_IOC_MAGIC, 1, __u32) static const struct fence_ops timeline_fence_ops; @@ -176,7 +207,7 @@ static void timeline_fence_release(struct fence *fence) spin_lock_irqsave(fence->lock, flags); list_del(&pt->child_list); - if (WARN_ON_ONCE(!list_empty(&pt->active_list))) + if (!list_empty(&pt->active_list)) list_del(&pt->active_list); spin_unlock_irqrestore(fence->lock, flags); diff --git a/drivers/staging/android/sync_debug.c b/drivers/dma-buf/sync_debug.c index 4c5a85595a85..fab95204cf74 100644 --- a/drivers/staging/android/sync_debug.c +++ b/drivers/dma-buf/sync_debug.c @@ -1,5 +1,5 @@ /* - * drivers/base/sync.c + * Sync File validation framework and debug information * * Copyright (C) 2012 Google, Inc. * diff --git a/drivers/staging/android/sync_debug.h b/drivers/dma-buf/sync_debug.h index fab66396d421..d269aa6783aa 100644 --- a/drivers/staging/android/sync_debug.h +++ b/drivers/dma-buf/sync_debug.h @@ -1,5 +1,5 @@ /* - * include/linux/sync.h + * Sync File validation framework and debug infomation * * Copyright (C) 2012 Google, Inc. * diff --git a/drivers/staging/android/trace/sync.h b/drivers/dma-buf/sync_trace.h index 6b5ce9640ddd..d13d59ff1b85 100644 --- a/drivers/staging/android/trace/sync.h +++ b/drivers/dma-buf/sync_trace.h @@ -1,11 +1,11 @@ #undef TRACE_SYSTEM -#define TRACE_INCLUDE_PATH ../../drivers/staging/android/trace -#define TRACE_SYSTEM sync +#define TRACE_INCLUDE_PATH ../../drivers/dma-buf +#define TRACE_SYSTEM sync_trace #if !defined(_TRACE_SYNC_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_SYNC_H -#include "../sync_debug.h" +#include "sync_debug.h" #include <linux/tracepoint.h> TRACE_EVENT(sync_timeline, diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index 06e41d24ec62..6c00d6f765c6 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -24,19 +24,6 @@ config ANDROID_LOW_MEMORY_KILLER scripts (/init.rc), and it defines priority values with minimum free memory size for each priority. -config SW_SYNC - bool "Software synchronization framework" - default n - depends on SYNC_FILE - depends on DEBUG_FS - ---help--- - A sync object driver that uses a 32bit counter to coordinate - synchronization. Useful when there is no hardware primitive backing - the synchronization. - - WARNING: improper use of this can result in deadlocking kernel - drivers from userspace. Intended for test and debug only. - source "drivers/staging/android/ion/Kconfig" endif # if ANDROID diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile index 7ca61b77a8d4..7ed1be798909 100644 --- a/drivers/staging/android/Makefile +++ b/drivers/staging/android/Makefile @@ -4,4 +4,3 @@ obj-y += ion/ obj-$(CONFIG_ASHMEM) += ashmem.o obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o -obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index a2cf93b59016..88dd17e8b19a 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -205,19 +205,16 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap, goto err2; } - buffer->dev = dev; - buffer->size = len; - - table = heap->ops->map_dma(heap, buffer); - if (WARN_ONCE(table == NULL, - "heap->ops->map_dma should return ERR_PTR on error")) - table = ERR_PTR(-EINVAL); - if (IS_ERR(table)) { + if (buffer->sg_table == NULL) { + WARN_ONCE(1, "This heap needs to set the sgtable"); ret = -EINVAL; goto err1; } - buffer->sg_table = table; + table = buffer->sg_table; + buffer->dev = dev; + buffer->size = len; + if (ion_buffer_fault_user_mappings(buffer)) { int num_pages = PAGE_ALIGN(buffer->size) / PAGE_SIZE; struct scatterlist *sg; @@ -226,7 +223,7 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap, buffer->pages = vmalloc(sizeof(struct page *) * num_pages); if (!buffer->pages) { ret = -ENOMEM; - goto err; + goto err1; } for_each_sg(table->sgl, sg, table->nents, i) { @@ -260,8 +257,6 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap, mutex_unlock(&dev->buffer_lock); return buffer; -err: - heap->ops->unmap_dma(heap, buffer); err1: heap->ops->free(buffer); err2: @@ -273,7 +268,6 @@ void ion_buffer_destroy(struct ion_buffer *buffer) { if (WARN_ON(buffer->kmap_cnt > 0)) buffer->heap->ops->unmap_kernel(buffer->heap, buffer); - buffer->heap->ops->unmap_dma(buffer->heap, buffer); buffer->heap->ops->free(buffer); vfree(buffer->pages); kfree(buffer); @@ -551,7 +545,8 @@ struct ion_handle *ion_alloc(struct ion_client *client, size_t len, } EXPORT_SYMBOL(ion_alloc); -static void ion_free_nolock(struct ion_client *client, struct ion_handle *handle) +static void ion_free_nolock(struct ion_client *client, + struct ion_handle *handle) { bool valid_handle; @@ -576,32 +571,6 @@ void ion_free(struct ion_client *client, struct ion_handle *handle) } EXPORT_SYMBOL(ion_free); -int ion_phys(struct ion_client *client, struct ion_handle *handle, - ion_phys_addr_t *addr, size_t *len) -{ - struct ion_buffer *buffer; - int ret; - - mutex_lock(&client->lock); - if (!ion_handle_validate(client, handle)) { - mutex_unlock(&client->lock); - return -EINVAL; - } - - buffer = handle->buffer; - - if (!buffer->heap->ops->phys) { - pr_err("%s: ion_phys is not implemented by this heap (name=%s, type=%d).\n", - __func__, buffer->heap->name, buffer->heap->type); - mutex_unlock(&client->lock); - return -ENODEV; - } - mutex_unlock(&client->lock); - ret = buffer->heap->ops->phys(buffer->heap, buffer, addr, len); - return ret; -} -EXPORT_SYMBOL(ion_phys); - static void *ion_buffer_kmap_get(struct ion_buffer *buffer) { void *vaddr; @@ -917,26 +886,6 @@ void ion_client_destroy(struct ion_client *client) } EXPORT_SYMBOL(ion_client_destroy); -struct sg_table *ion_sg_table(struct ion_client *client, - struct ion_handle *handle) -{ - struct ion_buffer *buffer; - struct sg_table *table; - - mutex_lock(&client->lock); - if (!ion_handle_validate(client, handle)) { - pr_err("%s: invalid handle passed to map_dma.\n", - __func__); - mutex_unlock(&client->lock); - return ERR_PTR(-EINVAL); - } - buffer = handle->buffer; - table = buffer->sg_table; - mutex_unlock(&client->lock); - return table; -} -EXPORT_SYMBOL(ion_sg_table); - static void ion_buffer_sync_for_device(struct ion_buffer *buffer, struct device *dev, enum dma_data_direction direction); @@ -1358,7 +1307,8 @@ static long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) struct ion_handle *handle; mutex_lock(&client->lock); - handle = ion_handle_get_by_id_nolock(client, data.handle.handle); + handle = ion_handle_get_by_id_nolock(client, + data.handle.handle); if (IS_ERR(handle)) { mutex_unlock(&client->lock); return PTR_ERR(handle); @@ -1588,8 +1538,7 @@ void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap) { struct dentry *debug_file; - if (!heap->ops->allocate || !heap->ops->free || !heap->ops->map_dma || - !heap->ops->unmap_dma) + if (!heap->ops->allocate || !heap->ops->free) pr_err("%s: can not add heap with invalid ops struct.\n", __func__); @@ -1703,37 +1652,3 @@ void ion_device_destroy(struct ion_device *dev) } EXPORT_SYMBOL(ion_device_destroy); -void __init ion_reserve(struct ion_platform_data *data) -{ - int i; - - for (i = 0; i < data->nr; i++) { - if (data->heaps[i].size == 0) - continue; - - if (data->heaps[i].base == 0) { - phys_addr_t paddr; - - paddr = memblock_alloc_base(data->heaps[i].size, - data->heaps[i].align, - MEMBLOCK_ALLOC_ANYWHERE); - if (!paddr) { - pr_err("%s: error allocating memblock for heap %d\n", - __func__, i); - continue; - } - data->heaps[i].base = paddr; - } else { - int ret = memblock_reserve(data->heaps[i].base, - data->heaps[i].size); - if (ret) - pr_err("memblock reserve of %zx@%lx failed\n", - data->heaps[i].size, - data->heaps[i].base); - } - pr_info("%s: %s reserved base %lx size %zu\n", __func__, - data->heaps[i].name, - data->heaps[i].base, - data->heaps[i].size); - } -} diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h index a1331fc169a1..93dafb4586e4 100644 --- a/drivers/staging/android/ion/ion.h +++ b/drivers/staging/android/ion/ion.h @@ -73,17 +73,6 @@ struct ion_platform_data { }; /** - * ion_reserve() - reserve memory for ion heaps if applicable - * @data: platform data specifying starting physical address and - * size - * - * Calls memblock reserve to set aside memory for heaps that are - * located at specific memory addresses or of specific sizes not - * managed by the kernel - */ -void ion_reserve(struct ion_platform_data *data); - -/** * ion_client_create() - allocate a client and returns it * @dev: the global ion device * @name: used for debugging @@ -130,36 +119,6 @@ struct ion_handle *ion_alloc(struct ion_client *client, size_t len, void ion_free(struct ion_client *client, struct ion_handle *handle); /** - * ion_phys - returns the physical address and len of a handle - * @client: the client - * @handle: the handle - * @addr: a pointer to put the address in - * @len: a pointer to put the length in - * - * This function queries the heap for a particular handle to get the - * handle's physical address. It't output is only correct if - * a heap returns physically contiguous memory -- in other cases - * this api should not be implemented -- ion_sg_table should be used - * instead. Returns -EINVAL if the handle is invalid. This has - * no implications on the reference counting of the handle -- - * the returned value may not be valid if the caller is not - * holding a reference. - */ -int ion_phys(struct ion_client *client, struct ion_handle *handle, - ion_phys_addr_t *addr, size_t *len); - -/** - * ion_map_dma - return an sg_table describing a handle - * @client: the client - * @handle: the handle - * - * This function returns the sg_table describing - * a particular ion handle. - */ -struct sg_table *ion_sg_table(struct ion_client *client, - struct ion_handle *handle); - -/** * ion_map_kernel - create mapping for the given handle * @client: the client * @handle: handle to map diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c index 1fb0d81556da..c4f0795fb62e 100644 --- a/drivers/staging/android/ion/ion_carveout_heap.c +++ b/drivers/staging/android/ion/ion_carveout_heap.c @@ -25,6 +25,8 @@ #include "ion.h" #include "ion_priv.h" +#define ION_CARVEOUT_ALLOCATE_FAIL -1 + struct ion_carveout_heap { struct ion_heap heap; struct gen_pool *pool; @@ -56,19 +58,6 @@ void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr, gen_pool_free(carveout_heap->pool, addr, size); } -static int ion_carveout_heap_phys(struct ion_heap *heap, - struct ion_buffer *buffer, - ion_phys_addr_t *addr, size_t *len) -{ - struct sg_table *table = buffer->priv_virt; - struct page *page = sg_page(table->sgl); - ion_phys_addr_t paddr = PFN_PHYS(page_to_pfn(page)); - - *addr = paddr; - *len = buffer->size; - return 0; -} - static int ion_carveout_heap_allocate(struct ion_heap *heap, struct ion_buffer *buffer, unsigned long size, unsigned long align, @@ -95,7 +84,7 @@ static int ion_carveout_heap_allocate(struct ion_heap *heap, } sg_set_page(table->sgl, pfn_to_page(PFN_DOWN(paddr)), size, 0); - buffer->priv_virt = table; + buffer->sg_table = table; return 0; @@ -109,7 +98,7 @@ err_free: static void ion_carveout_heap_free(struct ion_buffer *buffer) { struct ion_heap *heap = buffer->heap; - struct sg_table *table = buffer->priv_virt; + struct sg_table *table = buffer->sg_table; struct page *page = sg_page(table->sgl); ion_phys_addr_t paddr = PFN_PHYS(page_to_pfn(page)); @@ -124,23 +113,9 @@ static void ion_carveout_heap_free(struct ion_buffer *buffer) kfree(table); } -static struct sg_table *ion_carveout_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ - return buffer->priv_virt; -} - -static void ion_carveout_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ -} - static struct ion_heap_ops carveout_heap_ops = { .allocate = ion_carveout_heap_allocate, .free = ion_carveout_heap_free, - .phys = ion_carveout_heap_phys, - .map_dma = ion_carveout_heap_map_dma, - .unmap_dma = ion_carveout_heap_unmap_dma, .map_user = ion_heap_map_user, .map_kernel = ion_heap_map_kernel, .unmap_kernel = ion_heap_unmap_kernel, diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c index e0553fee9b8a..560cf907aed5 100644 --- a/drivers/staging/android/ion/ion_chunk_heap.c +++ b/drivers/staging/android/ion/ion_chunk_heap.c @@ -75,7 +75,7 @@ static int ion_chunk_heap_allocate(struct ion_heap *heap, sg = sg_next(sg); } - buffer->priv_virt = table; + buffer->sg_table = table; chunk_heap->allocated += allocated_size; return 0; err: @@ -95,7 +95,7 @@ static void ion_chunk_heap_free(struct ion_buffer *buffer) struct ion_heap *heap = buffer->heap; struct ion_chunk_heap *chunk_heap = container_of(heap, struct ion_chunk_heap, heap); - struct sg_table *table = buffer->priv_virt; + struct sg_table *table = buffer->sg_table; struct scatterlist *sg; int i; unsigned long allocated_size; @@ -117,22 +117,9 @@ static void ion_chunk_heap_free(struct ion_buffer *buffer) kfree(table); } -static struct sg_table *ion_chunk_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ - return buffer->priv_virt; -} - -static void ion_chunk_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ -} - static struct ion_heap_ops chunk_heap_ops = { .allocate = ion_chunk_heap_allocate, .free = ion_chunk_heap_free, - .map_dma = ion_chunk_heap_map_dma, - .unmap_dma = ion_chunk_heap_unmap_dma, .map_user = ion_heap_map_user, .map_kernel = ion_heap_map_kernel, .unmap_kernel = ion_heap_unmap_kernel, diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c index a3446da4fdc2..d5ff3a282dfd 100644 --- a/drivers/staging/android/ion/ion_cma_heap.c +++ b/drivers/staging/android/ion/ion_cma_heap.c @@ -78,6 +78,7 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer, goto free_table; /* keep this for memory release */ buffer->priv_virt = info; + buffer->sg_table = info->table; dev_dbg(dev, "Allocate buffer %p\n", buffer); return 0; @@ -105,36 +106,6 @@ static void ion_cma_free(struct ion_buffer *buffer) kfree(info); } -/* return physical address in addr */ -static int ion_cma_phys(struct ion_heap *heap, struct ion_buffer *buffer, - ion_phys_addr_t *addr, size_t *len) -{ - struct ion_cma_heap *cma_heap = to_cma_heap(buffer->heap); - struct device *dev = cma_heap->dev; - struct ion_cma_buffer_info *info = buffer->priv_virt; - - dev_dbg(dev, "Return buffer %p physical address %pa\n", buffer, - &info->handle); - - *addr = info->handle; - *len = buffer->size; - - return 0; -} - -static struct sg_table *ion_cma_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ - struct ion_cma_buffer_info *info = buffer->priv_virt; - - return info->table; -} - -static void ion_cma_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ -} - static int ion_cma_mmap(struct ion_heap *mapper, struct ion_buffer *buffer, struct vm_area_struct *vma) { @@ -162,9 +133,6 @@ static void ion_cma_unmap_kernel(struct ion_heap *heap, static struct ion_heap_ops ion_cma_ops = { .allocate = ion_cma_allocate, .free = ion_cma_free, - .map_dma = ion_cma_heap_map_dma, - .unmap_dma = ion_cma_heap_unmap_dma, - .phys = ion_cma_phys, .map_user = ion_cma_mmap, .map_kernel = ion_cma_map_kernel, .unmap_kernel = ion_cma_unmap_kernel, diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h index 0239883bffb7..25e4bb2dac87 100644 --- a/drivers/staging/android/ion/ion_priv.h +++ b/drivers/staging/android/ion/ion_priv.h @@ -42,8 +42,6 @@ struct ion_buffer *ion_handle_buffer(struct ion_handle *handle); * @size: size of the buffer * @priv_virt: private data to the buffer representable as * a void * - * @priv_phys: private data to the buffer representable as - * an ion_phys_addr_t (and someday a phys_addr_t) * @lock: protects the buffers cnt fields * @kmap_cnt: number of times the buffer is mapped to the kernel * @vaddr: the kernel mapping if kmap_cnt is not zero @@ -69,10 +67,7 @@ struct ion_buffer { unsigned long flags; unsigned long private_flags; size_t size; - union { - void *priv_virt; - ion_phys_addr_t priv_phys; - }; + void *priv_virt; struct mutex lock; int kmap_cnt; void *vaddr; @@ -91,10 +86,6 @@ void ion_buffer_destroy(struct ion_buffer *buffer); * struct ion_heap_ops - ops to operate on a given heap * @allocate: allocate memory * @free: free memory - * @phys get physical address of a buffer (only define on - * physically contiguous heaps) - * @map_dma map the memory for dma to a scatterlist - * @unmap_dma unmap the memory for dma * @map_kernel map memory to the kernel * @unmap_kernel unmap memory to the kernel * @map_user map memory to userspace @@ -111,11 +102,6 @@ struct ion_heap_ops { struct ion_buffer *buffer, unsigned long len, unsigned long align, unsigned long flags); void (*free)(struct ion_buffer *buffer); - int (*phys)(struct ion_heap *heap, struct ion_buffer *buffer, - ion_phys_addr_t *addr, size_t *len); - struct sg_table * (*map_dma)(struct ion_heap *heap, - struct ion_buffer *buffer); - void (*unmap_dma)(struct ion_heap *heap, struct ion_buffer *buffer); void * (*map_kernel)(struct ion_heap *heap, struct ion_buffer *buffer); void (*unmap_kernel)(struct ion_heap *heap, struct ion_buffer *buffer); int (*map_user)(struct ion_heap *mapper, struct ion_buffer *buffer, @@ -328,20 +314,6 @@ struct ion_heap *ion_cma_heap_create(struct ion_platform_heap *); void ion_cma_heap_destroy(struct ion_heap *); /** - * kernel api to allocate/free from carveout -- used when carveout is - * used to back an architecture specific custom heap - */ -ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap, unsigned long size, - unsigned long align); -void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr, - unsigned long size); -/** - * The carveout heap returns physical addresses, since 0 may be a valid - * physical address, this is used to indicate allocation failed - */ -#define ION_CARVEOUT_ALLOCATE_FAIL -1 - -/** * functions for creating and destroying a heap pool -- allows you * to keep a pool of pre allocated memory to use from your heap. Keeping * a pool of memory that is ready for dma, ie any cached mapping have been diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index b69dfc706440..b697c6da0c3a 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -164,7 +164,7 @@ static int ion_system_heap_allocate(struct ion_heap *heap, list_del(&page->lru); } - buffer->priv_virt = table; + buffer->sg_table = table; return 0; free_table: @@ -199,17 +199,6 @@ static void ion_system_heap_free(struct ion_buffer *buffer) kfree(table); } -static struct sg_table *ion_system_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ - return buffer->priv_virt; -} - -static void ion_system_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ -} - static int ion_system_heap_shrink(struct ion_heap *heap, gfp_t gfp_mask, int nr_to_scan) { @@ -243,8 +232,6 @@ static int ion_system_heap_shrink(struct ion_heap *heap, gfp_t gfp_mask, static struct ion_heap_ops system_heap_ops = { .allocate = ion_system_heap_allocate, .free = ion_system_heap_free, - .map_dma = ion_system_heap_map_dma, - .unmap_dma = ion_system_heap_unmap_dma, .map_kernel = ion_heap_map_kernel, .unmap_kernel = ion_heap_unmap_kernel, .map_user = ion_heap_map_user, @@ -358,7 +345,7 @@ static int ion_system_contig_heap_allocate(struct ion_heap *heap, sg_set_page(table->sgl, page, len, 0); - buffer->priv_virt = table; + buffer->sg_table = table; ion_pages_sync_for_device(NULL, page, len, DMA_BIDIRECTIONAL); @@ -375,7 +362,7 @@ free_pages: static void ion_system_contig_heap_free(struct ion_buffer *buffer) { - struct sg_table *table = buffer->priv_virt; + struct sg_table *table = buffer->sg_table; struct page *page = sg_page(table->sgl); unsigned long pages = PAGE_ALIGN(buffer->size) >> PAGE_SHIFT; unsigned long i; @@ -386,34 +373,9 @@ static void ion_system_contig_heap_free(struct ion_buffer *buffer) kfree(table); } -static int ion_system_contig_heap_phys(struct ion_heap *heap, - struct ion_buffer *buffer, - ion_phys_addr_t *addr, size_t *len) -{ - struct sg_table *table = buffer->priv_virt; - struct page *page = sg_page(table->sgl); - *addr = page_to_phys(page); - *len = buffer->size; - return 0; -} - -static struct sg_table *ion_system_contig_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ - return buffer->priv_virt; -} - -static void ion_system_contig_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) -{ -} - static struct ion_heap_ops kmalloc_ops = { .allocate = ion_system_contig_heap_allocate, .free = ion_system_contig_heap_free, - .phys = ion_system_contig_heap_phys, - .map_dma = ion_system_contig_heap_map_dma, - .unmap_dma = ion_system_contig_heap_unmap_dma, .map_kernel = ion_heap_map_kernel, .unmap_kernel = ion_heap_unmap_kernel, .map_user = ion_heap_map_user, diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c index 10f94ec34536..608403c7586b 100644 --- a/drivers/staging/comedi/drivers/usbduxfast.c +++ b/drivers/staging/comedi/drivers/usbduxfast.c @@ -946,10 +946,8 @@ static int usbduxfast_auto_attach(struct comedi_device *dev, } devpriv->urb = usb_alloc_urb(0, GFP_KERNEL); - if (!devpriv->urb) { - dev_err(dev->class_dev, "Could not alloc. urb\n"); + if (!devpriv->urb) return -ENOMEM; - } devpriv->inbuf = kmalloc(SIZEINBUF, GFP_KERNEL); if (!devpriv->inbuf) diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c index b7337fd813d5..47b69cbdb45b 100644 --- a/drivers/staging/ks7010/ks7010_sdio.c +++ b/drivers/staging/ks7010/ks7010_sdio.c @@ -297,11 +297,10 @@ static int enqueue_txdev(struct ks_wlan_private *priv, unsigned char *p, static int write_to_device(struct ks_wlan_private *priv, unsigned char *buffer, unsigned long size) { - int rc, retval; + int retval; unsigned char rw_data; struct hostif_hdr *hdr; hdr = (struct hostif_hdr *)buffer; - rc = 0; DPRINTK(4, "size=%d\n", hdr->size); if (hdr->event < HIF_DATA_REQ || HIF_REQ_MAX < hdr->event) { @@ -711,7 +710,6 @@ static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index) int rc = 0; int retval; unsigned char *data_buf; - data_buf = NULL; data_buf = kmalloc(sizeof(u32), GFP_KERNEL); if (!data_buf) { @@ -732,8 +730,7 @@ static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index) goto error_out; } error_out: - if (data_buf) - kfree(data_buf); + kfree(data_buf); return rc; } @@ -744,7 +741,7 @@ static int ks7010_sdio_data_compare(struct ks_wlan_private *priv, u32 address, int rc = 0; int retval; unsigned char *read_buf; - read_buf = NULL; + read_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL); if (!read_buf) { rc = 1; @@ -763,8 +760,7 @@ static int ks7010_sdio_data_compare(struct ks_wlan_private *priv, u32 address, goto error_out; } error_out: - if (read_buf) - kfree(read_buf); + kfree(read_buf); return rc; } @@ -778,8 +774,6 @@ static int ks7010_upload_firmware(struct ks_wlan_private *priv, int length; const struct firmware *fw_entry = NULL; - rom_buf = NULL; - /* buffer allocate */ rom_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL); if (!rom_buf) { @@ -879,8 +873,7 @@ static int ks7010_upload_firmware(struct ks_wlan_private *priv, release_firmware(fw_entry); error_out0: sdio_release_host(card->func); - if (rom_buf) - kfree(rom_buf); + kfree(rom_buf); return rc; } @@ -1141,7 +1134,6 @@ static void ks7010_sdio_remove(struct sdio_func *func) int ret; struct ks_sdio_card *card; struct ks_wlan_private *priv; - struct net_device *netdev; DPRINTK(1, "ks7010_sdio_remove()\n"); card = sdio_get_drvdata(func); @@ -1151,8 +1143,9 @@ static void ks7010_sdio_remove(struct sdio_func *func) DPRINTK(1, "priv = card->priv\n"); priv = card->priv; - netdev = priv->net_dev; if (priv) { + struct net_device *netdev = priv->net_dev; + ks_wlan_net_stop(netdev); DPRINTK(1, "ks_wlan_net_stop\n"); @@ -1199,9 +1192,7 @@ static void ks7010_sdio_remove(struct sdio_func *func) unregister_netdev(netdev); trx_device_exit(priv); - if (priv->ks_wlan_hw.read_buf) { - kfree(priv->ks_wlan_hw.read_buf); - } + kfree(priv->ks_wlan_hw.read_buf); free_netdev(priv->net_dev); card->priv = NULL; } diff --git a/drivers/staging/ks7010/michael_mic.c b/drivers/staging/ks7010/michael_mic.c index e14c109b3cab..d332678781d2 100644 --- a/drivers/staging/ks7010/michael_mic.c +++ b/drivers/staging/ks7010/michael_mic.c @@ -20,15 +20,21 @@ #define getUInt32( A, B ) (uint32_t)(A[B+0] << 0) + (A[B+1] << 8) + (A[B+2] << 16) + (A[B+3] << 24) // Convert from UInt32 to Byte[] in a portable way -#define putUInt32( A, B, C ) A[B+0] = (uint8_t) (C & 0xff); \ - A[B+1] = (uint8_t) ((C>>8) & 0xff); \ - A[B+2] = (uint8_t) ((C>>16) & 0xff); \ - A[B+3] = (uint8_t) ((C>>24) & 0xff) +#define putUInt32(A, B, C) \ +do { \ + A[B + 0] = (uint8_t)(C & 0xff); \ + A[B + 1] = (uint8_t)((C >> 8) & 0xff); \ + A[B + 2] = (uint8_t)((C >> 16) & 0xff); \ + A[B + 3] = (uint8_t)((C >> 24) & 0xff); \ +} while (0) // Reset the state to the empty message. -#define MichaelClear( A ) A->L = A->K0; \ - A->R = A->K1; \ - A->nBytesInM = 0; +#define MichaelClear(A) \ +do { \ + A->L = A->K0; \ + A->R = A->K1; \ + A->nBytesInM = 0; \ +} while (0) static void MichaelInitializeFunction(struct michel_mic_t *Mic, uint8_t * key) diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c index 07ec540946cd..cbc9a9c5385f 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c @@ -1468,11 +1468,6 @@ ksocknal_close_conn_locked(struct ksock_conn *conn, int error) conn->ksnc_route = NULL; -#if 0 /* irrelevant with only eager routes */ - /* make route least favourite */ - list_del(&route->ksnr_list); - list_add_tail(&route->ksnr_list, &peer->ksnp_routes); -#endif ksocknal_route_decref(route); /* drop conn's ref on route */ } diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c index 303576d815c6..d53da552bd61 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c @@ -2008,13 +2008,6 @@ ksocknal_connect(struct ksock_route *route) list_splice_init(&peer->ksnp_tx_queue, &zombies); } -#if 0 /* irrelevant with only eager routes */ - if (!route->ksnr_deleted) { - /* make this route least-favourite for re-selection */ - list_del(&route->ksnr_list); - list_add_tail(&route->ksnr_list, &peer->ksnp_routes); - } -#endif write_unlock_bh(&ksocknal_data.ksnd_global_lock); ksocknal_peer_failed(peer); diff --git a/drivers/staging/lustre/lnet/lnet/lib-msg.c b/drivers/staging/lustre/lnet/lnet/lib-msg.c index 910e106e221d..0897e588bd54 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-msg.c +++ b/drivers/staging/lustre/lnet/lnet/lib-msg.c @@ -449,23 +449,7 @@ lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int status) if (!msg) return; -#if 0 - CDEBUG(D_WARNING, "%s msg->%s Flags:%s%s%s%s%s%s%s%s%s%s%s txp %s rxp %s\n", - lnet_msgtyp2str(msg->msg_type), libcfs_id2str(msg->msg_target), - msg->msg_target_is_router ? "t" : "", - msg->msg_routing ? "X" : "", - msg->msg_ack ? "A" : "", - msg->msg_sending ? "S" : "", - msg->msg_receiving ? "R" : "", - msg->msg_delayed ? "d" : "", - msg->msg_txcredit ? "C" : "", - msg->msg_peertxcredit ? "c" : "", - msg->msg_rtrcredit ? "F" : "", - msg->msg_peerrtrcredit ? "f" : "", - msg->msg_onactivelist ? "!" : "", - !msg->msg_txpeer ? "<none>" : libcfs_nid2str(msg->msg_txpeer->lp_nid), - !msg->msg_rxpeer ? "<none>" : libcfs_nid2str(msg->msg_rxpeer->lp_nid)); -#endif + msg->msg_ev.status = status; if (msg->msg_md) { diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 57281b9e31ff..58a7401046e0 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -3213,10 +3213,10 @@ const struct inode_operations ll_file_inode_operations = { .setattr = ll_setattr, .getattr = ll_getattr, .permission = ll_inode_permission, - .setxattr = ll_setxattr, - .getxattr = ll_getxattr, + .setxattr = generic_setxattr, + .getxattr = generic_getxattr, .listxattr = ll_listxattr, - .removexattr = ll_removexattr, + .removexattr = generic_removexattr, .fiemap = ll_fiemap, .get_acl = ll_get_acl, }; diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 4d6d589a1677..27d3f7706d44 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -42,6 +42,7 @@ #include "../include/lustre_mdc.h" #include "../include/lustre_intent.h" #include <linux/compat.h> +#include <linux/xattr.h> #include <linux/posix_acl_xattr.h> #include "vvp_internal.h" @@ -933,12 +934,9 @@ static inline __u64 ll_file_maxbytes(struct inode *inode) } /* llite/xattr.c */ -int ll_setxattr(struct dentry *dentry, struct inode *inode, - const char *name, const void *value, size_t size, int flags); -ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode, - const char *name, void *buffer, size_t size); +extern const struct xattr_handler *ll_xattr_handlers[]; + ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size); -int ll_removexattr(struct dentry *dentry, const char *name); /** * Common IO arguments for various VFS I/O interfaces. diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 546063e728db..75d568f5bb90 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -418,6 +418,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt, CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid)); sb->s_op = &lustre_super_operations; + sb->s_xattr = ll_xattr_handlers; #if THREAD_SIZE >= 8192 /*b=17630*/ sb->s_export_op = &lustre_export_operations; #endif diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index 2c4dc69731e8..09e180170de2 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -1106,10 +1106,10 @@ const struct inode_operations ll_dir_inode_operations = { .setattr = ll_setattr, .getattr = ll_getattr, .permission = ll_inode_permission, - .setxattr = ll_setxattr, - .getxattr = ll_getxattr, + .setxattr = generic_setxattr, + .getxattr = generic_getxattr, .listxattr = ll_listxattr, - .removexattr = ll_removexattr, + .removexattr = generic_removexattr, .get_acl = ll_get_acl, }; @@ -1117,9 +1117,9 @@ const struct inode_operations ll_special_inode_operations = { .setattr = ll_setattr, .getattr = ll_getattr, .permission = ll_inode_permission, - .setxattr = ll_setxattr, - .getxattr = ll_getxattr, + .setxattr = generic_setxattr, + .getxattr = generic_getxattr, .listxattr = ll_listxattr, - .removexattr = ll_removexattr, + .removexattr = generic_removexattr, .get_acl = ll_get_acl, }; diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c index 8c8bdfe1ad71..4601be94dd22 100644 --- a/drivers/staging/lustre/lustre/llite/symlink.c +++ b/drivers/staging/lustre/lustre/llite/symlink.c @@ -155,8 +155,8 @@ const struct inode_operations ll_fast_symlink_inode_operations = { .get_link = ll_get_link, .getattr = ll_getattr, .permission = ll_inode_permission, - .setxattr = ll_setxattr, - .getxattr = ll_getxattr, + .setxattr = generic_setxattr, + .getxattr = generic_getxattr, .listxattr = ll_listxattr, - .removexattr = ll_removexattr, + .removexattr = generic_removexattr, }; diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index 98303cf85815..a02b80269b5c 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -99,46 +99,57 @@ int xattr_type_filter(struct ll_sb_info *sbi, int xattr_type) return 0; } -static -int ll_setxattr_common(struct inode *inode, const char *name, - const void *value, size_t size, - int flags, __u64 valid) +static int +ll_xattr_set_common(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, + int flags) { + char fullname[strlen(handler->prefix) + strlen(name) + 1]; struct ll_sb_info *sbi = ll_i2sbi(inode); struct ptlrpc_request *req = NULL; - int xattr_type, rc; const char *pv = value; + __u64 valid; + int rc; + + if (flags == XATTR_REPLACE) { + ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_REMOVEXATTR, 1); + valid = OBD_MD_FLXATTRRM; + } else { + ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1); + valid = OBD_MD_FLXATTR; + } - xattr_type = get_xattr_type(name); - rc = xattr_type_filter(sbi, xattr_type); + rc = xattr_type_filter(sbi, handler->flags); if (rc) return rc; - if ((xattr_type == XATTR_ACL_ACCESS_T || - xattr_type == XATTR_ACL_DEFAULT_T) && + if ((handler->flags == XATTR_ACL_ACCESS_T || + handler->flags == XATTR_ACL_DEFAULT_T) && !inode_owner_or_capable(inode)) return -EPERM; /* b10667: ignore lustre special xattr for now */ - if ((xattr_type == XATTR_TRUSTED_T && strcmp(name, "trusted.lov") == 0) || - (xattr_type == XATTR_LUSTRE_T && strcmp(name, "lustre.lov") == 0)) + if ((handler->flags == XATTR_TRUSTED_T && !strcmp(name, "lov")) || + (handler->flags == XATTR_LUSTRE_T && !strcmp(name, "lov"))) return 0; /* b15587: ignore security.capability xattr for now */ - if ((xattr_type == XATTR_SECURITY_T && - strcmp(name, "security.capability") == 0)) + if ((handler->flags == XATTR_SECURITY_T && + !strcmp(name, "capability"))) return 0; /* LU-549: Disable security.selinux when selinux is disabled */ - if (xattr_type == XATTR_SECURITY_T && !selinux_is_enabled() && - strcmp(name, "security.selinux") == 0) + if (handler->flags == XATTR_SECURITY_T && !selinux_is_enabled() && + strcmp(name, "selinux") == 0) return -EOPNOTSUPP; + sprintf(fullname, "%s%s\n", handler->prefix, name); rc = md_setxattr(sbi->ll_md_exp, ll_inode2fid(inode), - valid, name, pv, size, 0, flags, + valid, fullname, pv, size, 0, flags, ll_i2suppgid(inode), &req); if (rc) { - if (rc == -EOPNOTSUPP && xattr_type == XATTR_USER_T) { + if (rc == -EOPNOTSUPP && handler->flags == XATTR_USER_T) { LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n"); sbi->ll_flags &= ~LL_SBI_USER_XATTR; } @@ -149,8 +160,10 @@ int ll_setxattr_common(struct inode *inode, const char *name, return 0; } -int ll_setxattr(struct dentry *dentry, struct inode *inode, - const char *name, const void *value, size_t size, int flags) +static int ll_xattr_set(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, + int flags) { LASSERT(inode); LASSERT(name); @@ -158,20 +171,24 @@ int ll_setxattr(struct dentry *dentry, struct inode *inode, CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n", PFID(ll_inode2fid(inode)), inode, name); - ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1); - - if ((strncmp(name, XATTR_TRUSTED_PREFIX, - sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0 && - strcmp(name + sizeof(XATTR_TRUSTED_PREFIX) - 1, "lov") == 0) || - (strncmp(name, XATTR_LUSTRE_PREFIX, - sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 && - strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) { + if (!strcmp(name, "lov")) { struct lov_user_md *lump = (struct lov_user_md *)value; + int op_type = flags == XATTR_REPLACE ? LPROC_LL_REMOVEXATTR : + LPROC_LL_SETXATTR; int rc = 0; + ll_stats_ops_tally(ll_i2sbi(inode), op_type, 1); + if (size != 0 && size < sizeof(struct lov_user_md)) return -EINVAL; + /* + * It is possible to set an xattr to a "" value of zero size. + * For this case we are going to treat it as a removal. + */ + if (!size && lump) + lump = NULL; + /* Attributes that are saved via getxattr will always have * the stripe_offset as 0. Instead, the MDS should be * allowed to pick the starting OST index. b=17846 @@ -194,92 +211,27 @@ int ll_setxattr(struct dentry *dentry, struct inode *inode, return rc; - } else if (strcmp(name, XATTR_NAME_LMA) == 0 || - strcmp(name, XATTR_NAME_LINK) == 0) + } else if (!strcmp(name, "lma") || !strcmp(name, "link")) { + ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1); return 0; + } - return ll_setxattr_common(inode, name, value, size, flags, - OBD_MD_FLXATTR); -} - -int ll_removexattr(struct dentry *dentry, const char *name) -{ - struct inode *inode = d_inode(dentry); - - LASSERT(inode); - LASSERT(name); - - CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n", - PFID(ll_inode2fid(inode)), inode, name); - - ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_REMOVEXATTR, 1); - return ll_setxattr_common(inode, name, NULL, 0, 0, - OBD_MD_FLXATTRRM); + return ll_xattr_set_common(handler, dentry, inode, name, value, size, + flags); } -static -int ll_getxattr_common(struct inode *inode, const char *name, - void *buffer, size_t size, __u64 valid) +static int +ll_xattr_list(struct inode *inode, const char *name, int type, void *buffer, + size_t size, __u64 valid) { + struct ll_inode_info *lli = ll_i2info(inode); struct ll_sb_info *sbi = ll_i2sbi(inode); struct ptlrpc_request *req = NULL; struct mdt_body *body; - int xattr_type, rc; void *xdata; - struct ll_inode_info *lli = ll_i2info(inode); - - CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", - PFID(ll_inode2fid(inode)), inode); - - /* listxattr have slightly different behavior from of ext3: - * without 'user_xattr' ext3 will list all xattr names but - * filtered out "^user..*"; we list them all for simplicity. - */ - if (!name) { - xattr_type = XATTR_OTHER_T; - goto do_getxattr; - } - - xattr_type = get_xattr_type(name); - rc = xattr_type_filter(sbi, xattr_type); - if (rc) - return rc; - - /* b15587: ignore security.capability xattr for now */ - if ((xattr_type == XATTR_SECURITY_T && - strcmp(name, "security.capability") == 0)) - return -ENODATA; - - /* LU-549: Disable security.selinux when selinux is disabled */ - if (xattr_type == XATTR_SECURITY_T && !selinux_is_enabled() && - strcmp(name, "security.selinux") == 0) - return -EOPNOTSUPP; - -#ifdef CONFIG_FS_POSIX_ACL - /* posix acl is under protection of LOOKUP lock. when calling to this, - * we just have path resolution to the target inode, so we have great - * chance that cached ACL is uptodate. - */ - if (xattr_type == XATTR_ACL_ACCESS_T) { - struct posix_acl *acl; - - spin_lock(&lli->lli_lock); - acl = posix_acl_dup(lli->lli_posix_acl); - spin_unlock(&lli->lli_lock); - - if (!acl) - return -ENODATA; + int rc; - rc = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); - posix_acl_release(acl); - return rc; - } - if (xattr_type == XATTR_ACL_DEFAULT_T && !S_ISDIR(inode->i_mode)) - return -ENODATA; -#endif - -do_getxattr: - if (sbi->ll_xattr_cache_enabled && xattr_type != XATTR_ACL_ACCESS_T) { + if (sbi->ll_xattr_cache_enabled && type != XATTR_ACL_ACCESS_T) { rc = ll_xattr_cache_get(inode, name, buffer, size, valid); if (rc == -EAGAIN) goto getxattr_nocache; @@ -340,7 +292,7 @@ getxattr_nocache: } out_xattr: - if (rc == -EOPNOTSUPP && xattr_type == XATTR_USER_T) { + if (rc == -EOPNOTSUPP && type == XATTR_USER_T) { LCONSOLE_INFO( "%s: disabling user_xattr feature because it is not supported on the server: rc = %d\n", ll_get_fsname(inode->i_sb, NULL, 0), rc); @@ -351,8 +303,63 @@ out: return rc; } -ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode, - const char *name, void *buffer, size_t size) +static int ll_xattr_get_common(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) +{ + char fullname[strlen(handler->prefix) + strlen(name) + 1]; + struct ll_sb_info *sbi = ll_i2sbi(inode); + struct ll_inode_info *lli = ll_i2info(inode); + int rc; + + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); + + ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1); + + rc = xattr_type_filter(sbi, handler->flags); + if (rc) + return rc; + + /* b15587: ignore security.capability xattr for now */ + if ((handler->flags == XATTR_SECURITY_T && !strcmp(name, "capability"))) + return -ENODATA; + + /* LU-549: Disable security.selinux when selinux is disabled */ + if (handler->flags == XATTR_SECURITY_T && !selinux_is_enabled() && + !strcmp(name, "selinux")) + return -EOPNOTSUPP; + +#ifdef CONFIG_FS_POSIX_ACL + /* posix acl is under protection of LOOKUP lock. when calling to this, + * we just have path resolution to the target inode, so we have great + * chance that cached ACL is uptodate. + */ + if (handler->flags == XATTR_ACL_ACCESS_T) { + struct posix_acl *acl; + + spin_lock(&lli->lli_lock); + acl = posix_acl_dup(lli->lli_posix_acl); + spin_unlock(&lli->lli_lock); + + if (!acl) + return -ENODATA; + + rc = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); + posix_acl_release(acl); + return rc; + } + if (handler->flags == XATTR_ACL_DEFAULT_T && !S_ISDIR(inode->i_mode)) + return -ENODATA; +#endif + sprintf(fullname, "%s%s\n", handler->prefix, name); + return ll_xattr_list(inode, fullname, handler->flags, buffer, size, + OBD_MD_FLXATTR); +} + +static int ll_xattr_get(const struct xattr_handler *handler, + struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { LASSERT(inode); LASSERT(name); @@ -360,20 +367,15 @@ ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode, CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n", PFID(ll_inode2fid(inode)), inode, name); - ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1); - - if ((strncmp(name, XATTR_TRUSTED_PREFIX, - sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0 && - strcmp(name + sizeof(XATTR_TRUSTED_PREFIX) - 1, "lov") == 0) || - (strncmp(name, XATTR_LUSTRE_PREFIX, - sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 && - strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) { + if (!strcmp(name, "lov")) { struct lov_stripe_md *lsm; struct lov_user_md *lump; struct lov_mds_md *lmm = NULL; struct ptlrpc_request *request = NULL; int rc = 0, lmmsize = 0; + ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1); + if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode)) return -ENODATA; @@ -439,7 +441,7 @@ out: return rc; } - return ll_getxattr_common(inode, name, buffer, size, OBD_MD_FLXATTR); + return ll_xattr_get_common(handler, dentry, inode, name, buffer, size); } ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size) @@ -457,7 +459,8 @@ ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size) ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LISTXATTR, 1); - rc = ll_getxattr_common(inode, NULL, buffer, size, OBD_MD_FLXATTRLS); + rc = ll_xattr_list(inode, NULL, XATTR_OTHER_T, buffer, size, + OBD_MD_FLXATTRLS); if (rc < 0) goto out; @@ -518,3 +521,57 @@ out: return rc; } + +static const struct xattr_handler ll_user_xattr_handler = { + .prefix = XATTR_USER_PREFIX, + .flags = XATTR_USER_T, + .get = ll_xattr_get_common, + .set = ll_xattr_set_common, +}; + +static const struct xattr_handler ll_trusted_xattr_handler = { + .prefix = XATTR_TRUSTED_PREFIX, + .flags = XATTR_TRUSTED_T, + .get = ll_xattr_get, + .set = ll_xattr_set, +}; + +static const struct xattr_handler ll_security_xattr_handler = { + .prefix = XATTR_SECURITY_PREFIX, + .flags = XATTR_SECURITY_T, + .get = ll_xattr_get_common, + .set = ll_xattr_set_common, +}; + +static const struct xattr_handler ll_acl_access_xattr_handler = { + .prefix = XATTR_NAME_POSIX_ACL_ACCESS, + .flags = XATTR_ACL_ACCESS_T, + .get = ll_xattr_get_common, + .set = ll_xattr_set_common, +}; + +static const struct xattr_handler ll_acl_default_xattr_handler = { + .prefix = XATTR_NAME_POSIX_ACL_DEFAULT, + .flags = XATTR_ACL_DEFAULT_T, + .get = ll_xattr_get_common, + .set = ll_xattr_set_common, +}; + +static const struct xattr_handler ll_lustre_xattr_handler = { + .prefix = XATTR_LUSTRE_PREFIX, + .flags = XATTR_LUSTRE_T, + .get = ll_xattr_get, + .set = ll_xattr_set, +}; + +const struct xattr_handler *ll_xattr_handlers[] = { + &ll_user_xattr_handler, + &ll_trusted_xattr_handler, + &ll_security_xattr_handler, +#ifdef CONFIG_FS_POSIX_ACL + &ll_acl_access_xattr_handler, + &ll_acl_default_xattr_handler, +#endif + &ll_lustre_xattr_handler, + NULL, +}; diff --git a/drivers/staging/media/lirc/lirc_imon.c b/drivers/staging/media/lirc/lirc_imon.c index ff1926ca1f96..a183e68ec320 100644 --- a/drivers/staging/media/lirc/lirc_imon.c +++ b/drivers/staging/media/lirc/lirc_imon.c @@ -797,16 +797,11 @@ static int imon_probe(struct usb_interface *interface, goto free_rbuf; } rx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!rx_urb) { - dev_err(dev, "%s: usb_alloc_urb failed for IR urb\n", __func__); + if (!rx_urb) goto free_lirc_buf; - } tx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!tx_urb) { - dev_err(dev, "%s: usb_alloc_urb failed for display urb\n", - __func__); + if (!tx_urb) goto free_rx_urb; - } mutex_init(&context->ctx_lock); context->vfd_proto_6p = vfd_proto_6p; diff --git a/drivers/staging/media/lirc/lirc_sasem.c b/drivers/staging/media/lirc/lirc_sasem.c index 2218d0042030..b080fde6d740 100644 --- a/drivers/staging/media/lirc/lirc_sasem.c +++ b/drivers/staging/media/lirc/lirc_sasem.c @@ -758,17 +758,12 @@ static int sasem_probe(struct usb_interface *interface, } rx_urb = usb_alloc_urb(0, GFP_KERNEL); if (!rx_urb) { - dev_err(&interface->dev, - "%s: usb_alloc_urb failed for IR urb\n", __func__); alloc_status = 5; goto alloc_status_switch; } if (vfd_ep_found) { tx_urb = usb_alloc_urb(0, GFP_KERNEL); if (!tx_urb) { - dev_err(&interface->dev, - "%s: usb_alloc_urb failed for VFD urb", - __func__); alloc_status = 6; goto alloc_status_switch; } diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/hdm-usb/hdm_usb.c index aeae071f2823..9ec29788c047 100644 --- a/drivers/staging/most/hdm-usb/hdm_usb.c +++ b/drivers/staging/most/hdm-usb/hdm_usb.c @@ -650,10 +650,8 @@ static int hdm_enqueue(struct most_interface *iface, int channel, return -ENODEV; urb = usb_alloc_urb(NO_ISOCHRONOUS_URB, GFP_ATOMIC); - if (!urb) { - dev_err(dev, "Failed to allocate URB\n"); + if (!urb) return -ENOMEM; - } anchor = kzalloc(sizeof(*anchor), GFP_ATOMIC); if (!anchor) { diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index dd0970facdf5..7af1af8c6616 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -1702,11 +1702,8 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) } if (bSend0Byte) { tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); - if (!tx_urb_zero) { - RT_TRACE(COMP_ERR, - "can't alloc urb for zero byte\n"); + if (!tx_urb_zero) return -ENOMEM; - } usb_fill_bulk_urb(tx_urb_zero, udev, usb_sndbulkpipe(udev, idx_pipe), &zero, 0, tx_zero_isr, dev); diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c index ac4fecb30d0e..0594828bdabf 100644 --- a/drivers/staging/vt6656/main_usb.c +++ b/drivers/staging/vt6656/main_usb.c @@ -440,10 +440,8 @@ static bool vnt_alloc_bufs(struct vnt_private *priv) /* allocate URBs */ tx_context->urb = usb_alloc_urb(0, GFP_KERNEL); - if (!tx_context->urb) { - dev_err(&priv->usb->dev, "alloc tx urb failed\n"); + if (!tx_context->urb) goto free_tx; - } tx_context->in_use = false; } @@ -462,10 +460,8 @@ static bool vnt_alloc_bufs(struct vnt_private *priv) /* allocate URBs */ rcb->urb = usb_alloc_urb(0, GFP_KERNEL); - if (!rcb->urb) { - dev_err(&priv->usb->dev, "Failed to alloc rx urb\n"); + if (!rcb->urb) goto free_rx_tx; - } rcb->skb = dev_alloc_skb(priv->rx_buf_sz); if (!rcb->skb) @@ -479,10 +475,8 @@ static bool vnt_alloc_bufs(struct vnt_private *priv) } priv->interrupt_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!priv->interrupt_urb) { - dev_err(&priv->usb->dev, "Failed to alloc int urb\n"); + if (!priv->interrupt_urb) goto free_rx_tx; - } priv->int_buf.data_buf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL); if (!priv->int_buf.data_buf) { |