search for: gfp_flag

...; --- fs/btrfs/disk-io.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index da4457f..4c86711 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -961,6 +961,13 @@ static int btree_releasepage(struct page *page, gfp_t gfp_flags) tree = &BTRFS_I(page->mapping->host)->io_tree; map = &BTRFS_I(page->mapping->host)->extent_tree; + /* + * We need to mask out eg. __GFP_HIGHMEM and __GFP_DMA32 as we''re doing + * slab allocation from alloc_extent_state down the callchain where + * it...

...ct ttm_pool_type global_dma32_uncached[MAX_ORDER + 1]; > static spinlock_t shrinker_lock; > static struct list_head shrinker_list; > static struct shrinker *mm_shrinker; > +static DECLARE_RWSEM(pool_shrink_rwsem); > > /* Allocate pages of size 1 << order with the given gfp_flags */ > static struct page *ttm_pool_alloc_page(struct ttm_pool *pool, gfp_t gfp_flags, > @@ -317,6 +318,7 @@ static unsigned int ttm_pool_shrink(void) > unsigned int num_pages; > struct page *p; > > + down_read(&pool_shrink_rwsem); > spin_lock(&shrinker_lock); &...

...&buf->attrs); + buf->attrs); put_device(buf->dev); kfree(buf); } @@ -153,14 +153,14 @@ static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size, buf->attrs = conf->attrs; buf->cookie = dma_alloc_attrs(dev, size, &buf->dma_addr, - GFP_KERNEL | gfp_flags, &buf->attrs); + GFP_KERNEL | gfp_flags, buf->attrs); if (!buf->cookie) { dev_err(dev, "dma_alloc_coherent of size %ld failed\n", size); kfree(buf); return ERR_PTR(-ENOMEM); } - if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, &buf->attrs)) + if (!dma_...

...all free_hot_cold_page( page->mapping = NULL; if (free_pages_check(page)) return; + page_set_unused(page, 0); kernel_map_pages(page, 1, 0); @@ -885,6 +887,7 @@ again: put_cpu(); VM_BUG_ON(bad_range(zone, page)); + page_set_stable(page, order); if (prep_new_page(page, order, gfp_flags)) goto again; return page;

...all free_hot_cold_page( page->mapping = NULL; if (free_pages_check(page)) return; + page_set_unused(page, 0); kernel_map_pages(page, 1, 0); @@ -885,6 +887,7 @@ again: put_cpu(); VM_BUG_ON(bad_range(zone, page)); + page_set_stable(page, order); if (prep_new_page(page, order, gfp_flags)) goto again; return page;

...e_buf_paddr; > +static void *bounce_buf_vaddr; > +static size_t bounce_buf_size; > +struct swiotlb_pool *virtio_pool; > + > +#define VIRTIO_MAX_BOUNCE_SIZE (16*4096) > + > +static void *virtio_alloc_coherent(struct device *dev, size_t size, > + dma_addr_t *dma_handle, gfp_t gfp_flags, unsigned long attrs) > +{ > + phys_addr_t addr; > + > + if (!virtio_pool) > + return NULL; > + > + addr = swiotlb_alloc(virtio_pool, size, bounce_buf_paddr, ULONG_MAX); > + if (addr == DMA_MAPPING_ERROR) > + return NULL; > + > + *dma_handle = (addr - bounce_buf_...

Hi all, With this series of patches, you can determine the owners of any type of I/Os. I ported the previous version to linux-2.6.26-rc2-mm1. This makes dm-ioband -- I/O bandwidth controller -- be able to control the Block I/O bandwidths even when it accepts delayed write requests. Dm-ioband can find the owner cgroup of each request. It is also possible that OpenVz team and NEC Uchida-san team

Hi all, With this series of patches, you can determine the owners of any type of I/Os. I ported the previous version to linux-2.6.26-rc2-mm1. This makes dm-ioband -- I/O bandwidth controller -- be able to control the Block I/O bandwidths even when it accepts delayed write requests. Dm-ioband can find the owner cgroup of each request. It is also possible that OpenVz team and NEC Uchida-san team

..._free_pages(struct page *page, unsigned long pfn, unsigned int order); extern void __free_pages_core(struct page *page, unsigned int order); -extern void prep_compound_page(struct page *page, unsigned int order); extern void post_alloc_hook(struct page *page, unsigned int order, gfp_t gfp_flags); extern int user_min_free_kbytes; diff --git a/mm/memory.c b/mm/memory.c index dc7f3543b1fd..4e03d1a2ead5 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4322,9 +4322,15 @@ static vm_fault_t __handle_mm_fault(struct vm_area_struct *vma, barrier(); if (unlikely(is_swap_pmd(orig_pmd))) { +...

Some graphics APIs differentiate between out-of-graphics-memory and out-of-host-memory (system memory). Add a device init flag to have -ENOSPC propagated from the resource managers instead of being converted to -ENOMEM, to aid driver stacks in determining what error code to return or whether corrective action can be taken at the driver level. The first patch deals with a ttm_device_init()

...page, unsigned long pfn, > unsigned int order); > extern void __free_pages_core(struct page *page, unsigned int order); > -extern void prep_compound_page(struct page *page, unsigned int order); > extern void post_alloc_hook(struct page *page, unsigned int order, > gfp_t gfp_flags); > extern int user_min_free_kbytes; > diff --git a/mm/memory.c b/mm/memory.c > index dc7f3543b1fd..4e03d1a2ead5 100644 > --- a/mm/memory.c > +++ b/mm/memory.c > @@ -4322,9 +4322,15 @@ static vm_fault_t __handle_mm_fault(struct vm_area_struct *vma, > > barrier(); >...

These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM self tests. Patch 7-8 prepare nouveau for the meat of this series which adds support and testing for compound page mapping of system memory (patches 9-11) and compound page migration to device private memory (patches 12-16). Since these changes are split

While testing raid-auto-repair patches I''m going to send out later, I just found the very last bug in my current scrub patch series: Changelog v4->v5: - fixed a deadlock when fixup is taking longer while scrub is about to end Original message follows: ------------------------ This patch set introduces two new features for scrub. They share the backref iteration code which is the

Hi all - The following 9 patches add more error handling to the btrfs code: - Add btrfs_panic - Catch locking failures in {set,clear}_extent_bit - Push up set_extent_bit errors to callers - Push up lock_extent errors to callers - Push up clear_extent_bit errors to callers - Push up unlock_extent errors to callers - Make pin_down_extent return void - Push up btrfs_pin_extent errors to

Hi, This set of patches contains initial kexec/kdump implementation for Xen v3. Currently only dom0 is supported, however, almost all infrustructure required for domU support is ready. Jan Beulich suggested to merge Xen x86 assembler code with baremetal x86 code. This could simplify and reduce a bit size of kernel code. However, this solution requires some changes in baremetal x86 code. First of

Hi, This set of patches contains initial kexec/kdump implementation for Xen v3. Currently only dom0 is supported, however, almost all infrustructure required for domU support is ready. Jan Beulich suggested to merge Xen x86 assembler code with baremetal x86 code. This could simplify and reduce a bit size of kernel code. However, this solution requires some changes in baremetal x86 code. First of

Hi, This set of patches contains initial kexec/kdump implementation for Xen v3. Currently only dom0 is supported, however, almost all infrustructure required for domU support is ready. Jan Beulich suggested to merge Xen x86 assembler code with baremetal x86 code. This could simplify and reduce a bit size of kernel code. However, this solution requires some changes in baremetal x86 code. First of

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic