search for: out_free_src

...int ret = -ENOMEM; - args.src = kzalloc(sizeof(long) * max, GFP_KERNEL); + args.src = kcalloc(max, sizeof(args.src), GFP_KERNEL); if (!args.src) goto out; - args.dst = kzalloc(sizeof(long) * max, GFP_KERNEL); + args.dst = kcalloc(max, sizeof(args.dst), GFP_KERNEL); if (!args.dst) goto out_free_src; + dma_addrs = kmalloc_array(max, sizeof(*dma_addrs), GFP_KERNEL); + if (!dma_addrs) + goto out_free_dst; + for (i = 0; i < npages; i += c) { c = min(SG_MAX_SINGLE_ALLOC, npages); args.end = start + (c << PAGE_SHIFT); ret = migrate_vma_setup(&args); if (ret) - goto o...

...t = -ENOMEM; - args.src = kcalloc(max, sizeof(args.src), GFP_KERNEL); + args.src = kcalloc(max, sizeof(*args.src), GFP_KERNEL); if (!args.src) goto out; - args.dst = kcalloc(max, sizeof(args.dst), GFP_KERNEL); + args.dst = kcalloc(max, sizeof(*args.dst), GFP_KERNEL); if (!args.dst) goto out_free_src; -- 2.24.0

...t = -ENOMEM; - args.src = kcalloc(max, sizeof(args.src), GFP_KERNEL); + args.src = kcalloc(max, sizeof(*args.src), GFP_KERNEL); if (!args.src) goto out; - args.dst = kcalloc(max, sizeof(args.dst), GFP_KERNEL); + args.dst = kcalloc(max, sizeof(*args.dst), GFP_KERNEL); if (!args.dst) goto out_free_src; -- 2.20.1

...t = -ENOMEM; - args.src = kcalloc(max, sizeof(args.src), GFP_KERNEL); + args.src = kcalloc(max, sizeof(*args.src), GFP_KERNEL); if (!args.src) goto out; - args.dst = kcalloc(max, sizeof(args.dst), GFP_KERNEL); + args.dst = kcalloc(max, sizeof(*args.dst), GFP_KERNEL); if (!args.dst) goto out_free_src; -- 2.20.1

...r, if (!mmget_not_zero(mm)) return -EINVAL; + src_pfns = kmalloc_array(PTRS_PER_PTE, sizeof(*src_pfns), GFP_KERNEL); + if (!src_pfns) { + ret = -ENOMEM; + goto out_put; + } + dst_pfns = kmalloc_array(PTRS_PER_PTE, sizeof(*dst_pfns), GFP_KERNEL); + if (!dst_pfns) { + ret = -ENOMEM; + goto out_free_src; + } + mmap_read_lock(mm); for (addr = start; addr < end; addr = next) { vma = find_vma(mm, addr); @@ -706,7 +832,7 @@ static int dmirror_migrate(struct dmirror *dmirror, ret = -EINVAL; goto out; } - next = min(end, addr + (ARRAY_SIZE(src_pfns) << PAGE_SHIFT)); + next =...

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 4 files changed, 285 insertions(+), 602 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 7 files changed, 282 insertions(+), 614 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 5 files changed, 281 insertions(+), 607 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git

...ruct nouveau_migrate migrate = { + .drm = drm, + .vma = vma, + .npages = npages, + }; + unsigned long c, i; + int ret = -ENOMEM; + + args.src = kzalloc(sizeof(long) * max, GFP_KERNEL); + if (!args.src) + goto out; + args.dst = kzalloc(sizeof(long) * max, GFP_KERNEL); + if (!args.dst) + goto out_free_src; - migrate.drm = drm; - migrate.vma = vma; - migrate.npages = npages; for (i = 0; i < npages; i += c) { - unsigned long next; - c = min(SG_MAX_SINGLE_ALLOC, npages); - next = start + (c << PAGE_SHIFT); - ret = migrate_vma(&nouveau_dmem_migrate_ops, vma, start, - next, sr...

...ruct nouveau_migrate migrate = { + .drm = drm, + .vma = vma, + .npages = npages, + }; + unsigned long c, i; + int ret = -ENOMEM; + + args.src = kzalloc(sizeof(long) * max, GFP_KERNEL); + if (!args.src) + goto out; + args.dst = kzalloc(sizeof(long) * max, GFP_KERNEL); + if (!args.dst) + goto out_free_src; - migrate.drm = drm; - migrate.vma = vma; - migrate.npages = npages; for (i = 0; i < npages; i += c) { - unsigned long next; - c = min(SG_MAX_SINGLE_ALLOC, npages); - next = start + (c << PAGE_SHIFT); - ret = migrate_vma(&nouveau_dmem_migrate_ops, vma, start, - next, sr...

...a = vma, > + .npages = npages, > + }; > + unsigned long c, i; > + int ret = -ENOMEM; > + > + args.src = kzalloc(sizeof(long) * max, GFP_KERNEL); > + if (!args.src) > + goto out; > + args.dst = kzalloc(sizeof(long) * max, GFP_KERNEL); > + if (!args.dst) > + goto out_free_src; > > - migrate.drm = drm; > - migrate.vma = vma; > - migrate.npages = npages; > for (i = 0; i < npages; i += c) { > - unsigned long next; > - > c = min(SG_MAX_SINGLE_ALLOC, npages); > - next = start + (c << PAGE_SHIFT); > - ret = migrate_vma(&...

This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. Earlier versions were posted previously [1] and [2]. The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a lot of other THP patches being posted. I don't think there are any semantic conflicts but there may be some merge conflicts depending on

This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. An earlier version was posted previously [1]. This version now supports splitting a THP midway in the migration process which led to a number of changes. The patches apply cleanly to the current linux-mm tree. Since there are a couple of patches in linux-mm from Dan

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