https://github.com/torvalds/linux
Revision b0f2853b56a2acaff19cca2c6a608f8ec268d21a authored by Christoph Hellwig on 17 January 2018, 21:04:38 UTC, committed by Jens Axboe on 17 January 2018, 21:05:35 UTC
Some iommu implementations can merge physically and/or virtually
contiguous segments inside sg_map_dma. The NVMe SGL support does not take
this into account and will warn because of falling off a loop. Pass the
number of mapped segments to nvme_pci_setup_sgls so that the SGL setup
can take the number of mapped segments into account.
Reported-by: Fangjian (Turing) <f.fangjian@huawei.com>
Fixes: a7a7cbe3 ("nvme-pci: add SGL support")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@rimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 parent 20469a3
Tip revision: b0f2853b56a2acaff19cca2c6a608f8ec268d21a authored by Christoph Hellwig on 17 January 2018, 21:04:38 UTC
nvme-pci: take sglist coalescing in dma_map_sg into account
nvme-pci: take sglist coalescing in dma_map_sg into account
Tip revision: b0f2853
| File | Mode | Size |
|---|---|---|
| kasan | ||
| Kconfig | -rw-r--r-- | 25.1 KB |
| Kconfig.debug | -rw-r--r-- | 3.7 KB |
| Makefile | -rw-r--r-- | 3.6 KB |
| backing-dev.c | -rw-r--r-- | 27.3 KB |
| balloon_compaction.c | -rw-r--r-- | 5.5 KB |
| bootmem.c | -rw-r--r-- | 20.8 KB |
| cleancache.c | -rw-r--r-- | 9.9 KB |
| cma.c | -rw-r--r-- | 13.5 KB |
| cma.h | -rw-r--r-- | 573 bytes |
| cma_debug.c | -rw-r--r-- | 4.5 KB |
| compaction.c | -rw-r--r-- | 58.4 KB |
| debug.c | -rw-r--r-- | 4.1 KB |
| debug_page_ref.c | -rw-r--r-- | 1.4 KB |
| dmapool.c | -rw-r--r-- | 13.7 KB |
| early_ioremap.c | -rw-r--r-- | 6.8 KB |
| fadvise.c | -rw-r--r-- | 4.4 KB |
| failslab.c | -rw-r--r-- | 1.5 KB |
| filemap.c | -rw-r--r-- | 89.4 KB |
| frame_vector.c | -rw-r--r-- | 6.4 KB |
| frontswap.c | -rw-r--r-- | 14.3 KB |
| gup.c | -rw-r--r-- | 50.1 KB |
| gup_benchmark.c | -rw-r--r-- | 2.0 KB |
| highmem.c | -rw-r--r-- | 11.7 KB |
| hmm.c | -rw-r--r-- | 33.4 KB |
| huge_memory.c | -rw-r--r-- | 81.2 KB |
| hugetlb.c | -rw-r--r-- | 128.9 KB |
| hugetlb_cgroup.c | -rw-r--r-- | 10.9 KB |
| hwpoison-inject.c | -rw-r--r-- | 3.2 KB |
| init-mm.c | -rw-r--r-- | 716 bytes |
| internal.h | -rw-r--r-- | 16.7 KB |
| interval_tree.c | -rw-r--r-- | 3.2 KB |
| khugepaged.c | -rw-r--r-- | 48.5 KB |
| kmemcheck.c | -rw-r--r-- | 36 bytes |
| kmemleak-test.c | -rw-r--r-- | 3.2 KB |
| kmemleak.c | -rw-r--r-- | 58.6 KB |
| ksm.c | -rw-r--r-- | 85.9 KB |
| list_lru.c | -rw-r--r-- | 12.6 KB |
| maccess.c | -rw-r--r-- | 3.0 KB |
| madvise.c | -rw-r--r-- | 22.6 KB |
| memblock.c | -rw-r--r-- | 52.0 KB |
| memcontrol.c | -rw-r--r-- | 159.4 KB |
| memory-failure.c | -rw-r--r-- | 47.8 KB |
| memory.c | -rw-r--r-- | 125.5 KB |
| memory_hotplug.c | -rw-r--r-- | 48.9 KB |
| mempolicy.c | -rw-r--r-- | 69.4 KB |
| mempool.c | -rw-r--r-- | 14.0 KB |
| memtest.c | -rw-r--r-- | 2.8 KB |
| migrate.c | -rw-r--r-- | 77.1 KB |
| mincore.c | -rw-r--r-- | 6.7 KB |
| mlock.c | -rw-r--r-- | 22.4 KB |
| mm_init.c | -rw-r--r-- | 4.8 KB |
| mmap.c | -rw-r--r-- | 97.8 KB |
| mmu_context.c | -rw-r--r-- | 1.3 KB |
| mmu_notifier.c | -rw-r--r-- | 11.5 KB |
| mmzone.c | -rw-r--r-- | 2.4 KB |
| mprotect.c | -rw-r--r-- | 13.9 KB |
| mremap.c | -rw-r--r-- | 17.1 KB |
| msync.c | -rw-r--r-- | 2.6 KB |
| nobootmem.c | -rw-r--r-- | 10.7 KB |
| nommu.c | -rw-r--r-- | 48.5 KB |
| oom_kill.c | -rw-r--r-- | 29.7 KB |
| page-writeback.c | -rw-r--r-- | 84.3 KB |
| page_alloc.c | -rw-r--r-- | 214.1 KB |
| page_counter.c | -rw-r--r-- | 4.8 KB |
| page_ext.c | -rw-r--r-- | 11.0 KB |
| page_idle.c | -rw-r--r-- | 5.4 KB |
| page_io.c | -rw-r--r-- | 10.4 KB |
| page_isolation.c | -rw-r--r-- | 8.0 KB |
| page_owner.c | -rw-r--r-- | 15.3 KB |
| page_poison.c | -rw-r--r-- | 2.7 KB |
| page_vma_mapped.c | -rw-r--r-- | 6.3 KB |
| pagewalk.c | -rw-r--r-- | 8.5 KB |
| percpu-internal.h | -rw-r--r-- | 5.9 KB |
| percpu-km.c | -rw-r--r-- | 2.9 KB |
| percpu-stats.c | -rw-r--r-- | 5.9 KB |
| percpu-vm.c | -rw-r--r-- | 10.1 KB |
| percpu.c | -rw-r--r-- | 82.4 KB |
| pgtable-generic.c | -rw-r--r-- | 5.3 KB |
| process_vm_access.c | -rw-r--r-- | 10.1 KB |
| quicklist.c | -rw-r--r-- | 2.4 KB |
| readahead.c | -rw-r--r-- | 16.1 KB |
| rmap.c | -rw-r--r-- | 52.5 KB |
| rodata_test.c | -rw-r--r-- | 1.4 KB |
| shmem.c | -rw-r--r-- | 111.8 KB |
| slab.c | -rw-r--r-- | 109.9 KB |
| slab.h | -rw-r--r-- | 14.4 KB |
| slab_common.c | -rw-r--r-- | 35.5 KB |
| slob.c | -rw-r--r-- | 16.1 KB |
| slub.c | -rw-r--r-- | 141.3 KB |
| sparse-vmemmap.c | -rw-r--r-- | 8.4 KB |
| sparse.c | -rw-r--r-- | 23.0 KB |
| swap.c | -rw-r--r-- | 28.1 KB |
| swap_cgroup.c | -rw-r--r-- | 5.2 KB |
| swap_slots.c | -rw-r--r-- | 9.4 KB |
| swap_state.c | -rw-r--r-- | 21.6 KB |
| swapfile.c | -rw-r--r-- | 94.7 KB |
| truncate.c | -rw-r--r-- | 26.7 KB |
| usercopy.c | -rw-r--r-- | 7.5 KB |
| userfaultfd.c | -rw-r--r-- | 14.7 KB |
| util.c | -rw-r--r-- | 18.4 KB |
| vmacache.c | -rw-r--r-- | 3.2 KB |
| vmalloc.c | -rw-r--r-- | 70.2 KB |
| vmpressure.c | -rw-r--r-- | 14.3 KB |
| vmscan.c | -rw-r--r-- | 115.5 KB |
| vmstat.c | -rw-r--r-- | 52.6 KB |
| workingset.c | -rw-r--r-- | 18.1 KB |
| z3fold.c | -rw-r--r-- | 29.4 KB |
| zbud.c | -rw-r--r-- | 18.2 KB |
| zpool.c | -rw-r--r-- | 10.0 KB |
| zsmalloc.c | -rw-r--r-- | 59.4 KB |
| zswap.c | -rw-r--r-- | 32.8 KB |
Computing file changes ...
