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 |
|---|---|---|
| bpf | ||
| cgroup | ||
| configs | ||
| debug | ||
| events | ||
| gcov | ||
| irq | ||
| livepatch | ||
| locking | ||
| power | ||
| printk | ||
| rcu | ||
| sched | ||
| time | ||
| trace | ||
| .gitignore | -rw-r--r-- | 69 bytes |
| Kconfig.freezer | -rw-r--r-- | 52 bytes |
| Kconfig.hz | -rw-r--r-- | 1.6 KB |
| Kconfig.locks | -rw-r--r-- | 4.8 KB |
| Kconfig.preempt | -rw-r--r-- | 2.1 KB |
| Makefile | -rw-r--r-- | 4.0 KB |
| acct.c | -rw-r--r-- | 15.4 KB |
| async.c | -rw-r--r-- | 9.9 KB |
| audit.c | -rw-r--r-- | 61.6 KB |
| audit.h | -rw-r--r-- | 11.0 KB |
| audit_fsnotify.c | -rw-r--r-- | 6.1 KB |
| audit_tree.c | -rw-r--r-- | 23.9 KB |
| audit_watch.c | -rw-r--r-- | 14.6 KB |
| auditfilter.c | -rw-r--r-- | 34.3 KB |
| auditsc.c | -rw-r--r-- | 66.0 KB |
| backtracetest.c | -rw-r--r-- | 2.1 KB |
| bounds.c | -rw-r--r-- | 739 bytes |
| capability.c | -rw-r--r-- | 13.9 KB |
| compat.c | -rw-r--r-- | 15.7 KB |
| configs.c | -rw-r--r-- | 2.8 KB |
| context_tracking.c | -rw-r--r-- | 6.3 KB |
| cpu.c | -rw-r--r-- | 48.1 KB |
| cpu_pm.c | -rw-r--r-- | 6.0 KB |
| crash_core.c | -rw-r--r-- | 11.3 KB |
| crash_dump.c | -rw-r--r-- | 1.3 KB |
| cred.c | -rw-r--r-- | 21.5 KB |
| delayacct.c | -rw-r--r-- | 4.5 KB |
| dma.c | -rw-r--r-- | 3.6 KB |
| elfcore.c | -rw-r--r-- | 432 bytes |
| exec_domain.c | -rw-r--r-- | 1.4 KB |
| exit.c | -rw-r--r-- | 44.2 KB |
| extable.c | -rw-r--r-- | 4.8 KB |
| fork.c | -rw-r--r-- | 59.0 KB |
| freezer.c | -rw-r--r-- | 4.4 KB |
| futex.c | -rw-r--r-- | 96.5 KB |
| futex_compat.c | -rw-r--r-- | 4.5 KB |
| groups.c | -rw-r--r-- | 4.9 KB |
| hung_task.c | -rw-r--r-- | 6.2 KB |
| irq_work.c | -rw-r--r-- | 4.4 KB |
| jump_label.c | -rw-r--r-- | 19.2 KB |
| kallsyms.c | -rw-r--r-- | 18.0 KB |
| kcmp.c | -rw-r--r-- | 5.7 KB |
| kcov.c | -rw-r--r-- | 10.5 KB |
| kexec.c | -rw-r--r-- | 7.0 KB |
| kexec_core.c | -rw-r--r-- | 30.8 KB |
| kexec_file.c | -rw-r--r-- | 25.4 KB |
| kexec_internal.h | -rw-r--r-- | 924 bytes |
| kmod.c | -rw-r--r-- | 5.0 KB |
| kprobes.c | -rw-r--r-- | 62.8 KB |
| ksysfs.c | -rw-r--r-- | 6.3 KB |
| kthread.c | -rw-r--r-- | 33.3 KB |
| latencytop.c | -rw-r--r-- | 7.9 KB |
| memremap.c | -rw-r--r-- | 15.0 KB |
| module-internal.h | -rw-r--r-- | 458 bytes |
| module.c | -rw-r--r-- | 111.1 KB |
| module_signing.c | -rw-r--r-- | 2.2 KB |
| notifier.c | -rw-r--r-- | 16.3 KB |
| nsproxy.c | -rw-r--r-- | 6.5 KB |
| padata.c | -rw-r--r-- | 27.1 KB |
| panic.c | -rw-r--r-- | 17.0 KB |
| params.c | -rw-r--r-- | 23.2 KB |
| pid.c | -rw-r--r-- | 10.6 KB |
| pid_namespace.c | -rw-r--r-- | 11.6 KB |
| profile.c | -rw-r--r-- | 14.8 KB |
| ptrace.c | -rw-r--r-- | 32.6 KB |
| range.c | -rw-r--r-- | 3.0 KB |
| reboot.c | -rw-r--r-- | 13.8 KB |
| relay.c | -rw-r--r-- | 32.1 KB |
| resource.c | -rw-r--r-- | 39.8 KB |
| seccomp.c | -rw-r--r-- | 31.4 KB |
| signal.c | -rw-r--r-- | 95.8 KB |
| smp.c | -rw-r--r-- | 21.3 KB |
| smpboot.c | -rw-r--r-- | 13.1 KB |
| smpboot.h | -rw-r--r-- | 640 bytes |
| softirq.c | -rw-r--r-- | 18.8 KB |
| stacktrace.c | -rw-r--r-- | 1.8 KB |
| stop_machine.c | -rw-r--r-- | 17.1 KB |
| sys.c | -rw-r--r-- | 60.6 KB |
| sys_ni.c | -rw-r--r-- | 7.3 KB |
| sysctl.c | -rw-r--r-- | 74.1 KB |
| sysctl_binary.c | -rw-r--r-- | 51.0 KB |
| task_work.c | -rw-r--r-- | 3.1 KB |
| taskstats.c | -rw-r--r-- | 15.4 KB |
| test_kprobes.c | -rw-r--r-- | 7.9 KB |
| torture.c | -rw-r--r-- | 21.0 KB |
| tracepoint.c | -rw-r--r-- | 14.6 KB |
| tsacct.c | -rw-r--r-- | 5.1 KB |
| ucount.c | -rw-r--r-- | 5.7 KB |
| uid16.c | -rw-r--r-- | 5.0 KB |
| umh.c | -rw-r--r-- | 15.2 KB |
| up.c | -rw-r--r-- | 2.0 KB |
| user-return-notifier.c | -rw-r--r-- | 1.3 KB |
| user.c | -rw-r--r-- | 5.4 KB |
| user_namespace.c | -rw-r--r-- | 33.3 KB |
| utsname.c | -rw-r--r-- | 3.6 KB |
| utsname_sysctl.c | -rw-r--r-- | 3.0 KB |
| watchdog.c | -rw-r--r-- | 21.7 KB |
| watchdog_hld.c | -rw-r--r-- | 7.7 KB |
| workqueue.c | -rw-r--r-- | 156.0 KB |
| workqueue_internal.h | -rw-r--r-- | 2.3 KB |
Computing file changes ...
