lkl tools: support multiple copy sources in cptofs #298
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Signed-off-by: Dan Peebles <[email protected]>
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Can one of the admins verify this patch? |
tavip
approved these changes
Jan 17, 2017
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@lkl-jenkins: test this please |
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Thanks for the quick reviews! |
Myriad-Dreamin
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this pull request
Aug 9, 2022
with the following tdc testcase: 83be: (qdisc, fq_pie) Create FQ-PIE with invalid number of flows as fq_pie_init() fails, fq_pie_destroy() is called to clean up. Since the timer is not yet initialized, it's possible to observe a splat like this: INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 975 Comm: tc Not tainted 5.10.0-rc4+ lkl#298 Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014 Call Trace: dump_stack+0x99/0xcb register_lock_class+0x12dd/0x1750 __lock_acquire+0xfe/0x3970 lock_acquire+0x1c8/0x7f0 del_timer_sync+0x49/0xd0 fq_pie_destroy+0x3f/0x80 [sch_fq_pie] qdisc_create+0x916/0x1160 tc_modify_qdisc+0x3c4/0x1630 rtnetlink_rcv_msg+0x346/0x8e0 netlink_unicast+0x439/0x630 netlink_sendmsg+0x719/0xbf0 sock_sendmsg+0xe2/0x110 ____sys_sendmsg+0x5ba/0x890 ___sys_sendmsg+0xe9/0x160 __sys_sendmsg+0xd3/0x170 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 [...] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 0 PID: 975 at lib/debugobjects.c:508 debug_print_object+0x162/0x210 [...] Call Trace: debug_object_assert_init+0x268/0x380 try_to_del_timer_sync+0x6a/0x100 del_timer_sync+0x9e/0xd0 fq_pie_destroy+0x3f/0x80 [sch_fq_pie] qdisc_create+0x916/0x1160 tc_modify_qdisc+0x3c4/0x1630 rtnetlink_rcv_msg+0x346/0x8e0 netlink_rcv_skb+0x120/0x380 netlink_unicast+0x439/0x630 netlink_sendmsg+0x719/0xbf0 sock_sendmsg+0xe2/0x110 ____sys_sendmsg+0x5ba/0x890 ___sys_sendmsg+0xe9/0x160 __sys_sendmsg+0xd3/0x170 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 fix it moving timer_setup() before any failure, like it was done on 'red' with former commit 608b4ad ("net_sched: initialize timer earlier in red_init()"). Fixes: ec97ecf ("net: sched: add Flow Queue PIE packet scheduler") Signed-off-by: Davide Caratti <[email protected]> Reviewed-by: Cong Wang <[email protected]> Link: https://lore.kernel.org/r/2e78e01c504c633ebdff18d041833cf2e079a3a4.1607020450.git.dcaratti@redhat.com Signed-off-by: Jakub Kicinski <[email protected]>
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This should address #296. I wasn't quite sure how best to represent the multiplicity of arguments in the usage documentation.
Also, I almost want to be able to group
(src*, dest)pairs. So I can say "copy source X, Y, Z to dest A, and copy source P, Q, R to dest B" in one go. I wasn't sure how best to design the command-line interface to do that though. Code-wise it should be pretty easy if we can figure that out, but this does some of the job.Edit: perhaps it might make sense to have
cptofsaccept a simple file of instructions (some trivially parseable format) that tells it what to copy where. Either way, that's work for another PR.This change is