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mem: add dump state of THP_DISABLED prctl

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Acked-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This commit is contained in:
Mike Rapoport
2017-06-28 09:43:26 +03:00
committed by Andrei Vagin
parent 5480a2a406
commit bbbd597b41
4 changed files with 6 additions and 0 deletions
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3
criu/cr-dump.c
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@@ -515,6 +515,9 @@ static int dump_task_mm(pid_t pid, const struct proc_pid_stat *stat,
mme.dumpable = misc->dumpable;
mme.has_dumpable = true;
mme.thp_disabled = misc->thp_disabled;
mme.has_thp_disabled = true;
mme.n_mm_saved_auxv = AT_VECTOR_SIZE;
mme.mm_saved_auxv = xmalloc(pb_repeated_size(&mme, mm_saved_auxv));
if (!mme.mm_saved_auxv)

1
criu/include/parasite.h
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@@ -124,6 +124,7 @@ struct parasite_dump_misc {
u32 umask;
int dumpable;
int thp_disabled;
};
/*

1
criu/pie/parasite.c
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@@ -177,6 +177,7 @@ static int dump_misc(struct parasite_dump_misc *args)
args->umask = sys_umask(0);
sys_umask(args->umask); /* never fails */
args->dumpable = sys_prctl(PR_GET_DUMPABLE, 0, 0, 0, 0);
args->thp_disabled = sys_prctl(PR_GET_THP_DISABLE, 0, 0, 0, 0);
return 0;
}

1
images/mm.proto
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@@ -29,4 +29,5 @@ message mm_entry {
optional int32 dumpable = 15;
repeated aio_ring_entry aios = 16;
optional bool thp_disabled = 17;
}