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settid(): prevent modifying tid after thread migration

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This commit is contained in:
Balazs Gerofi
2015-07-23 16:51:24 +09:00
parent bbe7aef95b
commit 54eb345847
1 changed files with 3 additions and 1 deletions
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4
kernel/syscall.c
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@@ -1474,7 +1474,9 @@ settid(struct process *proc, int mode, int newcpuid, int oldcpuid)
ihk_mc_syscall_arg2(&ctx) = newcpuid; ihk_mc_syscall_arg2(&ctx) = newcpuid;
ihk_mc_syscall_arg3(&ctx) = oldcpuid; ihk_mc_syscall_arg3(&ctx) = oldcpuid;
rc = syscall_generic_forwarding(__NR_gettid, &ctx); rc = syscall_generic_forwarding(__NR_gettid, &ctx);
proc->ftn->tid = rc; if (mode != 2) {
proc->ftn->tid = rc;
}
} }
SYSCALL_DECLARE(gettid) SYSCALL_DECLARE(gettid)