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Kernel: Remove SmapDisabler in sys$clock_gettime()

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This commit is contained in:
Andreas Kling 2020-02-16 08:13:11 +01:00
parent 7533d61458
commit 7717084ac7
Notes: sideshowbarker 2024-07-19 09:16:59 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/7717084ac78
1 changed files with 8 additions and 5 deletions
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13
Kernel/Process.cpp
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@ -4183,22 +4183,25 @@ int Process::sys$setkeymap(const Syscall::SC_setkeymap_params* user_params)
return 0;
}
int Process::sys$clock_gettime(clockid_t clock_id, timespec* ts)
int Process::sys$clock_gettime(clockid_t clock_id, timespec* user_ts)
{
REQUIRE_PROMISE(stdio);
if (!validate_write_typed(ts))
if (!validate_write_typed(user_ts))
return -EFAULT;
SmapDisabler disabler;
timespec ts;
memset(&ts, 0, sizeof(ts));
switch (clock_id) {
case CLOCK_MONOTONIC:
ts->tv_sec = g_uptime / TICKS_PER_SECOND;
ts->tv_nsec = (g_uptime % TICKS_PER_SECOND) * 1000000;
ts.tv_sec = g_uptime / TICKS_PER_SECOND;
ts.tv_nsec = (g_uptime % TICKS_PER_SECOND) * 1000000;
break;
default:
return -EINVAL;
}
copy_to_user(user_ts, &ts);
return 0;
}