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optimize errno calls. 

Signed-off-by: Michal Mrozek <michal.mrozek@intel.com>
This commit is contained in:
Michal Mrozek 2021-05-12 15:09:01 +00:00 committed by Compute-Runtime-Automation
parent fcbf1dcf32
commit 00db4dd3f0
1 changed files with 5 additions and 2 deletions
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7
shared/source/os_interface/linux/drm_neo.cpp
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@ -67,6 +67,7 @@ Drm::Drm(std::unique_ptr<HwDeviceId> hwDeviceIdIn, RootDeviceEnvironment &rootDe
int Drm::ioctl(unsigned long request, void *arg) {
int ret;
int returnedErrno;
SYSTEM_ENTER();
do {
auto measureTime = DebugManager.flags.PrintIoctlTimes.get();
@ -85,8 +86,10 @@ int Drm::ioctl(unsigned long request, void *arg) {
ret = SysCalls::ioctl(getFileDescriptor(), request, arg);
returnedErrno = errno;
if (printIoctl) {
printf("IOCTL %s returns %d, errno %d\n", this->ioctlToString(request).c_str(), ret, errno);
printf("IOCTL %s returns %d, errno %d\n", this->ioctlToString(request).c_str(), ret, returnedErrno);
}
if (measureTime) {
@ -104,7 +107,7 @@ int Drm::ioctl(unsigned long request, void *arg) {
this->ioctlStatistics[request] = ioctlData;
}
} while (ret == -1 && (errno == EINTR || errno == EAGAIN || errno == EBUSY));
} while (ret == -1 && (returnedErrno == EINTR || returnedErrno == EAGAIN || returnedErrno == EBUSY));
SYSTEM_LEAVE(request);
return ret;
}