tequilaOS/platform_system_vold
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge "Retry opening loop device"

Browse source
This commit is contained in:
Daniel Rosenberg 2019-04-02 20:28:44 +00:00 committed by Gerrit Code Review
commit c8f5cbb5b1
1 changed files with 9 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
Loop.cpp
View file

@ -45,6 +45,7 @@ using android::base::StringPrintf;
using android::base::unique_fd;
static const char* kVoldPrefix = "vold:";
static constexpr size_t kLoopDeviceRetryAttempts = 3u;
int Loop::create(const std::string& target, std::string& out_device) {
unique_fd ctl_fd(open("/dev/loop-control", O_RDWR | O_CLOEXEC));
@ -61,7 +62,14 @@ int Loop::create(const std::string& target, std::string& out_device) {
out_device = StringPrintf("/dev/block/loop%d", num);
unique_fd target_fd(open(target.c_str(), O_RDWR | O_CLOEXEC));
unique_fd target_fd;
for (size_t i = 0; i != kLoopDeviceRetryAttempts; ++i) {
target_fd.reset(open(target.c_str(), O_RDWR | O_CLOEXEC));
if (target_fd.get() != -1) {
break;
}
usleep(50000);
}
if (target_fd.get() == -1) {
PLOG(ERROR) << "Failed to open " << target;
return -errno;