Hi,
On 05/06/2014 04:54 PM, Shuang Qiu wrote:
> Hello,
> On 02/25/2014 02:26 PM, Zeng Linggang wrote:
>> +
>> + SAFE_TOUCH(cleanup, TEST_EMLINK, 0666, NULL);
>> +
>> + while (1) {
>> + sprintf(lname, "%s%ld", BASENAME, ++link_max);
>> + TEST(link(TEST_EMLINK, lname));
>> + if (TEST_RETURN == -1) {
>> + switch (TEST_ERRNO) {
>> + case EMLINK:
>> + tst_resm(TINFO, "for %s the max links is %ld",
>> + fstype, link_max);
>> + break;
>> + default:
>> + tst_brkm(TBROK | TTERRNO, cleanup,
>> + "Unexpected error: ");
>> + break;
>> + }
>> + break;
>> + }
>> + }
>> +}
>>
> Should it give a limit max number here when test EMLINK to handler the
> filesystems which unlimited link count.
> AFAIK,it use 2^31 - 1 with xfs:
> /*
> * The 32 bit link count in the inode theoretically maxes out at UINT_MAX.
> * Since the pathconf interface is signed, we use 2^31 - 1 instead.
> * The old inode format had a 16 bit link count, so its maximum is
> USHRT_MAX.
> */
> #define XFS_MAXLINK ((1U << 31) - 1U)
> #define XFS_MAXLINK_1 65535U
>
> We are not able to reach such limitation.
Yeah, I think so.
Or we should make the file system hard coded to ext2/3/4.
Regards,
Xiaoguang Wang
>
> Thanks
> Shuang
>
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