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Re: [PATCH] Use dev_t for device id (st_dev) from stat in setup_git_directory_gently()

From
Raja R Harinath <harinath@hurrynot.org>
Date
Jul 14, 2010, 01:08 UTC
Message-ID
<878w5elvk2.fsf@hariville.hurrynot.org>
In-Reply-To
<7voceb2jaw.fsf@alter.siamese.dyndns.org>
Hi,
Junio C Hamano <gitster@pobox.com> writes:
Show 22 quoted lines
> Raja R Harinath <harinath@hurrynot.org> writes:
>
>> The original declaration was int, which seems to cause trouble on my
>> machine.  It causes spurious "filesystem boundary" errors when running
>> the testsuite.  The cause seems to be
>>
>>   $ stat -c%d .
>>   2147549952
>>
>> which is too large for a 32-bit int type.
>>
>> Using the correct type, dev_t, solves the issue.  (Because I'm
>> paranoid and forgetful, I checked -- yes, Unix v7 had dev_t.)
>>
>> Other uses of st_dev seem to be reasonably safe.   fill_stat_cache_info
>> truncates it to an 'unsigned int', but that value seems to be used only
>> to validate the cache, and only if USE_STDEV is defined.
>> ---
>
> Makes sense; thanks.
>
> Sign-off?
Signed-off-by: Raja R Harinath <harinath@hurrynot.org>
Do I need to resend?
Show 19 quoted lines
>>  setup.c |    3 ++-
>>  1 files changed, 2 insertions(+), 1 deletions(-)
>>
>> diff --git a/setup.c b/setup.c
>> index 7e04602..87c21f0 100644
>> --- a/setup.c
>> +++ b/setup.c
>> @@ -323,7 +323,8 @@ const char *setup_git_directory_gently(int *nongit_ok)
>>  	const char *gitdirenv;
>>  	const char *gitfile_dir;
>>  	int len, offset, ceil_offset, root_len;
>> -	int current_device = 0, one_filesystem = 1;
>> +	dev_t current_device = 0;
>> +	int one_filesystem = 1;
>>  	struct stat buf;
>>  
>>  	/*
>> -- 
>> 1.7.2.rc2.11.g03e33
Previous: Junio C HamanoNext: Junio C Hamano
Message 5 of 6 in “Use dev_t for device id (st_dev) from stat in setup_git_directory_gently()”
  1. Use dev_t for device id (st_dev) from stat in setup_git_directory_gently()Raja R Harinath, Jul 13, 2010
  2. Ævar Arnfjörð BjarmasonJul 13, 2010
  3. Raja R HarinathJul 13, 2010
  4. Junio C HamanoJul 13, 2010
  5. Raja R HarinathJul 14, 2010
  6. Junio C HamanoJul 14, 2010

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