Re: [PATCH 2/2] pipe.7: Add reference that the pipe capacity can be changed.

["Michael Kerrisk (man-pages)" <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On 07/07/2014 01:55 PM, walter harms wrote:
> 
> 
> Am 06.07.2014 15:44, schrieb Elie De Brauwer:
>> In fcntl(2) F_SETPIPE_SZ, F_GETPIPE_SZ and /proc/sys/fs/pipe-max-size are
>> defined, however pipe(7) still defines the pipe capacity as being a static
>> entity. Adding a reference to fcntl(2).
>>
>> Signed-off-by: Elie De Brauwer <eliedebrauwer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> ---
>>  man7/pipe.7 | 10 ++++++++++
>>  1 file changed, 10 insertions(+)
>>
>> diff --git a/man7/pipe.7 b/man7/pipe.7
>> index 78d1cea..64a6761 100644
>> --- a/man7/pipe.7
>> +++ b/man7/pipe.7
>> @@ -133,6 +133,16 @@ so that a writing process does not remain blocked.
>>  In Linux versions before 2.6.11, the capacity of a pipe was the same as
>>  the system page size (e.g., 4096 bytes on i386).
>>  Since Linux 2.6.11, the pipe capacity is 65536 bytes.
>> +Since Linux 2.6.35, the pipe capacity can be queried and set using the
>> +.BR fcntl (2)
>> +.BR F_GETPIPE_SZ
>> +and
>> +.BR F_SETPIPE_SZ
>> +operations.
>> +See
>> +.BR fcntl (2)
>> +for more information.
>> +
> 
> Could to add a line like:
> "the default pipe capacity is still 65536 bytes." ? (or what ever)

Yup, seems worthwhile. Added. Thanks, Walter.

Cheers,

Michael
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