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file locks in 2.4.18

DISCUSSION Stephan von Krawczynski 2 participants 2 messages May 28, 2002 – May 29, 2002

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Hello,

what is the preferred way to increase the maximum number of locks per file in 2.4.18 (and above :-)? Is this fs-type-dependant? My concern is reiserfs 3.6. I found out the hard way that there is a max of around 128 currently...

Regards,
Stephan

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Hi Stephan,

Quoted 5 lines · On Tue, 28 May 2002 16:33:58 +0200 Stephan von Krawczynski <[email protected]>…

what is the preferred way to increase the maximum number of locks per file in 2.4.18 (and above :-)? Is this fs-type-dependant? My concern is reiserfs 3.6. I found out the hard way that there is a max of around 128 currently...

Are you referring to fcntl locks? If so what are the symptoms of not being able to get a lock? As far as I am aware, there should be no limit on the number of locks per file (except memory, of course). There is a per process limit on the number of file locks, but it is infinite by default.

The file system can place restrictions on file locking, but I am pretty sure that reiserfs does not.

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Cheers,
Stephen Rothwell                    [email protected]
http://www.canb.auug.org.au/~sfr/