Date: Wed, 13 Jun 2012 18:45:36 -0700 From: Xin Li <delphij@delphij.net> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-hackers@freebsd.org, d@delphij.net Subject: Re: BIO_DELETE equivalent for file on FFS filesystem Message-ID: <4FD94240.6060806@delphij.net> In-Reply-To: <alpine.BSF.2.00.1205261704590.70782@wojtek.tensor.gdynia.pl> References: <alpine.BSF.2.00.1205261704590.70782@wojtek.tensor.gdynia.pl>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 05/26/12 08:06, Wojciech Puchar wrote: > is it possible. suppose i have 1GB file with my data and 100 1 > megabyte parts of it is no longer needed. i could reorganize that > file to take 900MB or... can i call some system function to "punch" > holes? I think you can only truncate the file at this time, pretty much like brk() works for memory. Cheers, - -- Xin LI <delphij@delphij.net> https://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iQEcBAEBCAAGBQJP2UJAAAoJEG80Jeu8UPuzvaMH/Rb0IwPZV1xyapMoSv71FQPz 0yhAMLamNBEIRf2mvBZHp9ASLBRDYZsDtU+EAFelS56hBkuYywSb//m+cTeQpqT3 Wz5713DRtrpi6X7KrGCFmtpzhCiYyS11YLBGWIe6PjBFNdF+dveNGh5TPy4bKmVy j4cx+a3mHEdXOinayUzfPI1wpxF1eI/6cIiP0G5wy0VAApbk5qgE4PVlqZa8zKFF 4sePD6vsYTQ+3PVMwkfeJiX8E1ZMKAo/boD8Hw3jU24kY5n4bC+Qcqvm/JCFArGr QfA0K+TZ7R86lfs7yyjhmnf3fSBZVTOG4anYOAeOqgghORL43JhGjKZcDRw2CjM= =Y8H3 -----END PGP SIGNATURE-----
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