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Traditional interface is zero-fillingTraditional interface is zero-fillingPosted Nov 29, 2010 1:04 UTC (Mon) by nybble41 (subscriber, #55106)In reply to: Traditional interface is zero-filling by kolk Parent article: Punching holes in files
Sometimes you can't use sparse files. For example, swap files need to have all blocks allocated, even if those blocks happen to contain only zeroes. Also, a program may wish to fully allocate a file to ensure that later writes will be able to succeed without running out of disk space, which could happen if sparse blocks were overwritten with non-zero data.
So a separate interface is required after all.
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Traditional interface is zero-filling Posted Nov 29, 2010 12:17 UTC (Mon) by mfedyk (guest, #55303) [Link]
maybe you can write ones instead if you don't want the blocks deallocated
Traditional interface is zero-filling Posted Dec 29, 2010 15:33 UTC (Wed) by yoe (subscriber, #25743) [Link]
That would be a horrible, horrible hack.
Traditional interface is zero-filling Posted Jan 20, 2011 2:22 UTC (Thu) by jzbiciak (✭ supporter ✭, #5246) [Link]
And here's hoping you never swap a page full of zeros by accident...
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