Date: Fri, 13 Jul 2007 20:00:58 -0500 From: "Ben Kaduk" <minimarmot@gmail.com> To: "Bruce Evans" <bde@freebsd.org> Cc: cvs-src@freebsd.org, src-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/fs/msdosfs msdosfs_vfsops.c Message-ID: <47d0403c0707131800h571bfb97ydf12f313b7fd68a1@mail.gmail.com> In-Reply-To: <200707121717.l6CHHl2w076935@repoman.freebsd.org> References: <200707121717.l6CHHl2w076935@repoman.freebsd.org>
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Hi Bruce, On 7/12/07, Bruce Evans <bde@freebsd.org> wrote: > bde 2007-07-12 17:17:47 UTC > > FreeBSD src repository > > Modified files: > sys/fs/msdosfs msdosfs_vfsops.c > Log: > Round up the FAT block size to a multiple of the sector size so that i/o > to the FAT is possible. > > Make the FAT block size less arbitrary before it is rounded up: > - for FAT12, default to 3*512 instead of to 3 sectors. The magic 3 is > the default number of 512-byte FAT sectors on a floppy drive. That > many sectors is too many if the sector size is larger. > - for !FAT12, default to PAGE_SIZE instead of to 4096. Remove > MSDOSFS_DFLTBSIZE since it only obfuscated this 4096. > [snip] I recently got a patch committed to the installation chapter of the handbook, which included two occasions of clarifying ``MS-DOS filesystem'' as ``FAT16 or FAT32'' [1,2 for present incarnation]. I am too young to remember the existence of FAT12, so I'll have to defer to others as to whether the handbook should mention FAT12 in the same breath as FAT16 and FAT32. What do you think? Thanks, Ben Kaduk [1] http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/install-pre.html [2] http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/install-trouble.html
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