Messages in this thread | | | From | "Ulrich Windl" <> | Date | Wed, 24 Apr 1996 09:56:50 +0200 | Subject | Re: MSDOS floppy disk seeks for FAT |
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On 23 Apr 96 at 18:41, J.J. Burgess wrote:
> To get the whole fat read in (i'm not to sure of the MSDOS fat format) > couldn't the fs/fat/buffer.c fat_read() code be changed from using bread > to breada ? (with the size equal to that of the first track, especially > if the floppy driver has this in its DMA buffer)
If it were only for the FAT, reading with breada() for the size of the fat would be OK. But the problem is not related to the MSDOS/FAT filesystem; it's a generic problem of slow access. Even access to CD-ROM would benefit (Maybe CD tracks are a bit large, though)
> > Assuming all FAT reads go through this interface, which it looks like > given the name of the function. > > .. . . . . . . . . . . . . . .. > :: : : Jon Burgess 01223-461907 : : :: > :: : jjb1003@cam.ac.uk : : ::
Ulrich
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