Messages in this thread | | | Date | Thu, 3 Oct 2002 22:26:21 -0700 (PDT) | From | "Randy.Dunlap" <> | Subject | Re: FAT/VFAT and the sync flag |
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On 3 Oct 2002, Scott Bronson wrote:
| Can anyone tell me if the VFAT filesystem actually recognizes the sync | flag? Early in 2.4, it appeared that it was ignoring it. | | However, now that a lot of USB devices are VFAT, this gets pretty | important. | -
USB devices (mostly) don't care what filesystem is on them. I have used ext2 on USB floppies and USB Zip. You should be able to put any supported filesystem on them. The only case I know of that matters is MP3 players, which do expect/require a VFAT filesystem (it's usually all they know), so media that is used in MP3 players should be VFAT probably. :)
Now, for you first question, I hope that Ogawa or Al or Christoph et al can answer it, but my guess is, No, VFAT doesn't recognize the sync flag. I base that on grepping for s_sync and for MS_SYNCHRONOUS in linux/fs/{fat,vfat,msdos} and finding s_sync a few times, but not finding MS_SYNCHRONOUS at all.
'man mount' says that the sync flag is only honored by ext2, ext3, and ufs. I see it checked/used in ext2, ufs, and ntfs.
-- ~Randy
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