Messages in this thread |  | | Date | Mon, 21 May 2001 18:47:58 +0100 | From | "Stephen C. Tweedie" <> |
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Hi,
On Sun, May 13, 2001 at 12:53:37AM +1000, Andrew McNamara wrote:
> I seem to recall that in 2.2, fsync behaved like fdatasync, and that > it's only in 2.4 that it also syncs metadata - is this correct?
No, fsync should be safe on 2.2. There was a problem with O_SYNC not syncing all metadata on 2.2 if you were extending a file, but that never applied to fsync.
> Do the BSD's sync the directory data on an fsync of a file? I guess > this is the bone of contention
No --- the old BSDs were safe because their directory operations were fully synchronous so they *never* needed to be sync'ed manually. According to SuS, an application relying on sync directory updates is buggy, because SuS simply makes no such guarantees.
Just set chattr +S on the spool dir. That's what the flag is for. The biggest problem with that is that it propagates to subdirectories and files --- would a version of the flag which applied only to directories be a help here?
Cheers, Stephen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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