In general, MTA's like (qmail/postfix) and their authors assume the
BSD ffs/softupdates semantics that fsync on a file also syncs the
directory metadata (I think they want link/rename to be
synchronous). This semantic is also provided by ext3 in 2 of its modes
(ordered,data=journal). My question is
a) Does XFS provide similar semantics which would make it reliable as
a filesystem for MTA queue ?
b) Are there any mount options which one has to enable this behaviour
?
Also, what's the version of XFS in the Alan Cox 2.4.22-pre6-ac1 kernel
Thanks, Yusuf
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