Hello all again, More information on this topic: http://lkml.org/lkml/2007/5/25/71 I guess the problem also applies to GFSS2. -- Mathieu Le Fri, 28 Mar 2008 15:34:58 +0100, Mathieu Avila <mathieu.avila@xxxxxxxxxxxx> a écrit : > Hello GFS team, > > Some recent kernel developements have brought IO barriers into the > kernel to prevent corruptions that could happen when blocks are being > reordered before write, by the kernel or the block device itself, just > before an electrical power failure. > (on high-end block devices with UPS or NVRAM, those problems cannot > happen) > Some file systems implement them, notably ext3 and XFS. It seems to me > that GFS1 has no such thing. > > Do you plan to implement it ? If so, could the attached patch do the > work ? It's incomplete : it would need a global tuning like > fast_stafs, and a mount option like it's done for ext3. The code is > mainly a copy-paste from JBD, and does a barrier only for journal > meta-data. (should i do it for other meta-data ?) > > Thanks, > > -- > Mathieu > -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
