Messages in this thread | | | Date | Sat, 2 Nov 2002 22:28:51 +0100 | From | Pavel Machek <> | Subject | Re: [announce] swap mini-howto |
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Hi! > > > That has changed in 2.5. Swapping onto a regular file has no > > > disadvantage wrt swapping onto a block device. The kernel does > > > not need to allocate any memory at all to get a swapcache page > > > onto disk. > > > > Well, you can swsusp to partition. You can't swsusp to a file, as that > > is very hard to do. > > Why is it very hard to do ? > > For the swap layer, swap to a partition or to a file is the > same thing. > > Does swsusp rely on restoring memory from the swap partition > before mounting the root filesystem or is there more behind > your objection ?
Yep, I rely on that.
[Even read-only mount of ext3 might cause journal replay, which means data corruption. If there's real-read-only mode, resume-from-file might be doable. Pavel
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