Messages in this thread | | | Date | Thu, 17 Nov 2005 11:01:26 +0100 | From | Pavel Machek <> | Subject | Re: [RFC] userland swsusp |
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Hi!
> > No. Writing to file would trash the filesystem. But you can bmap the file, > > then write to the block device. > > And for reading, I could used a device mapper enforced read only mount or > filesystem code from grub.
Or use a filesystem that honours read-only option, like ext2...
> Hmm, how about a possibility to ask the kernel for a list of free pages on a > swap device? This way, userspace could write the image to swap as the kernel > currently does, avoiding possible trouble with filesystems.
Yes, that is the plan.
> > Better avoid memory allocation. > > And all memory allocated and mapped in advance would be part of the image. But > this is totally acceptable for a "suspend helper".
Yes. Pavel -- Thanks, Sharp! - 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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