[PATCH] tmpfs 6/6: percentile sizing of tmpfs
From: CaT <cat@zip.com.au> What this patch does is allow you to specify the max amount of memory tmpfs can use as a percentage of available real ram. This (in my eyes) is useful so that you do not have to remember to change the setting if you want something other then 50% and some of your ram goes. Hugh redid the arithmetic to not overflow at 4GB; the particular order of lines helps RH's gcc-2.96-110 not to get confused in the do_div. 2.5 can use totalram_pages. Update mount options in tmpfs Doc. There's an argument that the percentage should be of ram+swap, that's what Christoph originally intended. But we set the default at 50% of ram only, so I believe it's more consistent to follow that precedent.
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