![]() | |||||||||||||
Messages in this thread |
At 03 Feb 2004 23:10:52 -0800, Dave Hansen wrote: > remap_onepage() is quite a function. 300 lines. It sure does cover a > lot of ground. :) > > Defragmentation is a bit easier than removal because it isn't as > mandatory. Instead of having to worry about waiting on things like > writeback, the defrag code can just bail. Waiting for !pagewriteback and writing back page at the beginning of remap_onepage() are a sort of "easy part". We need to wait for exclusive access of a page before copying anyway, and interesting things such as vmtruncate can happen while waiting for it. I don't think the code can be much shorter without assuming a single processor !CONFIG_PREEMPT system. -- IWAMOTO Toshihiro - 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/ | ||||||||||||
| Last update: 2005-03-22 13:00 [from the cache] ©2003-2008 | |||||||||||||