> There are two other memory allocations during writeout: a vector of pages > to be written, and the message we're sending to the OSD. If I use a > mempool for those to guarantee as least some writeout will occur, how do I > safely defer when allocations do fail? Will pdflush (or it's replacement) > eventually come back and try ->writepages() again? mempool allocs should never fail, just block for a long time until someone else frees. This means you need to ensure of course you always make forward progress. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
