Searched hist:248574 (Results 1 - 1 of 1) sorted by relevance
| /freebsd-10-stable/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/ | ||
| H A D | trim_map.h | diff 248574 Thu Mar 21 08:27:37 MDT 2013 smh Improve TXG handling in the TRIM module. This patch adds some improvements to the way the trim module considers TXGs: - Free ZIOs are registered with the TXG from the ZIO itself, not the current SPA syncing TXG (which may be out of date); - L2ARC are registered with a zero TXG number, as L2ARC has no concept of TXGs; - The TXG limit for issuing TRIMs is now computed from the last synced TXG, not the currently syncing TXG. Indeed, under extremely unlikely race conditions, there is a risk we could trim blocks which have been freed in a TXG that has not finished syncing, resulting in potential data corruption in case of a crash. Reviewed by: pjd (mentor) Approved by: pjd (mentor) Obtained from: https://github.com/dechamps/zfs/commit/5b46ad40d9081d75505d6f3bf04ac652445df366 MFC after: 2 weeks |
Completed in 283 milliseconds