Andriy Gapon 6470c31911 l2arc: pass correct size to trim requests ... b_size is a logical size of a buffer in memory, b_asize is its physical size that accounts for possible compression. Currently the latter is the best approximation for the allocated, on-disk size. L2ARC TRIM support was committed a few weeks before L2ARC compression was imported, so originally the code was correct, because b_size was the size. Further thoughts. Given that the cache device is being overwritten in a circular fashion it is not clear if a TRIM per each evicted L2ARC buffer has any benefits. Maybe it would be sufficient to issue a single trim request for the whole device when it is loaded, e.g. after a bootup, or when it is unloaded, e.g. before a shutdown. At least as long as L2ARC is not persistent across reboots. Discussed with: smh MFC after: 19 says		2015-06-17 12:28:13 +00:00
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zfs	l2arc: pass correct size to trim requests	2015-06-17 12:28:13 +00:00
gfs.c	Use the "zfs_gfs" tag for GFS vnodes to make them easier to identify.	2015-01-20 22:31:26 +00:00
vnode.c