8d82a19def
Our zfs backed Lustre MDT had soft lockups while under heavy metadata workloads while handling transaction callbacks from osd_zfs. The problem is zfs is not taking advantage of the fast path in Lustre's trans callback handling, where Lustre will skip the calls to ptlrpc_commit_replies() when it already saw a higher transaction number. This patch corrects this, it also has a positive impact on metadata performance on Lustre with osd_zfs, plus some cleanup in the headers. A similar issue for ext4/ldiskfs is described on: https://jira.hpdd.intel.com/browse/LU-6527 Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Li Dongyang <dongyang.li@anu.edu.au> Closes #6986 |
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| .. | ||
| linux | ||
| sys | ||
| Makefile.am | ||
| libnvpair.h | ||
| libuutil.h | ||
| libuutil_common.h | ||
| libuutil_impl.h | ||
| libzfs.h | ||
| libzfs_core.h | ||
| libzfs_impl.h | ||
| zfeature_common.h | ||
| zfs_comutil.h | ||
| zfs_deleg.h | ||
| zfs_fletcher.h | ||
| zfs_namecheck.h | ||
| zfs_prop.h | ||
| zpios-ctl.h | ||
| zpios-internal.h | ||