PR/47030 CVS commit: src/sys/kern

["Jaromir Dolecek" <jdolecek%netbsd.org@localhost>]

The following reply was made to PR kern/47030; it has been noted by GNATS.

From: "Jaromir Dolecek" <jdolecek%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/47030 CVS commit: src/sys/kern
Date: Mon, 10 Apr 2017 21:34:37 +0000

 Module Name:	src
 Committed By:	jdolecek
 Date:		Mon Apr 10 21:34:37 UTC 2017
 
 Modified Files:
 	src/sys/kern: vfs_wapbl.c
 
 Log Message:
 improve performance of journal writes by parallelizing the I/O - use 4 bufs
 by default, add sysctl vfs.wapbl.journal_iobufs to control it
 
 this also removes need to allocate iobuf during commit, so it
 might help to avoid deadlock during memory shortages like PR kern/47030
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.94 -r1.95 src/sys/kern/vfs_wapbl.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.