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PR/45829 CVS commit: src/sys/dev
The following reply was made to PR kern/45829; it has been noted by GNATS.
From: "Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>
Subject: PR/45829 CVS commit: src/sys/dev
Date: Mon, 26 Mar 2012 16:28:09 +0000
Module Name: src
Committed By: hannken
Date: Mon Mar 26 16:28:08 UTC 2012
src/sys/dev: vnd.c vndvar.h
When backed by a sparse file limit the number of pending requests.
Should fix PR #45829: "writing to vnd on sparse file blocks on pager_map"
where the pager_map gets exhausted by requests enqueued on a vnd
device and the device worker thread blocks on putpages() needing the map.
While here always sync the underlying vnode before calling biodone().
XXX: vnd should be converted to mutex/condvar.
To generate a diff of this commit:
cvs rdiff -u -r1.219 -r1.220 src/sys/dev/vnd.c
cvs rdiff -u -r1.31 -r1.32 src/sys/dev/vndvar.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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