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CVS commit: src/sys/dev
Module Name: src
Committed By: hannken
Date: Wed Jun 29 09:12:42 UTC 2011
Modified Files:
src/sys/dev: vnd.c vndvar.h
Log Message:
Make vnd(4) work on sparse files:
- Make the strategy decision a device flag and set VNF_USE_VN_RDWR for
files known to be sparse.
- Change handle_with_rdwr() to use POSIX_FADV_NOREUSE advise to disable
read ahead and keep the size of mapped pages below 1 MByte.
No objections on tech-kern@.
To generate a diff of this commit:
cvs rdiff -u -r1.217 -r1.218 src/sys/dev/vnd.c
cvs rdiff -u -r1.30 -r1.31 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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