svn commit: r48347 - head/en_US.ISO8859-1/books/arch-handbook/driverbasics

Jason Helfman jgh at FreeBSD.org
Sun Mar 6 17:39:27 UTC 2016


Author: jgh
Date: Sun Mar  6 17:39:25 2016
New Revision: 48347
URL: https://svnweb.freebsd.org/changeset/doc/48347

Log:
  - improve readability
  
  Submitted by:	Chris Petrik
  Differential Revision:	https://reviews.freebsd.org/D5557 (based on)

Modified:
  head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml

Modified: head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml
==============================================================================
--- head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml	Sun Mar  6 14:44:58 2016	(r48346)
+++ head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml	Sun Mar  6 17:39:25 2016	(r48347)
@@ -385,12 +385,17 @@ Closing device "echo".</screen>
       block-devices almost unusable, or at least dangerously
       unreliable.  The caching will reorder the sequence of write
       operations, depriving the application of the ability to know the
-      exact disk contents at any one instant in time.  This makes
-      predictable and reliable crash recovery of on-disk data
-      structures (filesystems, databases etc.) impossible.  Since
+      exact disk contents at any one instant in time.</para>
+
+    <para>
+      This makes predictable and reliable crash recovery of on-disk
+      data structures (filesystems, databases etc.) impossible.  Since
       writes may be delayed, there is no way the kernel can report to
       the application which particular write operation encountered a
-      write error, this further compounds the consistency problem.
+      write error, this further compounds the consistency
+      problem.</para>
+
+    <para>
       For this reason, no serious applications rely on block devices,
       and in fact, almost all applications which access disks directly
       take great pains to specify that character (or


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