[PATCH][SCST]: Update of text in SCST README about barriers usage

[Vladislav Bolkhovitin]

This patch updates text in SCST README about barriers usage

Signed-off-by: Vladislav Bolkhovitin <vst@xxxxxxxx>

 README |   11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

Index: scst/README
===================================================================
--- scst/README	(revision 641)
+++ scst/README	(working copy)
@@ -607,12 +607,11 @@ IMPORTANT: By default for performance re
 	   On Linux initiators for EXT3 and ReiserFS file systems the
 	   barrier protection could be turned on using "barrier=1" and
 	   "barrier=flush" mount options correspondingly. Note, that
-	   usually it turned off by default and the status of barriers
-	   usage isn't reported anywhere in the system logs as well as
-	   there is no way to know it on the mounted file system (at
-	   least no known one). Windows and, AFAIK, other UNIX'es don't
-	   need any special explicit options and do necessary barrier
-	   actions on write-back caching devices by default. Also note
+	   usually it's turned off by default (see http://lwn.net/Articles/283161).
+	   You can check if it's turn on or off by looking in /proc/mounts.
+	   Windows and, AFAIK, other UNIX'es don't need any special
+	   explicit options and do necessary barrier actions on
+	   write-back caching devices by default. Also note
 	   that on some real-life workloads write through caching might
 	   perform better, than write back one with the barrier
 	   protection turned on.

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