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authorBadari Pulavarty <pbadari@us.ibm.com>2006-06-26 00:25:04 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:20 -0700
commitade1a29e168ba08b699a418ff5e762315fa33f70 (patch)
treed01dbf3a9da6f76d21e2c0b17f481709b17c8839 /Documentation/filesystems/ext3.txt
parent71c0cd7042672fce2463d82183d20bfb574f4cb5 (diff)
[PATCH] ext3: Add "-o bh" option
This patch adds "-o bh" option to force use of buffer_heads. This option is needed when we make "nobh" as default - and if we run into problems. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/filesystems/ext3.txt')
-rw-r--r--Documentation/filesystems/ext3.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt
index afb1335c05d6..4aecc9bdb273 100644
--- a/Documentation/filesystems/ext3.txt
+++ b/Documentation/filesystems/ext3.txt
@@ -113,6 +113,14 @@ noquota
grpquota
usrquota
+bh (*) ext3 associates buffer heads to data pages to
+nobh (a) cache disk block mapping information
+ (b) link pages into transaction to provide
+ ordering guarantees.
+ "bh" option forces use of buffer heads.
+ "nobh" option tries to avoid associating buffer
+ heads (supported only for "writeback" mode).
+
Specification
=============