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ext3: default to ordered mode

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data=writeback mode is dangerous as it leads to higher data loss and stale data
exposure when systems crash. It should not be the default, especially when all
major distros ensure their ext3 filesystems default to ordered mode. Change the
default mode to the safer data=ordered mode, because we should be caring far
more about avoiding stale data exposure than performance.

CC: linux-ext4@vger.kernel.org
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Acked-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Dave Chinner 2010-07-23 12:49:41 +02:00 committed by Jan Kara
parent 43d2932d88
commit aa32a79638
1 changed files with 1 additions and 0 deletions
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fs/ext3/Kconfig
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@ -31,6 +31,7 @@ config EXT3_FS
config EXT3_DEFAULTS_TO_ORDERED config EXT3_DEFAULTS_TO_ORDERED
bool "Default to 'data=ordered' in ext3" bool "Default to 'data=ordered' in ext3"
depends on EXT3_FS depends on EXT3_FS
default y
help help
The journal mode options for ext3 have different tradeoffs The journal mode options for ext3 have different tradeoffs
between when data is guaranteed to be on disk and between when data is guaranteed to be on disk and