ext3: default to ordered mode
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>
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@ -31,6 +31,7 @@ config EXT3_FS
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config EXT3_DEFAULTS_TO_ORDERED
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config EXT3_DEFAULTS_TO_ORDERED
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bool "Default to 'data=ordered' in ext3"
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bool "Default to 'data=ordered' in ext3"
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depends on EXT3_FS
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depends on EXT3_FS
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default y
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help
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help
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The journal mode options for ext3 have different tradeoffs
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The journal mode options for ext3 have different tradeoffs
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between when data is guaranteed to be on disk and
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between when data is guaranteed to be on disk and
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