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RFC xfs: deprecate barrier/nobarrier

Dave Chinner linux-xfs 1 version In review

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  1. v1 RFC Latest2 patches 8 repliesIn review

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#Subject and filesSizeRepliesApplied
1/2xfs: Always flush caches when integrity is requiredfs/xfs/xfs_buf.c fs/xfs/xfs_file.c fs/xfs/xfs_log.c+28 -402 replies
2/2xfs: deprecate barrier/nobarrier mount optionDocumentation/filesystems/xfs.txt fs/xfs/xfs_super.c+20 -176 replies

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PatchChristoph Hellwig
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Cover letter [RFC PATCH 0/2] xfs: deprecate barrier/nobarrier

Hi folks,

In response to the recent conversation here:

https://www.spinics.net/lists/linux-xfs/msg02501.html

I've come to the conclusion that barrier/nobarrier mount options no longer make sense to maintain. There is no performance penalty for the vast majority of users to enabling barriersand it's been the default behaviour for a long time. And given the misunderstanding that users have over what barriers are and when it is safe to turn them off, it seems to me like the best solution is to simply remove the option altogther.

Comments, thoughts, flames all welcome.

-Dave.

Read the cover letter in its thread