On 22/11/18 at 22:31, Martin Steigerwald wrote: > barrier related mount options are deprecated, well even removed at least > for XFS, deprecated in 4.10 and and removed in 4.19¹. Write barriers > have been replaced by explicit cache flushes² (somewhere around 2.6.39… > I am too lazy to look it up in my Linux Performance tuning and analysis > training slides right now).
To bad I can't take advantage of them because of this: [ 1.031094] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA > But with kernels still supporting the mount > option, nobarrier or barrier=0 would have been simply dangerous for data > integrity unless you have made sure that no sudden write interruption by > for example power loss can happen. I use them on battery-backed systems. Bye, -- Alessandro Selli <[email protected]> VOIP SIP: [email protected] Chiave firma e cifratura PGP/GPG signing and encoding key: BA651E4050DDFC31E17384BABCE7BD1A1B0DF2AE
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