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Message-ID: <20151015020549.GE1735@swordfish> Date: Thu, 15 Oct 2015 11:05:49 +0900 From: Sergey Senozhatsky <sergey.senozhatsky.work@...il.com> To: Joonsoo Kim <js1304@...il.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, Minchan Kim <minchan@...nel.org>, Nitin Gupta <ngupta@...are.org>, Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>, Herbert Xu <herbert@...dor.apana.org.au>, "David S. Miller" <davem@...emloft.net>, Stephan Mueller <smueller@...onox.de>, linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org, Joonsoo Kim <iamjoonsoo.kim@....com> Subject: Re: [PATCH v4 8/8] zram: enable contextless compression alg in zram On (10/14/15 16:38), Joonsoo Kim wrote: [..] > @@ -352,6 +352,7 @@ static ssize_t comp_algorithm_show(struct device *dev, > size_t sz; > struct zram *zram = dev_to_zram(dev); > > + deprecated_attr_warn("comp_algorithm"); > down_read(&zram->init_lock); > sz = zcomp_available_show(zram->compressor, buf); > up_read(&zram->init_lock); oh, one more thing. deprecated_attr_warn() should come with `Documentation/ABI/obsolete/sysfs-block-zram' update. something like: diff --git a/Documentation/ABI/obsolete/sysfs-block-zram b/Documentation/ABI/obsolete/sysfs-block-zram index 720ea92..ad5b59d 100644 --- a/Documentation/ABI/obsolete/sysfs-block-zram +++ b/Documentation/ABI/obsolete/sysfs-block-zram @@ -117,3 +117,14 @@ Description: Downgraded to write-only node: so it's possible to set new value only; its current value is stored in zram<id>/mm_stat node. + +What: /sys/block/zram<id>/comp_algorithm +Date: XXX +Contact: XXX +Description: + The comp_algorithm file is read/write and provides information + on available, currently selected compression algorithm (read + operation) and lets one to change the compression algorithm + (write operation). + Downgraded to write-only node: use `/proc/crypto' to get the + list of supported compression algorithms. --- And I guess Cc `Jonathan Corbet <corbet@....net>' (doc maintainer) and 'linux-api@...r.kernel.org' will be the right thing to do here. -ss -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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