zram: Compressed RAM based block devices
----------------------------------------
* Introduction

The zram module creates RAM based block devices named /dev/zram<id>
(<id> = 0, 1, ...). Pages written to these disks are compressed and stored
in memory itself. These disks allow very fast I/O and compression provides
good amounts of memory savings. Some of the usecases include /tmp storage,
use as swap disks, various caches under /var and maybe many more :)

Statistics for individual zram devices are exported through sysfs nodes at
/sys/block/zram<id>/

Kconfig required:
CONFIG_ZRAM=y
CONFIG_CRYPTO_LZ4=y
CONFIG_ZPOOL=y
CONFIG_ZSMALLOC=y

ZRAM Testcases
--------------
zram_lib.sh: create library with initialization/cleanup functions
zram.sh: For sanity check of CONFIG_ZRAM and to run zram01 and zram02

Two functional tests: zram01 and zram02:
zram01.sh: creates general purpose ram disks with ext4 filesystems
zram02.sh: creates block device for swap

Commands required for testing:
 - bc
 - dd
 - free
 - awk
 - mkswap
 - swapon
 - swapoff
 - mkfs/ mkfs.ext4

For more information please refer:
kernel-source-tree/Documentation/blockdev/zram.txt
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/firmware?id=5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'>firmware</a>/<a href='/cgit.cgi/linux/net-next.git/commit/firmware/edgeport?id=5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'>edgeport</a>/<a href='/cgit.cgi/linux/net-next.git/commit/firmware/edgeport/boot.H16?id=5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'>boot.H16</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Eric Jeong &lt;eric.jeong.opensource@diasemi.com&gt;</td><td class='right'>2016-09-26 16:33:27 +0900</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-09-26 08:59:08 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/firmware/edgeport/boot.H16?id=5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'>5ff00f6aa84b7f4203f525fc6c4a4291e32c314d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/firmware/edgeport/boot.H16?id=5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'>patch</a>)</td></tr>
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<div class='commit-subject'>regulator: pv88080: Update regulator for PV88080 BB silicon support</div><div class='commit-msg'>Three files are modified, the driver, header file and the binding document.

Updates for the regulator source file include and .of_match_table entry
and node match checking in the probe() function for a compatible pv88080
silicon type. A new "HVBUCK" is added in source file and added
regsiter definition in header file for pv88080 bb silicion.
The binding documentation changes have been made to reflect these updates.

Signed-off-by: Eric Jeong &lt;eric.jeong.opensource@diasemi.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=5ff00f6aa84b7f4203f525fc6c4a4291e32c314d'>Diffstat</a> (limited to 'firmware/edgeport/boot.H16')</div><table summary='diffstat' class='diffstat'>