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docs: vm: zswap.rst: replace some characters

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The conversion tools used during DocBook/LaTeX/html/Markdown->ReST
conversion and some cut-and-pasted text contain some characters that
aren't easily reachable on standard keyboards and/or could cause
troubles when parsed by the documentation build system.

Replace the occurences of the following characters:

	- U+00a0 (' '): NO-BREAK SPACE
	  as it can cause lines being truncated on PDF output

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/9a93b72f99f8f3328269076ceff50248ac9c5af5.1623826294.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2021-06-16 08:55:11 +02:00 committed by Jonathan Corbet
parent 570eb86124
commit 1a967a3122
1 changed files with 2 additions and 2 deletions
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Documentation/vm/zswap.rst
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@ -10,7 +10,7 @@ Overview
Zswap is a lightweight compressed cache for swap pages. It takes pages that are
in the process of being swapped out and attempts to compress them into a
dynamically allocated RAM-based memory pool. zswap basically trades CPU cycles
for potentially reduced swap I/O.  This trade-off can also result in a
for potentially reduced swap I/O. This trade-off can also result in a
significant performance improvement if reads from the compressed cache are
faster than reads from a swap device.
@ -26,7 +26,7 @@ faster than reads from a swap device.
performance impact of swapping.
* Overcommitted guests that share a common I/O resource can
dramatically reduce their swap I/O pressure, avoiding heavy handed I/O
throttling by the hypervisor. This allows more work to get done with less
throttling by the hypervisor. This allows more work to get done with less
impact to the guest workload and guests sharing the I/O subsystem
* Users with SSDs as swap devices can extend the life of the device by
drastically reducing life-shortening writes.