os/doc
3
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

- improve readability

Browse source 
Submitted by:	Chris Petrik
Differential Revision:	https://reviews.freebsd.org/D5557 (based on)
This commit is contained in:
Jason Helfman 2016-03-06 17:39:25 +00:00
parent eecba3d819
commit e09f3d4522
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=48347
1 changed files with 9 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

13
en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml
View file

@ -385,12 +385,17 @@ Closing device "echo".</screen>
block-devices almost unusable, or at least dangerously block-devices almost unusable, or at least dangerously
unreliable. The caching will reorder the sequence of write unreliable. The caching will reorder the sequence of write
operations, depriving the application of the ability to know the operations, depriving the application of the ability to know the
exact disk contents at any one instant in time. This makes exact disk contents at any one instant in time.</para>
predictable and reliable crash recovery of on-disk data
structures (filesystems, databases etc.) impossible. Since <para>
This makes predictable and reliable crash recovery of on-disk
data structures (filesystems, databases etc.) impossible. Since
writes may be delayed, there is no way the kernel can report to writes may be delayed, there is no way the kernel can report to
the application which particular write operation encountered a the application which particular write operation encountered a
write error, this further compounds the consistency problem. write error, this further compounds the consistency
problem.</para>
<para>
For this reason, no serious applications rely on block devices, For this reason, no serious applications rely on block devices,
and in fact, almost all applications which access disks directly and in fact, almost all applications which access disks directly
take great pains to specify that character (or take great pains to specify that character (or