diff options
author | Randy Dunlap <randy.dunlap@oracle.com> | 2007-05-17 05:11:12 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-17 12:23:05 (GMT) |
commit | 621e59a771f310358ade8f14cb745d5d5f1c410e (patch) | |
tree | f3d9cbb2171dc597a65a6e4a3f684c2c625923ab | |
parent | 3dd1a32968d5e4cc61d4f7e3dc396ed0faca6984 (diff) | |
download | linux-fsl-qoriq-621e59a771f310358ade8f14cb745d5d5f1c410e.tar.xz |
docbook: make kernel-locking table readable
Andi Kleen pointed out to me that the kernel locking cheat sheet
table entries are unreadable.
Make table entries smaller so that pdf and ps output is readable
(columns were being overwritten and garbled) by using abbreviations.
This allows the tables to fit on one page cleanly.
Add a Legend for the abbreviations:
SLIS: spin_lock_irqsave
SLI: spin_lock_irq
SL: spin_lock
SLBH: spin_lock_bh
DI: down_interruptible
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r-- | Documentation/DocBook/kernel-locking.tmpl | 123 |
1 files changed, 78 insertions, 45 deletions
diff --git a/Documentation/DocBook/kernel-locking.tmpl b/Documentation/DocBook/kernel-locking.tmpl index 644c388..0a441f7 100644 --- a/Documentation/DocBook/kernel-locking.tmpl +++ b/Documentation/DocBook/kernel-locking.tmpl @@ -551,10 +551,12 @@ <function>spin_lock_irqsave()</function>, which is a superset of all other spinlock primitives. </para> + <table> <title>Table of Locking Requirements</title> <tgroup cols="11"> <tbody> + <row> <entry></entry> <entry>IRQ Handler A</entry> @@ -576,97 +578,128 @@ <row> <entry>IRQ Handler B</entry> -<entry>spin_lock_irqsave</entry> +<entry>SLIS</entry> <entry>None</entry> </row> <row> <entry>Softirq A</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SL</entry> </row> <row> <entry>Softirq B</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SL</entry> +<entry>SL</entry> </row> <row> <entry>Tasklet A</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SL</entry> +<entry>SL</entry> <entry>None</entry> </row> <row> <entry>Tasklet B</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SL</entry> +<entry>SL</entry> +<entry>SL</entry> <entry>None</entry> </row> <row> <entry>Timer A</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SL</entry> +<entry>SL</entry> +<entry>SL</entry> +<entry>SL</entry> <entry>None</entry> </row> <row> <entry>Timer B</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> -<entry>spin_lock</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SL</entry> +<entry>SL</entry> +<entry>SL</entry> +<entry>SL</entry> +<entry>SL</entry> <entry>None</entry> </row> <row> <entry>User Context A</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> <entry>None</entry> </row> <row> <entry>User Context B</entry> +<entry>SLI</entry> +<entry>SLI</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>SLBH</entry> +<entry>DI</entry> +<entry>None</entry> +</row> + +</tbody> +</tgroup> +</table> + + <table> +<title>Legend for Locking Requirements Table</title> +<tgroup cols="2"> +<tbody> + +<row> +<entry>SLIS</entry> +<entry>spin_lock_irqsave</entry> +</row> +<row> +<entry>SLI</entry> <entry>spin_lock_irq</entry> -<entry>spin_lock_irq</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> -<entry>spin_lock_bh</entry> +</row> +<row> +<entry>SL</entry> +<entry>spin_lock</entry> +</row> +<row> +<entry>SLBH</entry> <entry>spin_lock_bh</entry> +</row> +<row> +<entry>DI</entry> <entry>down_interruptible</entry> -<entry>None</entry> </row> </tbody> </tgroup> </table> + </sect1> </chapter> |