[PATCH] Correct description of SwapFree in Documentation/filesystems/proc.txt

[Michael Kerrisk <mtk.manpages@gmail.com>]

After migrating most of the information in 
Documentation/filesystems/proc.txt to the proc(5) man page,
Jim Paris pointed out to me that the description of SwapFree
in the man page seemed wrong. I think Jim is right,
but am given pause by fact that that text has been in 
Documentation/filesystems/proc.txt since at least 2.6.0.
Anyway, I believe that the patch below fixes things.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>


diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index a1793d6..cf4260f 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -778,8 +778,7 @@ AnonHugePages:   49152 kB
               other things, it is where everything from the Slab is
               allocated.  Bad things happen when you're out of lowmem.
    SwapTotal: total amount of swap space available
-    SwapFree: Memory which has been evicted from RAM, and is temporarily
-              on the disk
+    SwapFree: Amount of swap space that is currently unused.
        Dirty: Memory which is waiting to get written back to the disk
    Writeback: Memory which is actively being written back to the disk
    AnonPages: Non-file backed pages mapped into userspace page tables

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