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author | Jesper Juhl <juhl-lkml@dif.dk> | 2005-06-23 00:09:09 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 09:45:19 -0700 |
commit | be5b4fbd017d12e0d09ea0528a5839ce2ed2c8c8 (patch) | |
tree | 212a43003d1c4265718f53502547f36acbec143d /mm | |
parent | dcd497f99a1ef29a7c5e76142965be77e9dacabd (diff) | |
download | lwn-be5b4fbd017d12e0d09ea0528a5839ce2ed2c8c8.tar.gz lwn-be5b4fbd017d12e0d09ea0528a5839ce2ed2c8c8.zip |
[PATCH] preempt_count is int - remove cast and don't assign to unsigned type
In kernel/sched.c the return value from preempt_count() is cast to an int.
That made sense when preempt_count was defined as different types on is not
needed and should go away. The patch removes the cast.
In kernel/timer.c the return value from preempt_count() is assigned to a
variable of type u32 and then that unsigned value is later compared to
preempt_count(). Since preempt_count() returns an int, an int is what
should be used to store its return value. Storing the result in an
unsigned 32bit integer made a tiny bit of sense back when preempt_count was
different types on different archs, but no more - let's not play signed vs
unsigned comparison games when we don't have to. The patch modifies the
code to use an int to hold the value. While I was around that bit of code
I also made two changes to a nearby (related) printk() - I modified it to
specify the loglevel explicitly and also broke the line into a few pieces
to avoid it being longer than 80 chars and clarified the text a bit.
Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions