]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] uml: sigio code - reduce spinlock hold time
authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Thu, 19 Jan 2006 01:42:57 +0000 (17:42 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Thu, 19 Jan 2006 03:20:21 +0000 (19:20 -0800)
commitb6a2b13778873bd9edd0b4a7d24a7bd730369021
treedc534ba13079c9fcecb2c02798c5021a26a95ae4
parent71c8d4c3aad3132765d30b05dce98bb8a9508f02
[PATCH] uml: sigio code - reduce spinlock hold time

In a previous patch I shifted an allocation to being atomic.

In this patch, a better but more intrusive solution is implemented, i.e.  hold
the lock only when really needing it, especially not over pipe operations, nor
over the culprit allocation.

Additionally, while at it, add a missing kfree in the failure path, and make
sure that if we fail in forking, write_sigio_pid is -1 and not, say, -ENOMEM.

And fix whitespace, at least for things I was touching anyway.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/um/kernel/sigio_user.c