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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2005-07-07 17:56:52 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-07 18:23:44 -0700
commit605a69ac81249cca531cdc6b3e695f15dda63102 (patch)
treef42d781478ddf14288d3952263363efde1bc45a2 /arch/xtensa
parent3f580470baa3afc423e38fdc6e19667446b5aac0 (diff)
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[PATCH] uml: remove winch sem
Replace a semaphore (winch_handler_sem) used in atomic code with a spinlock, and reduces as needed the amount of protected code to the bare minimum (for instance no kmalloc calls are needed). This fixes the last problems with spinlocking (in UP mode with DEBUG options); the semaphore, taken inside spinlocks, caused a "spin_lock was already locked" warning, without this patch. 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>
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