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authorHeiko Carstens <heiko.carstens@de.ibm.com>2006-02-17 13:52:48 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-17 13:59:27 -0800
commit54330456b2e3398743586254f6d7695061ea0d49 (patch)
tree1527f8c2a5ff6247e88b73f6529b2b6b7aa9d724 /drivers/scsi/scsi_typedefs.h
parent37a3302618a51520e2056494715ea6b4776dd8ab (diff)
[PATCH] s390: smp initialization speed
The last changes that introduced the additional_cpus command line parameter also introduced a regression regarding smp initialization speed. In smp_setup_cpu_possible_map() cpu_present_map is set to the same value as cpu_possible_map. Especially that means that bits in the present map will be set for cpus that are not present. This will cause a slow down in the initial cpu_up() loop in smp_init() since trying to take cpus online that aren't present takes a while. Fix this by setting only bits for present cpus in cpu_present_map and set cpu_present_map to cpu_possible_map in smp_cpus_done(). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/scsi/scsi_typedefs.h')
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