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authorTejun Heo2009-03-07 00:44:09 +0900
committerTejun Heo2009-03-07 00:44:09 +0900
commit9f7dcf224bd09ec9ebcbfb383bf2c465e0e0b03d (patch)
tree9e8b07047080fbdb4f4c8f1554d5208570e64fe2 /.mailmap
parent1880d93b80acc3171850e9df5048bcb26b75c2f5 (diff)
percpu: move chunk area map extension out of area allocation
Impact: code reorganization for later changes Separate out chunk area map extension into a separate function - pcpu_extend_area_map() - and call it directly from pcpu_alloc() such that pcpu_alloc_area() is guaranteed to have enough area map slots on invocation. With this change, pcpu_alloc_area() does only area allocation and the only failure mode is when the chunk doens't have enough room, so there's no need to distinguish it from memory allocation failures. Make it return -1 on such cases instead of hacky -ENOSPC. Signed-off-by: Tejun Heo <tj@kernel.org>
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