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authorSunil Mushran <sunil.mushran@oracle.com>2007-12-20 17:58:11 -0500
committerMark Fasheh <mark.fasheh@oracle.com>2008-01-25 18:05:43 -0500
commit2fbe8d1ebe004425b4f7b8bba345623d2280be82 (patch)
tree7620954c7a364c41306a3becc0046dd1e235158f /Documentation/device-mapper
parentd147b3d630edef1d34de6ea819787a1ac1b8603b (diff)
ocfs2: Local alloc window size changeable via mount option
Local alloc is a performance optimization in ocfs2 in which a node takes a window of bits from the global bitmap and then uses that for all small local allocations. This window size is fixed to 8MB currently. This patch allows users to specify the window size in MB including disabling it by passing in 0. If the number specified is too large, the fs will use the default value of 8MB. mount -o localalloc=X /dev/sdX /mntpoint Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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