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authorMilan Broz <mbroz@redhat.com>2008-02-07 21:11:27 -0500
committerAlasdair G Kergon <agk@redhat.com>2008-02-07 21:11:27 -0500
commitd74f81f8adc504a23be3babf347b9f69e9389924 (patch)
tree4a687e400479ad330bb36ded54012cd8b8b84ecf /drivers/md/dm-raid1.c
parent4f7f5c675fd6bacaae3c67be44de872dcff0e3b7 (diff)
dm snapshot: combine consecutive exceptions in memory
Provided sector_t is 64 bits, reduce the in-memory footprint of the snapshot exception table by the simple method of using unused bits of the chunk number to combine consecutive entries. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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