| commit | d74f81f8adc504a23be3babf347b9f69e9389924 | |
| author | Milan Broz <mbroz@redhat.com> | |
| Fri, 8 Feb 2008 02:11:27 +0000 (8 02:11 +0000) | ||
| committer | Alasdair G Kergon <agk@redhat.com> | |
| Fri, 8 Feb 2008 02:11:27 +0000 (8 02:11 +0000) | ||
| tree | 4a687e400479ad330bb36ded54012cd8b8b84ecf | treesnapshot (tar.gz zip) |
| parent | 4f7f5c675fd6bacaae3c67be44de872dcff0e3b7 | commitdiff |
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>
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>
| drivers/md/dm-snap.c | diffblobblamehistory | |
| drivers/md/dm-snap.h | diffblobblamehistory |