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| author | Mikulas Patocka <mpatocka@redhat.com> | 2008-04-25 20:05:39 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-05-01 14:44:33 -0700 |
| commit | e7606a8778abd6e7458e923cfbc045382c24dd03 (patch) | |
| tree | 7bd4fd9a10d12d091ff1642fecaba15d375f9b9f | |
| parent | 6608b478c7ddc1122582fc94879e6998b895a096 (diff) | |
dm snapshot: fix chunksize sector conversion
commit: 924362629bf5645aee5f49f8a0d0d5b193e65997
If a snapshot has a smaller chunksize than the page size the
conversion to pages currently returns 0 instead of 1, causing:
kernel BUG in mempool_resize.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/md/dm-exception-store.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 5bbce29f143..c7d305bfd83 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -131,7 +131,7 @@ struct pstore { static unsigned sectors_to_pages(unsigned sectors) { - return sectors / (PAGE_SIZE >> 9); + return DIV_ROUND_UP(sectors, PAGE_SIZE >> 9); } static int alloc_area(struct pstore *ps) |