do_div() works wrong in case of the second argument is long. We don't need remainder, so we don't need do_div() at all.
https://jira.sw.ru/browse/PSBM-122035 Reported-by: Evgenii Shatokhin <eshatok...@virtuozzo.com> Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com> --- drivers/block/ploop/io_direct_map.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/ploop/io_direct_map.c b/drivers/block/ploop/io_direct_map.c index 5528e86aab43..8f09ab083315 100644 --- a/drivers/block/ploop/io_direct_map.c +++ b/drivers/block/ploop/io_direct_map.c @@ -377,7 +377,7 @@ static inline void purge_lru_warn(struct extent_map_tree *tree) loff_t ratio = i_size_read(tree->mapping->host) * 100; long images_size = atomic_long_read(&ploop_io_images_size) ? : 1; - do_div(ratio, images_size); + ratio /= images_size; printk(KERN_WARNING "Purging lru entry from extent tree for inode %ld " "(map_size=%d ratio=%lld%%)\n", _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
