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btrfs-progs: free-space-cache: Use DIV_ROUND_UP() to replace open code

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Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2018-03-05 16:09:12 +08:00 committed by David Sterba
parent f44a055012
commit bb338fb0f0
1 changed files with 1 additions and 2 deletions
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free-space-cache.c
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@ -54,8 +54,7 @@ static int io_ctl_init(struct io_ctl *io_ctl, u64 size, u64 ino,
struct btrfs_root *root)
{
memset(io_ctl, 0, sizeof(struct io_ctl));
io_ctl->num_pages = (size + root->fs_info->sectorsize - 1) /
root->fs_info->sectorsize;
io_ctl->num_pages = DIV_ROUND_UP(size, root->fs_info->sectorsize);
io_ctl->buffer = kzalloc(size, GFP_NOFS);
if (!io_ctl->buffer)
return -ENOMEM;