On 23.01.19 г. 0:59 ч., Matthew Friday wrote: > Signed-off-by: Matthew Friday <lkmfri...@gmail.com> It seems you are using an outdated version of the code. When sending new code always base it on misc-next branch from https://github.com/kdave/btrfs-devel > --- > fs/btrfs/ioctl.c | 3 --- > 1 file changed, 3 deletions(-) > > diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c > index 9c8e1734429c..6243f734c0cd 100644 > --- a/fs/btrfs/ioctl.c > +++ b/fs/btrfs/ioctl.c > @@ -3278,7 +3278,6 @@ static int btrfs_extent_same(struct inode *src, u64 > loff, u64 olen, > struct inode *dst, u64 dst_loff) > { > int ret; > - int num_pages = PAGE_ALIGN(BTRFS_MAX_DEDUPE_LEN) >> PAGE_SHIFT; > u64 i, tail_len, chunk_count; > > /* don't make the dst file partly checksummed */ > @@ -3291,8 +3290,6 @@ static int btrfs_extent_same(struct inode *src, u64 > loff, u64 olen, > > tail_len = olen % BTRFS_MAX_DEDUPE_LEN; > chunk_count = div_u64(olen, BTRFS_MAX_DEDUPE_LEN); > - if (chunk_count == 0) > - num_pages = PAGE_ALIGN(tail_len) >> PAGE_SHIFT; > > for (i = 0; i < chunk_count; i++) { > ret = btrfs_extent_same_range(src, loff, BTRFS_MAX_DEDUPE_LEN, >
