On Sun, Oct 04, 2020 at 07:04:26PM +0100, Matthew Wilcox (Oracle) wrote: > On 32-bit systems, this shift will overflow for files larger than 4GB. > > Cc: [email protected] > Fixes: df480633b891 ("btrfs: extent-tree: Switch to new delalloc space > reserve and release") > Signed-off-by: Matthew Wilcox (Oracle) <[email protected]> > --- > fs/btrfs/ioctl.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c > index ac45f022b495..4d3b7e4ae53a 100644 > --- a/fs/btrfs/ioctl.c > +++ b/fs/btrfs/ioctl.c > @@ -1277,7 +1277,7 @@ static int cluster_pages_for_defrag(struct inode *inode, > page_cnt = min_t(u64, (u64)num_pages, (u64)file_end - start_index + 1); > > ret = btrfs_delalloc_reserve_space(BTRFS_I(inode), &data_reserved, > - start_index << PAGE_SHIFT, > + (loff_t)start_index << PAGE_SHIFT,
> - start_index << PAGE_SHIFT, > + (loff_t)start_index << PAGE_SHIFT, > - start_index << PAGE_SHIFT, > + (loff_t)start_index << PAGE_SHIFT, As this repeats 3 times I've added a variable. Patch added to misc-next, thanks.
