On Dec 04, 2007 09:58 -0600, Eric Sandeen wrote:
> +static loff_t ext4_max_size(int blkbits)
> +{
> + loff_t res;
> + loff_t upper_limit = MAX_LFS_FILESIZE;
> +
> + /* small i_blocks in vfs inode? */
> + if (sizeof(blkcnt_t) < sizeof(u64)) {
It would probably be more future-proof by having a struct inode here and
using "if (sizeof(inode->i_blocks) < sizeof(__u64))".
> + upper_limit = (1LL << 32) - 1;
> +
> + /* total blocks in file system block size */
> + upper_limit >>= (blkbits - 9);
> + upper_limit <<= blkbits;
There is probably a cleaner way to do this, maybe:
upper_limit = (1LL << (32 + 9) - 1) & ~((1 << blkbits) - 1);
Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.
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