On 4/11/06, Asim <asimkadav@xxxxxxxxx> wrote:
So if my s_blocksize = PAGE_CACHE_SIZE/2
then s_blocksize_bits will necessarily be (PAGE_CACHE_SHIFT -1) ?
Yes
How will things get impacted if i still stick to
s_blocksize_bits=PAGE_CACHE_SHIFT?Will I get an error or will a block
span across 2 pages and hence dismal system performance?
Most likely an data corruption i believe.(Filesystem creators are not causal programmers). Use sb_set_blocksize which takes a pointer to superblock structure and block size value and will do validity check and set blocksize and blocksize_bits appopriately rather setting these values directly.
S.Thayumanavar
