diff options
| author | Pankaj Raghav <[email protected]> | 2024-01-15 11:25:22 +0100 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-02-22 10:24:38 -0800 |
| commit | e03c16fb4af1dfc615a4e1f51be0d5fe5840b904 (patch) | |
| tree | 706962b309671906187803f1bb0e26be724443dc /include/linux/fpga/fpga-mgr.h | |
| parent | cabbb6d51e2af4fc2f3c763f58a12c628f228987 (diff) | |
readahead: use ilog2 instead of a while loop in page_cache_ra_order()
A while loop is used to adjust the new_order to be lower than the
ra->size. ilog2 could be used to do the same instead of using a loop.
ilog2 typically resolves to a bit scan reverse instruction. This is
particularly useful when ra->size is smaller than the 2^new_order as it
resolves in one instruction instead of looping to find the new_order.
No functional changes.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Pankaj Raghav <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions