ratelimit: convert flags to int to save 8 bytes in size

Only bit 1 is used, making an unsigned long a total overkill.

This brings it from 40 to 32 bytes, which in turn shrinks user_struct from
136 to 128 bytes.  Since the latter is allocated with hwalign, this means
the total usage goes down from 192 to 128 bytes per object.

No functional changes.

Link: https://lkml.kernel.org/r/20240817123754.240924-1-mjguzik@gmail.com
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/ratelimit_types.h b/include/linux/ratelimit_types.h
index 002266693e506134049a79fcc5fb19d74ad567a8..765232ce0b5e9986bbf686155c1237edd6bb0a96 100644 (file)
--- a/include/linux/ratelimit_types.h
+++ b/include/linux/ratelimit_types.h
@@ -19,8 +19,8 @@ struct ratelimit_state {
        int             burst;
        int             printed;
        int             missed;
+       unsigned int    flags;
        unsigned long   begin;
-       unsigned long   flags;
 };
 
 #define RATELIMIT_STATE_INIT_FLAGS(name, interval_init, burst_init, flags_init) { \