Reusing a msg frame quickly means it's still cache-hot. This yields a small but noticable performance improvement in a well-known database benchmark. This improvement is already present in the mpt3sas driver. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@xxxxxxxxx> --- drivers/message/fusion/mptbase.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 570b18a..ebc0af7 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1037,7 +1037,7 @@ mpt_free_msg_frame(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf) goto out; /* signature to know if this mf is freed */ mf->u.frame.linkage.arg1 = cpu_to_le32(0xdeadbeaf); - list_add_tail(&mf->u.frame.linkage.list, &ioc->FreeQ); + list_add(&mf->u.frame.linkage.list, &ioc->FreeQ); #ifdef MFCNT ioc->mfcnt--; #endif -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
