From: Antoine Tenart <atenart@kernel.org>
To: davem@davemloft.net, kuba@kernel.org, alexander.duyck@gmail.com
Cc: Antoine Tenart <atenart@kernel.org>, netdev@vger.kernel.org
Subject: [PATCH net-next v2 01/12] net-sysfs: convert xps_cpus_show to bitmap_zalloc
Date: Mon, 8 Feb 2021 18:19:06 +0100 [thread overview]
Message-ID: <20210208171917.1088230-2-atenart@kernel.org> (raw)
In-Reply-To: <20210208171917.1088230-1-atenart@kernel.org>
Use bitmap_zalloc instead of zalloc_cpumask_var in xps_cpus_show to
align with xps_rxqs_show. This will improve maintenance and allow us to
factorize the two functions. The function should behave the same.
Signed-off-by: Antoine Tenart <atenart@kernel.org>
---
net/core/net-sysfs.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index daf502c13d6d..e052fc5f7e94 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1320,8 +1320,7 @@ static ssize_t xps_cpus_show(struct netdev_queue *queue,
int cpu, len, ret, num_tc = 1, tc = 0;
struct net_device *dev = queue->dev;
struct xps_dev_maps *dev_maps;
- cpumask_var_t mask;
- unsigned long index;
+ unsigned long *mask, index;
if (!netif_is_multiqueue(dev))
return -ENOENT;
@@ -1349,7 +1348,8 @@ static ssize_t xps_cpus_show(struct netdev_queue *queue,
}
}
- if (!zalloc_cpumask_var(&mask, GFP_KERNEL)) {
+ mask = bitmap_zalloc(nr_cpu_ids, GFP_KERNEL);
+ if (!mask) {
ret = -ENOMEM;
goto err_rtnl_unlock;
}
@@ -1367,7 +1367,7 @@ static ssize_t xps_cpus_show(struct netdev_queue *queue,
for (i = map->len; i--;) {
if (map->queues[i] == index) {
- cpumask_set_cpu(cpu, mask);
+ set_bit(cpu, mask);
break;
}
}
@@ -1377,8 +1377,8 @@ static ssize_t xps_cpus_show(struct netdev_queue *queue,
rtnl_unlock();
- len = snprintf(buf, PAGE_SIZE, "%*pb\n", cpumask_pr_args(mask));
- free_cpumask_var(mask);
+ len = bitmap_print_to_pagebuf(false, buf, mask, nr_cpu_ids);
+ bitmap_free(mask);
return len < PAGE_SIZE ? len : -EINVAL;
err_rtnl_unlock:
--
2.29.2
next prev parent reply other threads:[~2021-02-08 17:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-08 17:19 [PATCH net-next v2 00/12] net: xps: improve the xps maps handling Antoine Tenart
2021-02-08 17:19 ` Antoine Tenart [this message]
2021-02-08 17:19 ` [PATCH net-next v2 02/12] net-sysfs: store the return of get_netdev_queue_index in an unsigned int Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 03/12] net-sysfs: make xps_cpus_show and xps_rxqs_show consistent Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 04/12] net: embed num_tc in the xps maps Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 05/12] net: embed nr_ids " Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 06/12] net: assert the rtnl lock is held when calling __netif_set_xps_queue Antoine Tenart
2021-02-23 6:27 ` [net] 81bb8ff453: assertion_failed kernel test robot
2021-02-08 17:19 ` [PATCH net-next v2 07/12] net: remove the xps possible_mask Antoine Tenart
2021-02-08 21:43 ` Alexander Duyck
2021-02-09 8:47 ` Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 08/12] net: move the xps maps to an array Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 09/12] net-sysfs: remove the rtnl lock when accessing the xps maps Antoine Tenart
2021-02-08 22:20 ` Alexander Duyck
2021-02-09 9:12 ` Antoine Tenart
2021-02-09 9:20 ` Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 10/12] net: add an helper to copy xps maps to the new dev_maps Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 11/12] net: improve queue removal readability in __netif_set_xps_queue Antoine Tenart
2021-02-08 17:19 ` [PATCH net-next v2 12/12] net-sysfs: move the xps cpus/rxqs retrieval in a common function Antoine Tenart
2021-02-08 22:45 ` Alexander Duyck
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210208171917.1088230-2-atenart@kernel.org \
--to=atenart@kernel.org \
--cc=alexander.duyck@gmail.com \
--cc=davem@davemloft.net \
--cc=kuba@kernel.org \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).