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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?W3dlqlGO+l+ADrCdkHUd0PCHV9Cf7hg1NnMcCDMQn0wT0Nvh8PcH2gAn8Du9?= =?us-ascii?Q?6KppazRzlzTWRa9OltF8YXH2X8smzqgoTtiSR8bp+Q+7x1rVho7bNjlSa/Bk?= =?us-ascii?Q?jOmPdR4SgxRbIJxoU4wFxVTqFk9swxA+Py/o7ou1MWlFWv/OSW0iGGexHfab?= =?us-ascii?Q?La+6F+tecLZRxaLdfsn79d7i+ere7lWKgz5+4fHGiwZWZj6JnG2+TP+BbLkh?= =?us-ascii?Q?oepVqajngARXUIvC+vq8jNgDTHHWzjUrmnRLkCSxJGeubK1Z0+TmdSqgNyfH?= =?us-ascii?Q?5AF9nYyN3obfoN2y8RZyJG0ZtK0dJi+n10uZskQfj955euf1fO/yiipyyIRk?= =?us-ascii?Q?FRwdzTzzn5qCQAogdKFs1KQR57zW3GNvFyrHP2u+haQpMUHSwMRY8c1E9kB8?= =?us-ascii?Q?TO8OCuxrDSn3Z4bJOW2Tra3tqV15z/bEtIffDXmGYP7fv+DuwacAHdxcpDcX?= =?us-ascii?Q?fmv6IQeOiONVCTj7aS2Tagus7SJtWjNjHWGd9bcQR8MJx/acj9xjPX5is3Mz?= =?us-ascii?Q?EKKoZuNRk6Jzh6Zus/quPfdl0QRVAwx9XF8uXK5grhGbabVbkxr7jW97oQsM?= =?us-ascii?Q?rJXXuMu284pdrH0Z5f8cybpdo5lFDUDh6f0kAhS7w8JAqoVzzz+6KtYWrtV+?= =?us-ascii?Q?fTZjw0OsGprMvg576rQH0a6Nfp12D3JRgRCpnEjV+KrFZ24E4UW5pk19/q8j?= =?us-ascii?Q?RstFQ0Rgwoj/LP/IFV0KKu3Bjk+hCcWixPzf5R7hPudOT1jn0vG6mX9i5pWZ?= =?us-ascii?Q?F5Hlm2ikMDe9U7qXwLlDpfksf0swk3uwY7TdvJiUaFOrnKtZMvqEMF4upAq+?= =?us-ascii?Q?0kTrEElkKwxiAMQo5vmOki1de2Tvf5XqHJGnp6cp0AQDFcENFXVtpgHDLohI?= =?us-ascii?Q?cRflFtHPQXePTf4dscdACNgdgxcagSw6LsjyQpeyw2HIqO9UDdYrHlP5y362?= =?us-ascii?Q?v8YmnPVKQRKyr6bqtx7GeTswAXcOhf0hSQJGrBH5+bnscHZ3ADY5QE3cEuer?= =?us-ascii?Q?12KlxgJKWUDtZe2dLngg0bEvApsG+tYCA5rrsT+Ko2fqVDw4n7EmRnF5jL7U?= =?us-ascii?Q?ehg79spiUQVRYBrjbreTKAmEpmjFwszynOIoZZ5V/l4liKkQT5sJp3iuE500?= =?us-ascii?Q?gPkKlHSQAar5KpBEmmyUMgeAzQ1P3jB0uXgrhD5kwTNhrxL2qanLlfsNaXtJ?= =?us-ascii?Q?2zyFXFbPsVkeg4lXeIyLKIYef+HVsXECgZEjQixzndM4HTJydwdX2dCAdqtK?= =?us-ascii?Q?k2YSSu9olPGxsU+REf623KEj7XNcvni4iQSgUfRB2vtr7KaPV+Cnm4Vk9Z6l?= =?us-ascii?Q?fb9vDrC0oqmfbDVijXXJl3ACyRHJwliSI7KmWm/H8UsFbg=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 769a6192-3c26-46c4-3608-08d8dc4a61b7 X-MS-Exchange-CrossTenant-AuthSource: BYAPR15MB4136.namprd15.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Mar 2021 00:38:49.9771 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: PNVsqN0IX38i5xBPYkYeCjw4/P9xeJMm2UZcJbU/vJyP+BbQvLS1CHac5h5pjC92 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR15MB3556 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.761 definitions=2021-02-28_12:2021-02-26,2021-02-28 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 impostorscore=0 suspectscore=0 mlxlogscore=589 malwarescore=0 priorityscore=1501 adultscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 mlxscore=0 spamscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103010000 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 25, 2021 at 03:12:10PM -0800, Hugh Dickins wrote: > EINVAL was good for drawing the refresher's attention to a warning in > dmesg, but became very tiresome when running test suites scripted with > "set -e": an underflow from a bug in one feature would cause unrelated > tests much later to fail, just because their /proc/sys/vm/stat_refresh > touch failed with that error. Stop doing that. Totally agree! > > Signed-off-by: Hugh Dickins Acked-by: Roman Gushchin > --- > > mm/vmstat.c | 5 ----- > 1 file changed, 5 deletions(-) > > --- vmstat1/mm/vmstat.c 2021-02-25 11:50:36.000000000 -0800 > +++ vmstat2/mm/vmstat.c 2021-02-25 11:56:18.000000000 -0800 > @@ -1844,7 +1844,6 @@ int vmstat_refresh(struct ctl_table *tab > if (val < 0) { > pr_warn("%s: %s %ld\n", > __func__, zone_stat_name(i), val); > - err = -EINVAL; > } > } > #ifdef CONFIG_NUMA > @@ -1853,7 +1852,6 @@ int vmstat_refresh(struct ctl_table *tab > if (val < 0) { > pr_warn("%s: %s %ld\n", > __func__, numa_stat_name(i), val); > - err = -EINVAL; > } > } > #endif > @@ -1862,11 +1860,8 @@ int vmstat_refresh(struct ctl_table *tab > if (val < 0) { > pr_warn("%s: %s %ld\n", > __func__, node_stat_name(i), val); > - err = -EINVAL; > } > } > - if (err) > - return err; > if (write) > *ppos += *lenp; > else