From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- Documentation/ABI/testing/sysfs-class-net-dsa | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-net-dsa (limited to 'Documentation/ABI/testing/sysfs-class-net-dsa') diff --git a/Documentation/ABI/testing/sysfs-class-net-dsa b/Documentation/ABI/testing/sysfs-class-net-dsa new file mode 100644 index 000000000..e2da26b44 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-net-dsa @@ -0,0 +1,14 @@ +What: /sys/class/net//dsa/tagging +Date: August 2018 +KernelVersion: 4.20 +Contact: netdev@vger.kernel.org +Description: + On read, this file returns a string indicating the type of + tagging protocol used by the DSA network devices that are + attached to this master interface. + On write, this file changes the tagging protocol of the + attached DSA switches, if this operation is supported by the + driver. Changing the tagging protocol must be done with the DSA + interfaces and the master interface all administratively down. + See the "name" field of each registered struct dsa_device_ops + for a list of valid values. -- cgit v1.3.1