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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /drivers/input/input-poller.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
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 <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'drivers/input/input-poller.h')
| -rw-r--r-- | drivers/input/input-poller.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/input/input-poller.h b/drivers/input/input-poller.h new file mode 100644 index 000000000..e3fca0be1 --- /dev/null +++ b/drivers/input/input-poller.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _INPUT_POLLER_H +#define _INPUT_POLLER_H + +/* + * Support for polling mode for input devices. + */ +#include <linux/sysfs.h> + +struct input_dev_poller; + +void input_dev_poller_finalize(struct input_dev_poller *poller); +void input_dev_poller_start(struct input_dev_poller *poller); +void input_dev_poller_stop(struct input_dev_poller *poller); + +extern struct attribute_group input_poller_attribute_group; + +#endif /* _INPUT_POLLER_H */ |