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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/md/bcache/extents.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/md/bcache/extents.h')
| -rw-r--r-- | drivers/md/bcache/extents.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/md/bcache/extents.h b/drivers/md/bcache/extents.h new file mode 100644 index 000000000..4d667e05b --- /dev/null +++ b/drivers/md/bcache/extents.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _BCACHE_EXTENTS_H +#define _BCACHE_EXTENTS_H + +extern const struct btree_keys_ops bch_btree_keys_ops; +extern const struct btree_keys_ops bch_extent_keys_ops; + +struct bkey; +struct cache_set; + +void bch_extent_to_text(char *buf, size_t size, const struct bkey *k); +bool __bch_btree_ptr_invalid(struct cache_set *c, const struct bkey *k); +bool __bch_extent_invalid(struct cache_set *c, const struct bkey *k); + +#endif /* _BCACHE_EXTENTS_H */ |