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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-07 17:23:00 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-07 17:23:00 +0200 |
| commit | dcf5b8a7ae4e3875878529597c05f8cac4121515 (patch) | |
| tree | 0d86567a8feacb35b2a62c1ba6cf6c2fe3be65de /fs/efivarfs/super.c | |
| parent | 864c971e923f55d3ff5ac3ebc87aab8108d30c8a (diff) | |
| parent | 7cfc41f8e80f11ffa8382ed1a505154ceffb79c7 (diff) | |
Merge v6.18.50linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/efivarfs/super.c')
| -rw-r--r-- | fs/efivarfs/super.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c index 6de97565d5f7..ca5004774c0b 100644 --- a/fs/efivarfs/super.c +++ b/fs/efivarfs/super.c @@ -89,12 +89,30 @@ static int efivarfs_statfs(struct dentry *dentry, struct kstatfs *buf) /* Some UEFI firmware does not implement QueryVariableInfo() */ storage_space = remaining_space = 0; if (efi_rt_services_supported(EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO)) { - status = efivar_query_variable_info(attr, &storage_space, - &remaining_space, - &max_variable_size); - if (status != EFI_SUCCESS && status != EFI_UNSUPPORTED) - pr_warn_ratelimited("query_variable_info() failed: 0x%lx\n", - status); + static DEFINE_RATELIMIT_STATE(_rs, 2 * HZ, 5); + static u64 storage, remaining; + static DEFINE_SPINLOCK(lock); + + if (!__ratelimit(&_rs)) { + ratelimit_set_flags(&_rs, RATELIMIT_MSG_ON_RELEASE); + + spin_lock(&lock); + storage_space = storage; + remaining_space = remaining; + spin_unlock(&lock); + } else { + status = efivar_query_variable_info(attr, &storage_space, + &remaining_space, + &max_variable_size); + if (status != EFI_SUCCESS && status != EFI_UNSUPPORTED) + pr_warn("query_variable_info() failed: 0x%lx\n", + status); + + spin_lock(&lock); + storage = storage_space; + remaining = remaining_space; + spin_unlock(&lock); + } } /* |