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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-02-01 22:06:57 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-02-03 11:31:03 +0100 |
| commit | d3cac1f83c631b9fe5edaebcba49f6989bfff089 (patch) | |
| tree | 440d0dc52ed92bb33d5bd41a3a779ac74a6c385b /include/linux/efi.h | |
| parent | 70d2a3cf2f4ae2e93b7a661842d84c2b5132cee7 (diff) | |
| download | lwn-d3cac1f83c631b9fe5edaebcba49f6989bfff089.tar.gz lwn-d3cac1f83c631b9fe5edaebcba49f6989bfff089.zip | |
efi/runtime-wrappers: Add a nonblocking version of QueryVariableInfo()
This introduces a new runtime wrapper for the
QueryVariableInfo() UEFI Runtime Service, which gives up
immediately rather than spins on failure to grab the efi_runtime
spinlock.
This is required in the non-blocking path of the efi-pstore
code.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1454364428-494-4-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index 8706e0aabedc..ad1e177ba48e 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -849,6 +849,7 @@ extern struct efi { efi_set_variable_t *set_variable; efi_set_variable_t *set_variable_nonblocking; efi_query_variable_info_t *query_variable_info; + efi_query_variable_info_t *query_variable_info_nonblocking; efi_update_capsule_t *update_capsule; efi_query_capsule_caps_t *query_capsule_caps; efi_get_next_high_mono_count_t *get_next_high_mono_count; |