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| author |   Dan Williams <dan.j.williams@intel.com> | 2020-01-13 18:22:43 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2020-01-20 08:14:29 +0100 |
| commit | 1db91035d01aa8bfa2350c00ccb63d629b4041ad (patch) | |
| tree | 8e71bbf16648063805b4a959510cd45852733bf2 /arch/x86/platform/efi/efi.c | |
| parent | efi: Add a flags parameter to efi_memory_map (diff) | |
| download | linux-dev-1db91035d01aa8bfa2350c00ccb63d629b4041ad.tar.xz linux-dev-1db91035d01aa8bfa2350c00ccb63d629b4041ad.zip | |
efi: Add tracking for dynamically allocated memmaps
In preparation for fixing efi_memmap_alloc() leaks, add support for
recording whether the memmap was dynamically allocated from slab,
memblock, or is the original physical memmap provided by the platform.
Given this tracking is established in efi_memmap_alloc() and needs to be
carried to efi_memmap_install(), use 'struct efi_memory_map_data' to
convey the flags.
Some small cleanups result from this reorganization, specifically the
removal of local variables for 'phys' and 'size' that are already
tracked in @data.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200113172245.27925-12-ardb@kernel.org
Diffstat (limited to 'arch/x86/platform/efi/efi.c')
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 4e46d2d24352..59f7f6d60cf6 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -304,10 +304,16 @@ static void __init efi_clean_memmap(void) } if (n_removal > 0) { - u64 size = efi.memmap.nr_map - n_removal; + struct efi_memory_map_data data = { + .phys_map = efi.memmap.phys_map, + .desc_version = efi.memmap.desc_version, + .desc_size = efi.memmap.desc_size, + .size = data.desc_size * (efi.memmap.nr_map - n_removal), + .flags = 0, + }; pr_warn("Removing %d invalid memory map entries.\n", n_removal); - efi_memmap_install(efi.memmap.phys_map, size); + efi_memmap_install(&data); } } |