diff options
| author | Guo Weikang <guoweikang.kernel@gmail.com> | 2025-01-02 15:25:28 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-01-25 20:22:38 -0800 |
| commit | c6f239796b55dbc4225a6fca9f96232092b9df83 (patch) | |
| tree | d741398d6afb6bc2a736fae13ed589ceb5b679e7 /arch/alpha/kernel/core_cia.c | |
| parent | f8d4a6cabb74f82c37ccb7c5e9dc3fdad50393d4 (diff) | |
mm/memblock: add memblock_alloc_or_panic interface
Before SLUB initialization, various subsystems used memblock_alloc to
allocate memory. In most cases, when memory allocation fails, an
immediate panic is required. To simplify this behavior and reduce
repetitive checks, introduce `memblock_alloc_or_panic`. This function
ensures that memory allocation failures result in a panic automatically,
improving code readability and consistency across subsystems that require
this behavior.
[guoweikang.kernel@gmail.com: arch/s390: save_area_alloc default failure behavior changed to panic]
Link: https://lkml.kernel.org/r/20250109033136.2845676-1-guoweikang.kernel@gmail.com
Link: https://lore.kernel.org/lkml/Z2fknmnNtiZbCc7x@kernel.org/
Link: https://lkml.kernel.org/r/20250102072528.650926-1-guoweikang.kernel@gmail.com
Signed-off-by: Guo Weikang <guoweikang.kernel@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> [s390]
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/alpha/kernel/core_cia.c')
| -rw-r--r-- | arch/alpha/kernel/core_cia.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c index ca3d9c732b61..6e577228e175 100644 --- a/arch/alpha/kernel/core_cia.c +++ b/arch/alpha/kernel/core_cia.c @@ -331,10 +331,7 @@ cia_prepare_tbia_workaround(int window) long i; /* Use minimal 1K map. */ - ppte = memblock_alloc(CIA_BROKEN_TBIA_SIZE, 32768); - if (!ppte) - panic("%s: Failed to allocate %u bytes align=0x%x\n", - __func__, CIA_BROKEN_TBIA_SIZE, 32768); + ppte = memblock_alloc_or_panic(CIA_BROKEN_TBIA_SIZE, 32768); pte = (virt_to_phys(ppte) >> (PAGE_SHIFT - 1)) | 1; for (i = 0; i < CIA_BROKEN_TBIA_SIZE / sizeof(unsigned long); ++i) |