zram: fix partial I/O gating on non-4K PAGE_SIZE#940
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IS_ENABLED() mainly for CONFIG_* symbols. ZRAM_PARTIAL_IO is a macro defined as 1 on non-4K builds, so IS_ENABLED(ZRAM_PARTIAL_IO) becomes IS_ENABLED(1) and evaluates false. Replace that check with PAGE_SIZE == 4096 and fold is_partial_io() into one helper so partial-I/O policy stays consistent. PAGE_SIZE is a build-time constant, so the PAGE_SIZE == 4096 checks fold away on the configurations where partial I/O is supported. Tested-on: Raspberry Pi 5 (BCM2712, 4 KiB and 16 KiB page kernels) Signed-off-by: Jianyue Wu <wujianyue000@gmail.com>
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Pull request for series with
subject: zram: fix partial I/O gating on non-4K PAGE_SIZE
version: 2
url: https://patchwork.kernel.org/project/linux-block/list/?series=1107309