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authorKees Cook <keescook@chromium.org>2023-05-12 14:22:12 -0700
committerKees Cook <keescook@chromium.org>2023-05-30 16:41:52 -0700
commit2f088dfc1878108748018af0d2e3748ba9eee1e9 (patch)
treeb8bca628f76deb84c5e84e6c369c023d4a70ba38 /fs/befs
parentd67790ddf0219aa0ad3e13b53ae0a7619b3425a2 (diff)
md/raid5: Convert stripe_head's "dev" to flexible array member
Replace old-style 1-element array of "dev" in struct stripe_head with modern C99 flexible array. In the future, we can additionally annotate it with the run-time size, found in the "disks" member. Cc: Song Liu <song@kernel.org> Cc: linux-raid@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Song Liu <song@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/lkml/20230522212114.gonna.589-kees@kernel.org/ --- It looks like this memory calculation: memory = conf->min_nr_stripes * (sizeof(struct stripe_head) + max_disks * ((sizeof(struct bio) + PAGE_SIZE))) / 1024; ... was already buggy (i.e. it included the single "dev" bytes in the result). However, I'm not entirely sure if that is the right analysis, since "dev" is not related to struct bio nor PAGE_SIZE?
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