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Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1ujdeB-00000004Ijx-3J4F for linux-mm@kvack.org; Wed, 06 Aug 2025 12:53:35 +0000 Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1ujLNW-00000005T5D-0Ag4; Tue, 05 Aug 2025 17:23:10 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org Subject: [PATCH 05/11] slab: Use memdesc_flags_t Date: Tue, 5 Aug 2025 18:22:55 +0100 Message-ID: <20250805172307.1302730-6-willy@infradead.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250805172307.1302730-1-willy@infradead.org> References: <20250805172307.1302730-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 2B68816000F X-Rspam-User: X-Rspamd-Server: rspam09 X-Stat-Signature: i3j98tw1w9jyts4i67y8jhowsicsph5x X-HE-Tag: 1754484816-183774 X-HE-Meta: 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 rcnbGOif LAwG8iKaWwl4VlsDKb+oa8Sjz2yCJ6ZmRW4xCo8cdB/4M5HwHJXGYDvkyl0Zi5o5MGUhwA1F5HlKY9F6IjvOOd35kAwgiWPEGTXKFQlVmjOXQZmWvGxCekUqZQEZ2ycHf7xZ1LKlsJI6zQCT4YPWR3xBNwDXMmjjYoVuB+ARPAh/1TcxXvAZamGJb++MHDypp6cBSYmn+K4xnmtafInOgVdZMUel4X+UNStTY6H7SLKUtMLg= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The slab flags are memdesc flags and contain the same information in the upper bits as the other memdescs (like node ID). Signed-off-by: Matthew Wilcox (Oracle) --- mm/slab.h | 2 +- mm/slub.c | 18 +++++++++--------- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/mm/slab.h b/mm/slab.h index 248b34c839b7..7757331e7c80 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -50,7 +50,7 @@ typedef union { /* Reuses the bits in struct page */ struct slab { - unsigned long flags; + memdesc_flags_t flags; struct kmem_cache *slab_cache; union { diff --git a/mm/slub.c b/mm/slub.c index cf7c6032d5fd..0160af3b3943 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -657,17 +657,17 @@ static inline unsigned int slub_get_cpu_partial(struct kmem_cache *s) */ static inline bool slab_test_pfmemalloc(const struct slab *slab) { - return test_bit(SL_pfmemalloc, &slab->flags); + return test_bit(SL_pfmemalloc, &slab->flags.f); } static inline void slab_set_pfmemalloc(struct slab *slab) { - set_bit(SL_pfmemalloc, &slab->flags); + set_bit(SL_pfmemalloc, &slab->flags.f); } static inline void __slab_clear_pfmemalloc(struct slab *slab) { - __clear_bit(SL_pfmemalloc, &slab->flags); + __clear_bit(SL_pfmemalloc, &slab->flags.f); } /* @@ -675,12 +675,12 @@ static inline void __slab_clear_pfmemalloc(struct slab *slab) */ static __always_inline void slab_lock(struct slab *slab) { - bit_spin_lock(SL_locked, &slab->flags); + bit_spin_lock(SL_locked, &slab->flags.f); } static __always_inline void slab_unlock(struct slab *slab) { - bit_spin_unlock(SL_locked, &slab->flags); + bit_spin_unlock(SL_locked, &slab->flags.f); } static inline bool @@ -1046,7 +1046,7 @@ static void print_slab_info(const struct slab *slab) { pr_err("Slab 0x%p objects=%u used=%u fp=0x%p flags=%pGp\n", slab, slab->objects, slab->inuse, slab->freelist, - &slab->flags); + &slab->flags.f); } void skip_orig_size_check(struct kmem_cache *s, const void *object) @@ -2755,17 +2755,17 @@ static void discard_slab(struct kmem_cache *s, struct slab *slab) static inline bool slab_test_node_partial(const struct slab *slab) { - return test_bit(SL_partial, &slab->flags); + return test_bit(SL_partial, &slab->flags.f); } static inline void slab_set_node_partial(struct slab *slab) { - set_bit(SL_partial, &slab->flags); + set_bit(SL_partial, &slab->flags.f); } static inline void slab_clear_node_partial(struct slab *slab) { - clear_bit(SL_partial, &slab->flags); + clear_bit(SL_partial, &slab->flags.f); } /* -- 2.47.2