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Mon, 26 Aug 2024 17:14:13 +0000 (GMT) Received: from epsmgmcp1.samsung.com (unknown [182.195.42.82]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20240826171413epsmtrp11fd9c5290d075794afe2600dcc86895a~vVqYbPfbL0078300783epsmtrp1B; Mon, 26 Aug 2024 17:14:13 +0000 (GMT) X-AuditID: b6c32a49-aabb8700000025a8-9a-66ccb7e77fe6 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgmcp1.samsung.com (Symantec Messaging Gateway) with SMTP id 6C.51.19367.5E7BCC66; Tue, 27 Aug 2024 02:14:13 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240826171409epsmtip20e565ee1cbc1d1a5846d9a8ded949674~vVqU042770841308413epsmtip2M; Mon, 26 Aug 2024 17:14:09 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com, James.Bottomley@HansenPartnership.com, brauner@kernel.org, jack@suse.cz, jaegeuk@kernel.org, jlayton@kernel.org, chuck.lever@oracle.com, bvanassche@acm.org Cc: linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, gost.dev@samsung.com, vishak.g@samsung.com, javier.gonz@samsung.com, Kanchan Joshi Subject: [PATCH v4 1/5] fs, block: refactor enum rw_hint Date: Mon, 26 Aug 2024 22:36:02 +0530 Message-Id: <20240826170606.255718-2-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240826170606.255718-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrGJsWRmVeSWpSXmKPExsWy7bCmhu7z7WfSDDr+s1qsvtvPZvH68CdG i2kffjJb/L/7nMni5oGdTBYrVx9lspg9vZnJ4sn6WcwWG/s5LB7f+cxu8XPZKnaLo//fsllM OnSN0WLvLW2LS4vcLfbsPcliMX/ZU3aL7us72CyWH//HZLHu9XsWi/Oz5rA7iHpcvuLtcf7e RhaPaZNOsXlcPlvqsWlVJ5vH5iX1HrsXfGby2H2zgc3j49NbLB59W1YxepxZcITd4/MmuQCe qGybjNTElNQihdS85PyUzLx0WyXv4HjneFMzA0NdQ0sLcyWFvMTcVFslF58AXbfMHKBPlRTK EnNKgUIBicXFSvp2NkX5pSWpChn5xSW2SqkFKTkFJgV6xYm5xaV56Xp5qSVWhgYGRqZAhQnZ Gdf/djEXvFOvWHhzLXsD4xWFLkZODgkBE4n99xaxdTFycQgJ7GaU6D/wlx3C+cQosanlMoKz 8vwjRpiW7/ePs0AkdjJKTFjdxAKSEBL4zCjxZ6FGFyMHB5uApsSFyaUgNSICzUwSG9f+AtvB LDCJSeLjg7VsIA3CAhYSLXs2gTWzCKhKNG+bzgTSzCtgKXH2lw3EMnmJmZe+s4PYnAJWEv8/ vAezeQUEJU7OfALWygxU07x1NjPIfAmBLxwSCw5cZ4VodpH4f/4AE4QtLPHq+BZ2CFtK4mV/ G5SdLfHg0QMWCLtGYsfmPqhee4mGPzdYQe5hBnpm/S59iF18Er2/n4CdKSHAK9HRJgRRrShx b9JTqE5xiYczlkDZHhKXfy2HhlUvo0TzlWWMExjlZyF5YRaSF2YhbFvAyLyKUTK1oDg3PbXY tMAwL7UcHrHJ+bmbGMEJXstzB+PdBx/0DjEycTAeYpTgYFYS4ZW7fDJNiDclsbIqtSg/vqg0 J7X4EKMpMIgnMkuJJucDc0xeSbyhiaWBiZmZmYmlsZmhkjjv69a5KUIC6YklqdmpqQWpRTB9 TBycUg1MLlvVZbtcrJlWhG2+ovWvUrW2l3f+5Fuy0W8+vUjtePC44OzEJ2XrfCyVOLeonU8U iPLaIm1Q0rr5x/32AB/pSq9FpdKcJb4yAlx7p506Zem7QWHFzJ9tMf/tVuWesK9/rf41L65B pX81/4XpeeWZMXWdKv3/SuMWy6npv9x4jX2p0Laromdcm6q9OyeFHTH9emQS85KVWRo7j5cv O5PifPfhWTOnWe0Hdkf8/iq9c3VPSeu0hyW7pkV2V2tu+Gnb8+VF15zpljo+PUc8P+UkW9V7 3lA2NA+4XTO3ONNW3sLq/f7kT7mvtrquzdh/4rbror0ZbW/Mo1Zk3Fy83A8Yzh37PpdH7G82 eH6zbpESS3FGoqEWc1FxIgA23QnseQQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrKIsWRmVeSWpSXmKPExsWy7bCSvO7T7WfSDN58UbVYfbefzeL14U+M FtM+/GS2+H/3OZPFzQM7mSxWrj7KZDF7ejOTxZP1s5gtNvZzWDy+85nd4ueyVewWR/+/ZbOY dOgao8XeW9oWlxa5W+zZe5LFYv6yp+wW3dd3sFksP/6PyWLd6/csFudnzWF3EPW4fMXb4/y9 jSwe0yadYvO4fLbUY9OqTjaPzUvqPXYv+MzksftmA5vHx6e3WDz6tqxi9Diz4Ai7x+dNcgE8 UVw2Kak5mWWpRfp2CVwZ1/92MRe8U69YeHMtewPjFYUuRk4OCQETie/3j7OA2EIC2xkl1t3U hoiLSzRf+8EOYQtLrPz3HMjmAqr5yCixqO0EWxcjBwebgKbEhcmlIHERgclMEk0Pt7CAOMwC c5gklnduZwbpFhawkGjZswlsA4uAqkTztulMIM28ApYSZ3/ZQCyQl5h56TvYMk4BK4n/H96z QxxkKbHyzHIwm1dAUOLkzCdgY5iB6pu3zmaewCgwC0lqFpLUAkamVYyiqQXFuem5yQWGesWJ ucWleel6yfm5mxjBMakVtINx2fq/eocYmTgYDzFKcDArifDKXT6ZJsSbklhZlVqUH19UmpNa fIhRmoNFSZxXOaczRUggPbEkNTs1tSC1CCbLxMEp1cBkmPY2Mi/R9G8gR1Bh95Ms904Nlp6o 9NMb/yuedz2UvvJAxdXJtgHKaUUayWb+6/KdL+8pelEcOzfz11+BIns//ZniNVbrF7C4cApu Zp68p+N6bYzc5+1rnjQw9V93XRqx05DP09LBgodzZqBE5O/Hdo6Bmj33sh8ebVTvanPqnTUx WYE14+lKq9O7qnc8Dz+oJMf+1+C+ndH5EK47M6xyOD2+9yYZrbwm/qfoSuqV1Cffv2w6uinV Jv1J+T6mmOi3HMLTttsLtH10yC95LXLRv+7j3y8/v6mnvLOt0VnGJ7rqTso56VWFK2I/MPR+ zZ4hkL7ioZ/CpIiKBywKC8Kl+F4oMwX+tvSeaXs4V4mlOCPRUIu5qDgRAE0F3PY4AwAA X-CMS-MailID: 20240826171413epcas5p3f62c2cc57b50d6df8fa66af5fe5996c5 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240826171413epcas5p3f62c2cc57b50d6df8fa66af5fe5996c5 References: <20240826170606.255718-1-joshi.k@samsung.com> Rename enum rw_hint to rw_life_hint. Change i_write_hint (in inode), bi_write_hint (in bio) and write_hint (in request) to use u8 data-type rather than this enum. This is in preparation to introduce a new write hint type. Signed-off-by: Kanchan Joshi --- fs/buffer.c | 4 ++-- fs/f2fs/f2fs.h | 4 ++-- fs/f2fs/segment.c | 4 ++-- include/linux/blk-mq.h | 2 +- include/linux/blk_types.h | 2 +- include/linux/fs.h | 2 +- include/linux/rw_hint.h | 9 ++------- 7 files changed, 11 insertions(+), 16 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index e55ad471c530..0c6bc9b7d4ad 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -55,7 +55,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list); static void submit_bh_wbc(blk_opf_t opf, struct buffer_head *bh, - enum rw_hint hint, struct writeback_control *wbc); + u8 hint, struct writeback_control *wbc); #define BH_ENTRY(list) list_entry((list), struct buffer_head, b_assoc_buffers) @@ -2778,7 +2778,7 @@ static void end_bio_bh_io_sync(struct bio *bio) } static void submit_bh_wbc(blk_opf_t opf, struct buffer_head *bh, - enum rw_hint write_hint, + u8 write_hint, struct writeback_control *wbc) { const enum req_op op = opf & REQ_OP_MASK; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index ac19c61f0c3e..b3022dc94a1f 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3756,8 +3756,8 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); int __init f2fs_create_segment_manager_caches(void); void f2fs_destroy_segment_manager_caches(void); -int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_hint hint); -enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, +int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_life_hint hint); +enum rw_life_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, enum page_type type, enum temp_type temp); unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi, unsigned int segno); diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 78c3198a6308..794050f4cdbf 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -3381,7 +3381,7 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range) return err; } -int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_hint hint) +int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_life_hint hint) { if (F2FS_OPTION(sbi).active_logs == 2) return CURSEG_HOT_DATA; @@ -3425,7 +3425,7 @@ int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_hint hint) * WRITE_LIFE_MEDIUM " WRITE_LIFE_MEDIUM * WRITE_LIFE_LONG " WRITE_LIFE_LONG */ -enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, +enum rw_life_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, enum page_type type, enum temp_type temp) { switch (type) { diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 8d304b1d16b1..1e5ce84ccf0a 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -159,7 +159,7 @@ struct request { struct blk_crypto_keyslot *crypt_keyslot; #endif - enum rw_hint write_hint; + u8 write_hint; unsigned short ioprio; enum mq_rq_state state; diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 36ed96133217..446c847bb3b3 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -216,7 +216,7 @@ struct bio { */ unsigned short bi_flags; /* BIO_* below */ unsigned short bi_ioprio; - enum rw_hint bi_write_hint; + u8 bi_write_hint; blk_status_t bi_status; atomic_t __bi_remaining; diff --git a/include/linux/fs.h b/include/linux/fs.h index fb0426f349fc..f9a7a2a80661 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -674,7 +674,7 @@ struct inode { spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ unsigned short i_bytes; u8 i_blkbits; - enum rw_hint i_write_hint; + u8 i_write_hint; blkcnt_t i_blocks; #ifdef __NEED_I_SIZE_ORDERED diff --git a/include/linux/rw_hint.h b/include/linux/rw_hint.h index 309ca72f2dfb..e17fd9fa65d4 100644 --- a/include/linux/rw_hint.h +++ b/include/linux/rw_hint.h @@ -7,18 +7,13 @@ #include /* Block storage write lifetime hint values. */ -enum rw_hint { +enum rw_life_hint { WRITE_LIFE_NOT_SET = RWH_WRITE_LIFE_NOT_SET, WRITE_LIFE_NONE = RWH_WRITE_LIFE_NONE, WRITE_LIFE_SHORT = RWH_WRITE_LIFE_SHORT, WRITE_LIFE_MEDIUM = RWH_WRITE_LIFE_MEDIUM, WRITE_LIFE_LONG = RWH_WRITE_LIFE_LONG, WRITE_LIFE_EXTREME = RWH_WRITE_LIFE_EXTREME, -} __packed; - -/* Sparse ignores __packed annotations on enums, hence the #ifndef below. */ -#ifndef __CHECKER__ -static_assert(sizeof(enum rw_hint) == 1); 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Tue, 27 Aug 2024 02:14:18 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p1.samsung.com (KnoxPortal) with ESMTPA id 20240826171417epcas5p1c6dbe318c43324116647dae2129b7eb3~vVqcNuU9j0392603926epcas5p1p; Mon, 26 Aug 2024 17:14:17 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240826171417epsmtrp2d498a352e437e2c14cc2c22ecf314eff~vVqcMys6o3048030480epsmtrp2i; Mon, 26 Aug 2024 17:14:17 +0000 (GMT) X-AuditID: b6c32a50-ef5fe70000004d97-80-66ccb7ea69f1 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 5C.3E.08964.9E7BCC66; Tue, 27 Aug 2024 02:14:17 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240826171413epsmtip2407f4dc023aef06fcca161d1f824ce43~vVqYlY3Pe0834608346epsmtip2O; Mon, 26 Aug 2024 17:14:13 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com, James.Bottomley@HansenPartnership.com, brauner@kernel.org, jack@suse.cz, jaegeuk@kernel.org, jlayton@kernel.org, chuck.lever@oracle.com, bvanassche@acm.org Cc: linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, gost.dev@samsung.com, vishak.g@samsung.com, javier.gonz@samsung.com, Kanchan Joshi Subject: [PATCH v4 2/5] fcntl: rename rw_hint_* to rw_life_hint_* Date: Mon, 26 Aug 2024 22:36:03 +0530 Message-Id: <20240826170606.255718-3-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240826170606.255718-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01Te0xTVxjfubfcFmPNHS9PukzwRk2AgXSWejCUjUHmTWBJo4uZ4gKFXgqh tLWPbSK6GpxxRWBW8IFusNkVLZFnN1AsMBgqhMVN2HiMlwxkg2F5SnAIa2nd/O/3/b7f933n 951zOLjXnwSPk67QMmqFRE4RG1jftwYGhUzWdaaGzS6zUflgAYGmWucAujCzjKO1wQkM9TXf wtCN8jYMXbmYg6GxymIcVRdw0B8D82y0bLawUdvaNIGMLb8BZOsPRg+/2Yvu2NpZqMQ8zka5 PfUEKru3iqGKKTsLPSi+yn7bl+7qjqMfDFWz6AvGDoLu+klH11g+J+ha06d0Q+k8Rjf06Ql6 dryfRedbLYDuLP2RTc/XbBFvPJQRmcZIpIw6gFGkKKXpCpmIitufGJMYLgzjh/Aj0G4qQCHJ ZERUbLw45N10ucMpFfCRRK5zUGKJRkPtjIpUK3VaJiBNqdGKKEYllasEqlCNJFOjU8hCFYx2 Dz8s7M1whzApI+3W7R/YqifkJ/3TvYQedHMNwJMDSQGsHjYAA9jA8SLvANjzuJFwBXMArpqL 2K7gKYALPSXEi5LFbquHK2ED8Jepk27VPID9dT2ODIdDkIHw5/M6J+9D5mCw+uaz9b44acTg 7MhNwinyJqNhlUno7Moit8NnV+0sJ+aSEdCWOwdc0/zh5YdLbCf2JPfAtRk726V5FbZfHlvX 4w5NzndXcGd/SK5x4JmKAbarOBaW5i+6j+0NJ+9Z3TwPzj+xufkMODI6wnLhbFhfm+/hwm9B /UrvuhncYaby9k7XrE0w758xzElDkgvPnPZyqbfCIeO4u3IzfHTJ5MY0LD9dhLn2kwdgR1Mf 9gXwL37JQvFLFor/n1YKcAvgMSpNpoxJCVfxQxTMx/9dbYoyswasP/kgcT0or3oe2gIwDmgB kINTPtwtXe2pXlyp5GgWo1YmqnVyRtMCwh1LPofzfFOUjj+j0CbyBRFhAqFQKIjYJeRTm7lT n30p9SJlEi2TwTAqRv2iDuN48vSYXMYrPDylMMe3W2WvNG6ffGwkRoriizS6OCJhcLluOqUh q/BEY83Zi6bRCqqk71DZwWOvLVpOZX9rP9UafbdAKho+jgX/fTDuHDI0rRzdZr5vN+iphHGZ PXLh99QDMW8kd3oXHnkeawod35R1LMOn6YMb7w+1Lw1HJe3Ajjwa8c00iBPLmnFT7u5Kv/OX KhfwkNS9QkFOi35maIywl5yNtgXHnFw5vk8b3xzrJ1r1r772dWDUh9GtMR1iUf5fvPeWTEkT PX0r9Xn04Mx9j63i2oEVv962X0drVlXWA9etydy70yf2b/TP+mrCHvE6siQbdyWkU9zD7zxN mNRWZV+7bqZYmjQJPwhXayT/Akz0UW97BAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrBIsWRmVeSWpSXmKPExsWy7bCSvO7L7WfSDN7s1rBYfbefzeL14U+M FtM+/GS2+H/3OZPFzQM7mSxWrj7KZDF7ejOTxZP1s5gtNvZzWDy+85nd4ueyVewWR/+/ZbOY dOgao8XeW9oWlxa5W+zZe5LFYv6yp+wW3dd3sFksP/6PyWLd6/csFudnzWF3EPW4fMXb4/y9 jSwe0yadYvO4fLbUY9OqTjaPzUvqPXYv+MzksftmA5vHx6e3WDz6tqxi9Diz4Ai7x+dNcgE8 UVw2Kak5mWWpRfp2CVwZO3cdZC94J1Bx6+0NtgbGK7xdjJwcEgImEl+vbGEFsYUEdjNKbHpa DREXl2i+9oMdwhaWWPnvOTtEzUdGiedf+bsYOTjYBDQlLkwu7WLk4hARmMwk0fRwCwuIwyww h0lieed2ZpAiYQFHiQ1LzEB6WQRUJX7Nec8CYvMKWErs7f7ECDFfXmLmpe9g8zkFrCT+f3gP tctSYuWZ5ewQ9YISJ2c+AetlBqpv3jqbeQKjwCwkqVlIUgsYmVYxSqYWFOem5xYbFhjmpZbr FSfmFpfmpesl5+duYgRHppbmDsbtqz7oHWJk4mA8xCjBwawkwit3+WSaEG9KYmVValF+fFFp TmrxIUZpDhYlcV7xF70pQgLpiSWp2ampBalFMFkmDk6pBqaI361bzdYefGvotaUs0pcxS1Zz X6zrROkJOuGZtVszXeapXojrEYj2upp1teTdynKVzLKYa3o/lrAcedEWaHdJ/HLAJ59nXCmz xTYZP3345lLWgsVzXp8Snez4WvDx72/vtjTfEJPT+bdoZ+rjhwwrg/fM85hv90L0cs2NT34K pfq8em++RTv+vs8Z7H45UtnC6cPnXi+2dqfP2iekMu0X2/dfzUxq2CvvMCVLeT1HtNXVlze4 AiSyF4i6/NucvXyB5Ro5Y5EZ0tOVXL0X+rlG2h6eF2djdiDoRmLDvqrKdfucV6bu9FW7fKp6 +dPqHpGia0t+W374HKJ1w2ndooVXRc/fPpe9/E+seVRvpLsSS3FGoqEWc1FxIgAB0w2bOwMA AA== X-CMS-MailID: 20240826171417epcas5p1c6dbe318c43324116647dae2129b7eb3 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240826171417epcas5p1c6dbe318c43324116647dae2129b7eb3 References: <20240826170606.255718-1-joshi.k@samsung.com> F_GET/SET_RW_HINT fcntl handlers query/set write life hints. Rename the handlers/helpers to be explicit that write life hints are being handled. This is in preparation to introduce a new interface that supports more than one type of write hint. Signed-off-by: Kanchan Joshi --- fs/fcntl.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/fcntl.c b/fs/fcntl.c index 300e5d9ad913..46cf08f67278 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -269,7 +269,7 @@ static int f_getowner_uids(struct file *filp, unsigned long arg) } #endif -static bool rw_hint_valid(u64 hint) +static bool rw_life_hint_valid(u64 hint) { BUILD_BUG_ON(WRITE_LIFE_NOT_SET != RWH_WRITE_LIFE_NOT_SET); BUILD_BUG_ON(WRITE_LIFE_NONE != RWH_WRITE_LIFE_NONE); @@ -291,7 +291,7 @@ static bool rw_hint_valid(u64 hint) } } -static long fcntl_get_rw_hint(struct file *file, unsigned int cmd, +static long fcntl_get_rw_life_hint(struct file *file, unsigned int cmd, unsigned long arg) { struct inode *inode = file_inode(file); @@ -303,7 +303,7 @@ static long fcntl_get_rw_hint(struct file *file, unsigned int cmd, return 0; } -static long fcntl_set_rw_hint(struct file *file, unsigned int cmd, +static long fcntl_set_rw_life_hint(struct file *file, unsigned int cmd, unsigned long arg) { struct inode *inode = file_inode(file); @@ -312,7 +312,7 @@ static long fcntl_set_rw_hint(struct file *file, unsigned int cmd, if (copy_from_user(&hint, argp, sizeof(hint))) return -EFAULT; - if (!rw_hint_valid(hint)) + if (!rw_life_hint_valid(hint)) return -EINVAL; WRITE_ONCE(inode->i_write_hint, hint); @@ -449,10 +449,10 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, err = memfd_fcntl(filp, cmd, argi); break; case F_GET_RW_HINT: - err = fcntl_get_rw_hint(filp, cmd, arg); + err = fcntl_get_rw_life_hint(filp, cmd, arg); break; case F_SET_RW_HINT: - err = fcntl_set_rw_hint(filp, cmd, arg); + err = fcntl_set_rw_life_hint(filp, cmd, arg); break; default: break; From patchwork Mon Aug 26 17:06:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchan Joshi X-Patchwork-Id: 823874 Received: from mailout2.samsung.com (mailout2.samsung.com [203.254.224.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 21A913B782 for ; 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Tue, 27 Aug 2024 02:14:21 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240826171417epsmtip2300cf238d11e054982f5ca67e497e4ab~vVqcWaisS0040200402epsmtip2e; Mon, 26 Aug 2024 17:14:17 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com, James.Bottomley@HansenPartnership.com, brauner@kernel.org, jack@suse.cz, jaegeuk@kernel.org, jlayton@kernel.org, chuck.lever@oracle.com, bvanassche@acm.org Cc: linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, gost.dev@samsung.com, vishak.g@samsung.com, javier.gonz@samsung.com, Kanchan Joshi , Nitesh Shetty Subject: [PATCH v4 3/5] fcntl: add F_{SET/GET}_RW_HINT_EX Date: Mon, 26 Aug 2024 22:36:04 +0530 Message-Id: <20240826170606.255718-4-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240826170606.255718-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDJsWRmVeSWpSXmKPExsWy7bCmpu677WfSDL7/0rRYfbefzeL14U+M FtM+/GS2+H/3OZPFzQM7mSxWrj7KZDF7ejOTxZP1s5gtNvZzWDy+85nd4ueyVewWR/+/ZbOY dOgao8XeW9oWlxa5W+zZe5LFYv6yp+wW3dd3sFksP/6PyWLb7/nMFutev2exOD9rDruDmMfl K94e5+9tZPGYNukUm8fls6Uem1Z1snlsXlLvsXvBZyaP3Tcb2Dw+Pr3F4tG3ZRWjx5kFR9g9 Pm+SC+CJyrbJSE1MSS1SSM1Lzk/JzEu3VfIOjneONzUzMNQ1tLQwV1LIS8xNtVVy8QnQdcvM AXpXSaEsMacUKBSQWFyspG9nU5RfWpKqkJFfXGKrlFqQklNgUqBXnJhbXJqXrpeXWmJlaGBg ZApUmJCdMefBNOaCv1oV7aseMjYwvlHqYuTkkBAwkdhzaQtzFyMXh5DAbkaJ0x3HWSGcT4wS jRNfMsE5b1Z8Y4VpeTX7LlTVTkaJqb3tbBDOZ0aJc6eaGLsYOTjYBDQlLkwuBYmLCDQzSWxc +wusiFlgN5PEgq7/zCBFwgKWEnseWIJMZRFQlTj/dTY7iM0LFG6fvZwJYpu8xMxL38HinAJW Ev8/vIeqEZQ4OfMJC4jNDFTTvHU22BMSAj84JF5suQB1qovEvs7bLBC2sMSr41vYIWwpic/v 9rJB2NkSDx49gKqpkdixuQ+q116i4c8NVpA7mYGeWb9LH2IXn0Tv7ydMIGEJAV6JjjYhiGpF iXuTnkJ1iks8nLEEyvaQuPv3CzSwehkl5h9/wzKBUX4WkhdmIXlhFsK2BYzMqxglUwuKc9NT i00LDPNSy+Exm5yfu4kRnOy1PHcw3n3wQe8QIxMH4yFGCQ5mJRFeucsn04R4UxIrq1KL8uOL SnNSiw8xmgLDeCKzlGhyPjDf5JXEG5pYGpiYmZmZWBqbGSqJ875unZsiJJCeWJKanZpakFoE 08fEwSnVwKSau+vF5vCFhwqDZ+xtEFvmXm0p9qyzK0/VUGNvwLugNIVs/b33/vM6hve4scz6 mrfgDmNk+9RjnveaZ6s7HJaOf/Wq2+OZisu3OUu+KjTLLutawfzqOytXosyEpY++NDwQuFyT q3Ot3kdYQ1z88iTJv+cm9M0NvSrhu/+IoHL1rwrmW/m/NX4cnH3S8mmMQ5WRrOyeX2823Dct r1ofcPg4x7l15xu5hGYzCl9VmRRZt/0f2zs5U+Vsv5T56edK1hceW97A8HO+S8nWYwILfcOq 88+H12jUWF/YvzHprceeV4ohP6tbNG/nvHd1UGwJTCnVju7MPlTV/ij5tOyBz1vOBlSvs/xk t4JdjctpqhJLcUaioRZzUXEiAMWP8nd/BAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNIsWRmVeSWpSXmKPExsWy7bCSvO7b7WfSDC5uN7VYfbefzeL14U+M FtM+/GS2+H/3OZPFzQM7mSxWrj7KZDF7ejOTxZP1s5gtNvZzWDy+85nd4ueyVewWR/+/ZbOY dOgao8XeW9oWlxa5W+zZe5LFYv6yp+wW3dd3sFksP/6PyWLb7/nMFutev2exOD9rDruDmMfl K94e5+9tZPGYNukUm8fls6Uem1Z1snlsXlLvsXvBZyaP3Tcb2Dw+Pr3F4tG3ZRWjx5kFR9g9 Pm+SC+CJ4rJJSc3JLEst0rdL4MqY82Aac8FfrYr2VQ8ZGxjfKHUxcnJICJhIvJp9l7WLkYtD SGA7o8Tb47uZIBLiEs3XfrBD2MISK/89Z4co+sgoMa+tG6iIg4NNQFPiwuRSkLiIwGQmiaaH W1hAHGaBo0wSW2fuYwUpEhawlNjzwBJkEIuAqsT5r7PBhvIChdtnL4daJi8x89J3sDingJXE /w/vwWwhoJqVZ5ZD1QtKnJz5hAXEZgaqb946m3kCo8AsJKlZSFILGJlWMYqmFhTnpucmFxjq FSfmFpfmpesl5+duYgTHp1bQDsZl6//qHWJk4mA8xCjBwawkwit3+WSaEG9KYmVValF+fFFp TmrxIUZpDhYlcV7lnM4UIYH0xJLU7NTUgtQimCwTB6dUA5NwpdW8GdZbF6cERizt02P/Xx5j s+M8l3SYaErctgkG4R7rvUqUXU1cn4TJdrYu1l/3ZNGr83cC211mP44qNAqeeIThr7meRFzW 1PnRUwpqJ1Ws+1/V+O+P4HHLa7Ud/q0TfExbt/K0FB5dZxD8TXiHbWiftb/2J0Zz59D71ysa 5n93lq8tnZW0VUnndY/U3vDl+532KhvN/8WWFLueuyxp02KZe+K3tslvkn3Md3fZq7m50tHB bp7Zf0+/2J8pe/rYtHjnPT8vyHFMEVm84qlxfrXSUoc76ltC10Ve3im5JMkjoiox/dWt6AmH a0V1NQQvx2U47XxZlzOL5/WRGVcqXWZ9brD63/qOK2jtCSWW4oxEQy3mouJEAD2lDs0+AwAA X-CMS-MailID: 20240826171422epcas5p2fa8f07dfee9395745f1833a17fd89ae0 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240826171422epcas5p2fa8f07dfee9395745f1833a17fd89ae0 References: <20240826170606.255718-1-joshi.k@samsung.com> This is similar to existing F_{SET/GET}_RW_HINT but more generic/extensible. F_SET/GET_RW_HINT_EX take a pointer to a struct rw_hint_ex as argument: struct rw_hint_ex { __u8 type; __u8 pad[7]; __u64 val; }; With F_SET_RW_HINT_EX, the user passes the hint type and its value. Hint type can be either life hint (TYPE_RW_LIFE_HINT) or placement hint (TYPE_RW_PLACEMENT_HINT). The interface allows to add more hint types in future. Valid values for life hints are same as enforced by existing fcntl(F_SET_RW_HINT). Valid values for placement hints are between 0 to 127, both inclusive. The inode retains either the life hint or the placement hint, whichever is set later. The set hint type and its value can be queried by F_GET_RW_HINT_EX. The i_write_hint field of the inode is a 1-byte field. Use the most significant bit as the hint type. This bit is set for placement hint. For life hint, this bit remains zero. Signed-off-by: Kanchan Joshi Signed-off-by: Nitesh Shetty --- fs/fcntl.c | 67 ++++++++++++++++++++++++++++++++++++++ include/linux/rw_hint.h | 13 ++++++++ include/uapi/linux/fcntl.h | 14 ++++++++ 3 files changed, 94 insertions(+) diff --git a/fs/fcntl.c b/fs/fcntl.c index 46cf08f67278..d82fd4142104 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -291,6 +291,14 @@ static bool rw_life_hint_valid(u64 hint) } } +static inline bool rw_placement_hint_valid(u64 val) +{ + if (val <= MAX_PLACEMENT_HINT_VAL) + return true; + + return false; +} + static long fcntl_get_rw_life_hint(struct file *file, unsigned int cmd, unsigned long arg) { @@ -327,6 +335,59 @@ static long fcntl_set_rw_life_hint(struct file *file, unsigned int cmd, return 0; } +static long fcntl_get_rw_hint_ex(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct rw_hint_ex __user *rw_hint_ex_p = (void __user *)arg; + struct rw_hint_ex rwh = {}; + struct inode *inode = file_inode(file); + u8 hint = READ_ONCE(inode->i_write_hint); + + rwh.type = WRITE_HINT_TYPE(hint); + rwh.val = WRITE_HINT_VAL(hint); + + if (copy_to_user(rw_hint_ex_p, &rwh, sizeof(rwh))) + return -EFAULT; + + return 0; +} + +static long fcntl_set_rw_hint_ex(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct rw_hint_ex __user *rw_hint_ex_p = (void __user *)arg; + struct rw_hint_ex rwh; + struct inode *inode = file_inode(file); + u64 hint; + int i; + + if (copy_from_user(&rwh, rw_hint_ex_p, sizeof(rwh))) + return -EFAULT; + for (i = 0; i < ARRAY_SIZE(rwh.pad); i++) + if (rwh.pad[i]) + return -EINVAL; + switch (rwh.type) { + case TYPE_RW_LIFE_HINT: + if (!rw_life_hint_valid(rwh.val)) + return -EINVAL; + hint = rwh.val; + break; + case TYPE_RW_PLACEMENT_HINT: + if (!rw_placement_hint_valid(rwh.val)) + return -EINVAL; + hint = PLACEMENT_HINT_TYPE | rwh.val; + break; + default: + return -EINVAL; + } + + WRITE_ONCE(inode->i_write_hint, hint); + if (file->f_mapping->host != inode) + WRITE_ONCE(file->f_mapping->host->i_write_hint, hint); + + return 0; +} + /* Is the file descriptor a dup of the file? */ static long f_dupfd_query(int fd, struct file *filp) { @@ -454,6 +515,12 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg, case F_SET_RW_HINT: err = fcntl_set_rw_life_hint(filp, cmd, arg); break; + case F_GET_RW_HINT_EX: + err = fcntl_get_rw_hint_ex(filp, cmd, arg); + break; + case F_SET_RW_HINT_EX: + err = fcntl_set_rw_hint_ex(filp, cmd, arg); + break; default: break; } diff --git a/include/linux/rw_hint.h b/include/linux/rw_hint.h index e17fd9fa65d4..611c51d23d96 100644 --- a/include/linux/rw_hint.h +++ b/include/linux/rw_hint.h @@ -16,4 +16,17 @@ enum rw_life_hint { WRITE_LIFE_EXTREME = RWH_WRITE_LIFE_EXTREME, }; +#define WRITE_HINT_TYPE_BIT BIT(7) +#define WRITE_HINT_VAL_MASK (WRITE_HINT_TYPE_BIT - 1) +#define WRITE_HINT_TYPE(h) (((h) & WRITE_HINT_TYPE_BIT) ? \ + TYPE_RW_PLACEMENT_HINT : TYPE_RW_LIFE_HINT) +#define WRITE_HINT_VAL(h) ((h) & WRITE_HINT_VAL_MASK) + +#define WRITE_PLACEMENT_HINT(h) (((h) & WRITE_HINT_TYPE_BIT) ? \ + WRITE_HINT_VAL(h) : 0) +#define WRITE_LIFE_HINT(h) (((h) & WRITE_HINT_TYPE_BIT) ? \ + 0 : WRITE_HINT_VAL(h)) + +#define PLACEMENT_HINT_TYPE WRITE_HINT_TYPE_BIT +#define MAX_PLACEMENT_HINT_VAL WRITE_HINT_VAL_MASK #endif /* _LINUX_RW_HINT_H */ diff --git a/include/uapi/linux/fcntl.h b/include/uapi/linux/fcntl.h index c0bcc185fa48..dfe77fa86776 100644 --- a/include/uapi/linux/fcntl.h +++ b/include/uapi/linux/fcntl.h @@ -57,6 +57,8 @@ #define F_SET_RW_HINT (F_LINUX_SPECIFIC_BASE + 12) #define F_GET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 13) #define F_SET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 14) +#define F_GET_RW_HINT_EX (F_LINUX_SPECIFIC_BASE + 15) +#define F_SET_RW_HINT_EX (F_LINUX_SPECIFIC_BASE + 16) /* * Valid hint values for F_{GET,SET}_RW_HINT. 0 is "not set", or can be @@ -76,6 +78,18 @@ */ #define RWF_WRITE_LIFE_NOT_SET RWH_WRITE_LIFE_NOT_SET +enum rw_hint_type { + TYPE_RW_LIFE_HINT, + TYPE_RW_PLACEMENT_HINT +}; 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Tue, 27 Aug 2024 02:14:27 +0900 (KST) Received: from epsmtrp1.samsung.com (unknown [182.195.40.13]) by epcas5p1.samsung.com (KnoxPortal) with ESMTPA id 20240826171426epcas5p13c5ffabd6a05ee357bf4e9f78bc5de44~vVqkF41jA0279002790epcas5p1G; Mon, 26 Aug 2024 17:14:26 +0000 (GMT) Received: from epsmgmc1p1new.samsung.com (unknown [182.195.42.40]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20240826171426epsmtrp1c1c4ac8931df3d1325ad85cb6dd79fd8~vVqkE3uYz0078300783epsmtrp1H; Mon, 26 Aug 2024 17:14:26 +0000 (GMT) X-AuditID: b6c32a49-a57ff700000025a8-ad-66ccb7f3091c Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgmc1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id F7.B2.07567.1F7BCC66; Tue, 27 Aug 2024 02:14:26 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240826171422epsmtip2e4bb622f4f1ead189d76183395aa4693~vVqgSFzYe0841308413epsmtip2O; Mon, 26 Aug 2024 17:14:21 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com, James.Bottomley@HansenPartnership.com, brauner@kernel.org, jack@suse.cz, jaegeuk@kernel.org, jlayton@kernel.org, chuck.lever@oracle.com, bvanassche@acm.org Cc: linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, gost.dev@samsung.com, vishak.g@samsung.com, javier.gonz@samsung.com, Nitesh Shetty , Kanchan Joshi Subject: [PATCH v4 4/5] sd: limit to use write life hints Date: Mon, 26 Aug 2024 22:36:05 +0530 Message-Id: <20240826170606.255718-5-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240826170606.255718-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01Ta0xTZxjOudAe2LodLupHswh0mQY3oJ1t/SAyXEQ9C2ZilhjjlmADBwqU tullE3djY8N5qQiCSEHBG0pxMK6iXEQ6JAwoU1AEKbcBRjrGpZuOQehOOXXz3/O+3/O8z/e8 3zkE5vU7h08kKnW0RilTCDgeeJ05cGOQ/UZXvLBw7A1YZs3kQJt5AYFn5hYx6LA+QeFAy00U lpa1obAgLx2FExVGDFZmEvC3ITsXLpaYuLDNMcOB2a0PEdg0+Da8f3EXbGzqwGFRySQXHu+v 58Cr7SsorFsqwmC5bRaHPcZC7ra1VG9fFNUzXIlTZ7J/4VC93XqqynSUQ1Vf/ppqKLajVMNA GoeanxzEqZM1JoTqKv6ZS9mr1ke/eiB5q5yWxdEaf1oZq4pLVCaEC6I+itkeI5EKRUGiULhF 4K+UpdDhgsjd0UE7ExVMXIH/pzKFnmlFy7RaQch7WzUqvY72l6u0unABrY5TqMXqYK0sRatX JgQraV2YSCh8V8IQDybLpyzTuHrM49Bg00U8DbERxxB3ApBiUNTZzTmGeBBeZAMCzJeGuWyx gIBeazvOFs+Yk4c27IVk1tTvYjUh4OlfI67CjoASYwYjIQgOGQh+Pa139n3IdBRU/vjPqglG NqAgx/jEzTnKmwwFf8zU4E6Mk2+Bmv7vVjGP6RvuduGsnR/Iv/+c68TuZBhwzM1yWY4n6Mif WOVgDCe9tgBzGgAy3R2cXhxbvQUgI8H0iQPsHG8w3V7DZTEfPM3McOFkMDo+6vL6AtRXn3Rj cQRIW37k5hyDMWEqboWwVq8Bw9IEyk7ngR8yvFh2ABjOnnQp14Gxs5ddmAKdK+MIux8Ds6wj ZdgpxM/4UgLjSwmM/7sVI5gJ8aXV2pQEWitRi5T0Z/+9bKwqpQpZ/ew3fVCPWEfnglsRlEBa EUBgAh/e+t6OeC9enCz1MK1RxWj0ClrbikiYFWdh/DWxKua/UepiROJQoVgqlYpDN0tFgnU8 2/fn4rzIBJmOTqZpNa15oUMJd34amjSSd2d4W+FGt8eTfYaleWG5T22drz1+5lFeTMbevCT9 qFzc+6B553azD8CmWi54Xj9yqtr3/RxDdH1m7Y67X147XkOfuN5TuKPnguTNv3M7XnkWdXCf b3jZSPFCpuPmg+CC/n2dbZZxy4xff/CN8wGWW38eWjYPVH8yVOmpqsAWefyvzGtvO0bO9YFJ TaS9cT/cOzRlMkZ5tzw2dlu/Lc5JSbqEvrPSnLF5/hvrh4db9JGvtzvm5+U/rckPqzM+v3ZH lxQYUKHJkkfk5KIbrjZb9qSWFrjtxhS2ztsLpR/T/LFG6t6W0nvlZdKzWZ+nei9f2T98dNEQ e74PCbF0ReTu6RPgWrlMtAnTaGX/Ajzz1zR/BAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrPIsWRmVeSWpSXmKPExsWy7bCSvO6n7WfSDO6vZrZYfbefzeL14U+M FtM+/GS2+H/3OZPFzQM7mSxWrj7KZDF7ejOTxZP1s5gtNvZzWDy+85nd4ueyVewWR/+/ZbOY dOgao8XeW9oWlxa5W+zZe5LFYv6yp+wW3dd3sFksP/6PyWLb7/nMFutev2exOD9rDruDmMfl K94e5+9tZPGYNukUm8fls6Uem1Z1snlsXlLvsXvBZyaP3Tcb2Dw+Pr3F4tG3ZRWjx5kFR9g9 Pm+SC+CJ4rJJSc3JLEst0rdL4Mp4du4VS8FDropbexexNDC+5uhi5OSQEDCReL/qOnsXIxeH kMBuRom5K/cxQiTEJZqv/WCHsIUlVv57DmYLCXxklFixqLyLkYODTUBT4sLkUpBeEYHJTBJN D7ewgDjMAkeZJNpaFjGDNAgLWEq8ewuS4ORgEVCV2HK9BczmBYr3HjvDArFAXmLmpe9gCzgF rCT+f3gPtcxSYuWZ5ewQ9YISJ2c+AatnBqpv3jqbeQKjwCwkqVlIUgsYmVYxSqYWFOem5yYb FhjmpZbrFSfmFpfmpesl5+duYgTHqZbGDsZ78//pHWJk4mA8xCjBwawkwit3+WSaEG9KYmVV alF+fFFpTmrxIUZpDhYlcV7DGbNThATSE0tSs1NTC1KLYLJMHJxSDUxXhDqYm44/uszXw3Hf +qTy0xe1j5pOXV6az1rkLeGfebx542ebtIodq/ZM4xdIKrK6WxFx5+G7or/Hw38W7hY0vGpU Z7fy5hJfz3k1nGKce85r3Vmdc+v5sgmLry/93ssmK6IQUte808BQS+aG3Yai5Z++xGfWPXx4 OFhuilWBOP92410PHlQ0mZ0q6/ErbCp/euaKmPv3uIs9W/avPrnMkTHQZ6ao6QKZJqn4zhQ5 E+Ufk7U5NazPCFrGrXTSDbPmOVwX5zmlzrTSijm2WE/2Ytehe06MbN+ehwmVz2dhs5r4OcKs RrmDW3l6+z9li+bt6RlfPk/e4Pfg/b5tckI7ni2PzYpJvPzjZ9GpT0osxRmJhlrMRcWJAMUC 7xRCAwAA X-CMS-MailID: 20240826171426epcas5p13c5ffabd6a05ee357bf4e9f78bc5de44 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240826171426epcas5p13c5ffabd6a05ee357bf4e9f78bc5de44 References: <20240826170606.255718-1-joshi.k@samsung.com> From: Nitesh Shetty The incoming hint value maybe either life hint or placement hint. Make SCSI interpret only temperature-based write life hints. Signed-off-by: Nitesh Shetty Signed-off-by: Kanchan Joshi --- drivers/scsi/sd.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 699f4f9674d9..32b8a841c497 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1191,8 +1191,8 @@ static u8 sd_group_number(struct scsi_cmnd *cmd) if (!sdkp->rscs) return 0; - return min3((u32)rq->write_hint, (u32)sdkp->permanent_stream_count, - 0x3fu); + return min3((u32)WRITE_LIFE_HINT(rq->write_hint), + (u32)sdkp->permanent_stream_count, 0x3fu); } static blk_status_t sd_setup_rw32_cmnd(struct scsi_cmnd *cmd, bool write, @@ -1390,7 +1390,8 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd) ret = sd_setup_rw16_cmnd(cmd, write, lba, nr_blocks, protect | fua, dld); } else if ((nr_blocks > 0xff) || (lba > 0x1fffff) || - sdp->use_10_for_rw || protect || rq->write_hint) { + sdp->use_10_for_rw || protect || + WRITE_LIFE_HINT(rq->write_hint)) { ret = sd_setup_rw10_cmnd(cmd, write, lba, nr_blocks, protect | fua); 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Tue, 27 Aug 2024 02:14:31 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20240826171430epcas5p3d8e34a266ced7b3ea0df2a11b83292ae~vVqoOYF0n1118211182epcas5p3m; Mon, 26 Aug 2024 17:14:30 +0000 (GMT) Received: from epsmgmcp1.samsung.com (unknown [182.195.42.82]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240826171430epsmtrp2a8d6ae6dc2221cc5f2dd7ba34e9c1b7e~vVqoLASCB3048030480epsmtrp2m; Mon, 26 Aug 2024 17:14:30 +0000 (GMT) X-AuditID: b6c32a4b-879fa700000025aa-5b-66ccb7f6a7a5 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgmcp1.samsung.com (Symantec Messaging Gateway) with SMTP id DF.51.19367.6F7BCC66; Tue, 27 Aug 2024 02:14:30 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240826171426epsmtip243cd9f8a60035672848defe83d52dea1~vVqkKvu2X0834608346epsmtip2P; Mon, 26 Aug 2024 17:14:26 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com, James.Bottomley@HansenPartnership.com, brauner@kernel.org, jack@suse.cz, jaegeuk@kernel.org, jlayton@kernel.org, chuck.lever@oracle.com, bvanassche@acm.org Cc: linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, gost.dev@samsung.com, vishak.g@samsung.com, javier.gonz@samsung.com, Kanchan Joshi , Nitesh Shetty , Hui Qi Subject: [PATCH v4 5/5] nvme: enable FDP support Date: Mon, 26 Aug 2024 22:36:06 +0530 Message-Id: <20240826170606.255718-6-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240826170606.255718-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA02Ta0xTZxjHcy6cHgydB9DwShZgNW4CQlug5a0T0Uj0IEQxyxbih9UODheB tvS06pzbCGxMBORihFmGEAWcVVbucqtTroGhEBDlIgwYpAF0ol1gCBtrKTq//Z7n/f/f53ne C4k5vCScyVi5mlHJZfE8YhNe1+ru7rV0pydKYHyMwVtjWQScb32FwLyFZQyujRlROHyvAYU3 b7WjsKGsnAML8lNQOK3XYrAyi4R/PDVx4HKZjgPb154TMLflMQINI56w/9oh2GzowmFR2QwH pj+pJ+CNzn9RWLdShMFf5l/gsFf7E2efEz3wKITuHa/E6bzcboIeeKChq3RpBF1d8i3dVGxC 6abhJIJ+OTOC0xdrdAjdU9zGoU1VLmF2x+P2xDCySEblxsgjFJGx8ugAXsgn0gNSkVgg9BJK oD/PTS5LYAJ4QaFhXgdj480z89xOyeI15lSYjGV5/L17VAqNmnGLUbDqAB6jjIxX+im9WVkC q5FHe8sZ9W6hQOAjMgtPxMXUau8RyruiM0OLGXgSctPzAmJLAsoPzOpT0QvIJtKBakJAxWgt xxq8QkDW7SHsbTBbch97Y3ky2EZYFxoQ8FtNH24NTAgw9iyaVSRJUO6g75LGkt9CpaCgsvz1 ugOjRlDQNPszYhE5UgKQvMJadsWpHaCtQGdjYS4lAdlp11BrNVdwpX+JY2FbajdYW3jBsWrs QdeVadzCmFmTUluw3iqg0m1BQUfFhjkINGc/3GBHMNdZw7GyMzD9aSCsHAcmpiZwK58D9dUX bawcCJJWh2wsfWLmYfSNfGut90DmyjRqSQOKC86nOljVH4Dx3JkNpxOY/LFkg2mgL+vYON9M BEzWZuHZiKv2nRG074yg/b9aMYLpkG2Mkk2IZliR0lfOnH57sxGKhCpk/e17hNQjUxML3i0I SiItCCAx3hauy0BXlAM3UvblWUalkKo08QzbgojMZ5yDOW+NUJg/j1wtFfpJBH5isdhP4isW 8py4898XRjpQ0TI1E8cwSkb1xoeSts5J6GdTpdXpHn9nf9zkiiVutTPwlzprugqyxPnjnGeD k6k7jRnnJzM8V45q/FcLjY/0oz5BY4sD+xxPYqeKYurmsJHQz/Vh5Dfh+4/xt5Uasqs7bRr/ Gv19+PKh5JD2qKsZm6OMXlUfipolhYlnDpb2Jhy5/1Hp3jt9uszrVXI7Q+BJ4z/LxGhrovM5 +wf81l2b1ca00IfhXPf0uz6G/V2vG3cdWT1+2D7vrDS4JPN5/7PgxeuNzTmVrFNvrO/t1aLi VP4Pvm02hhxy+xeD/uj7sxV1Hdtd3Ce/K38qNZ3+WhJ4QB/sm/rrV1eHmMs7Anb2hed7j0Yk dq98ivUdPnYCS55rn13r5uFsjEzogalY2X/d+SZVhAQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA02Ra1BMYRjHveeczjk14thuh9jG5lZRGZle5PaFM2gGYwxhONpTYVs7u20u MZaIrYhQOqEk2+w2SvebdthKUyJdVVNoSUiKmmSiZdsx07f/8/x+8/w/PCQqeITNIg9Jwzi5 lJWIcBussELksmSkqC7IWx3pAjO74nDYV/EDwITBXyg0dfUisP1JCQK1mVUILNE8JGByYiQC P2TzKMyJI+H7ziEC/tLoCFhl6sdhvKEVwPIOD9iYthE+Lq/BYIqmh4Axr4txmFE9jsDCsRQU ZvUNYLCev02sc2Kamjcz9W9yMCYhvhZnml4omVydGmfy0s8wZalDCFPWrsKZ7z0dGHMlXweY utRKghnKFW6dGmDjJ+Ykh8I5udeaAzYhBfwTXKZffrxtJBZTAa1HNLAmacqHft1SiUcDG1JA FQH6y9Bn3AKc6MjWUcKS7WjteC9hkb4DOtY4ZhUNSBKn3OhX15XmvT11HaHPdedj5gGlPiJ0 V3I+YpbsKG/63JjCfAij5tOVyTorc7alVtBX1WmIpcCFTmr8OVFmTa2kTYMDE1nwz9HWZRAW fwZdk/QBM2f0nx9ZkIxeBRQ/CfGTUCpAdMCBkylCg0MDZUs9FWyoQikN9gw8GpoLJp7qvr0Y aLL/eBoAQgIDoElUZG8rbKoJEtiK2RMnOfnR/XKlhFMYgDOJiZxsXSVqsYAKZsO4Ixwn4+T/ KUJaz1IhmwhfVW/enYbBm9tciuJfFe7lTqwNUOm9ZwbEjZgCo84Xl9dnVNQuqjwlHXUEbf4B rs7PYwybnt092GiV+O596Ybutn33SvasV2oHe5rFFzV2hgcRM+f6R7ndLeGJy8KpCeFnhY6O T+W3+FFj71PrlO7O1B3oMSj0ejGlPqQivGXevtjADpOofe6Gt1m/d5Wd9n057WXpDW5OsXg4 3eGSEx8Tt2xbn1db+s6s+abhhIhVaasXdvRPuW/EPhl4YwP7+ULr28zDnSnO2/OlM/LUvux0 /ezarwPSa116h+GgM9XfFCO7F/hIcqBR4zd7WN+S+3NxOi7acjvcge3O7lyglZEiTBHCLnVH 5Qr2L7cQEX5DAwAA X-CMS-MailID: 20240826171430epcas5p3d8e34a266ced7b3ea0df2a11b83292ae X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240826171430epcas5p3d8e34a266ced7b3ea0df2a11b83292ae References: <20240826170606.255718-1-joshi.k@samsung.com> Flexible Data Placement (FDP), as ratified in TP 4146a, allows the host to control the placement of logical blocks so as to reduce the SSD WAF. Userspace can send the data placement information using the write hints. Fetch the placement-identifiers if the device supports FDP. The incoming placement hint is mapped to a placement-identifier, which in turn is set in the DSPEC field of the write command. Signed-off-by: Kanchan Joshi Signed-off-by: Nitesh Shetty Signed-off-by: Hui Qi Acked-by: Keith Busch --- drivers/nvme/host/core.c | 81 ++++++++++++++++++++++++++++++++++++++++ drivers/nvme/host/nvme.h | 4 ++ include/linux/nvme.h | 19 ++++++++++ 3 files changed, 104 insertions(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 33fa01c599ad..f93abd7fb163 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -43,6 +43,20 @@ struct nvme_ns_info { bool is_removed; }; +struct nvme_fdp_ruh_status_desc { + u16 pid; + u16 ruhid; + u32 earutr; + u64 ruamw; + u8 rsvd16[16]; +}; + +struct nvme_fdp_ruh_status { + u8 rsvd0[14]; + __le16 nruhsd; + struct nvme_fdp_ruh_status_desc ruhsd[]; +}; + unsigned int admin_timeout = 60; module_param(admin_timeout, uint, 0644); MODULE_PARM_DESC(admin_timeout, "timeout in seconds for admin commands"); @@ -656,6 +670,7 @@ static void nvme_free_ns_head(struct kref *ref) ida_free(&head->subsys->ns_ida, head->instance); cleanup_srcu_struct(&head->srcu); nvme_put_subsystem(head->subsys); + kfree(head->plids); kfree(head); } @@ -958,6 +973,17 @@ static bool nvme_valid_atomic_write(struct request *req) return true; } +static inline void nvme_assign_placement_id(struct nvme_ns *ns, + struct request *req, + struct nvme_command *cmd) +{ + u8 h = umin(ns->head->nr_plids - 1, + WRITE_PLACEMENT_HINT(req->write_hint)); + + cmd->rw.control |= cpu_to_le16(NVME_RW_DTYPE_DPLCMT); + cmd->rw.dsmgmt |= cpu_to_le32(ns->head->plids[h] << 16); +} + static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, struct request *req, struct nvme_command *cmnd, enum nvme_opcode op) @@ -1077,6 +1103,8 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req) break; case REQ_OP_WRITE: ret = nvme_setup_rw(ns, req, cmd, nvme_cmd_write); + if (!ret && ns->head->nr_plids) + nvme_assign_placement_id(ns, req, cmd); break; case REQ_OP_ZONE_APPEND: ret = nvme_setup_rw(ns, req, cmd, nvme_cmd_zone_append); @@ -2113,6 +2141,52 @@ static int nvme_update_ns_info_generic(struct nvme_ns *ns, return ret; } +static int nvme_fetch_fdp_plids(struct nvme_ns *ns, u32 nsid) +{ + struct nvme_command c = {}; + struct nvme_fdp_ruh_status *ruhs; + struct nvme_fdp_ruh_status_desc *ruhsd; + int size, ret, i; + +refetch_plids: + size = struct_size(ruhs, ruhsd, ns->head->nr_plids); + ruhs = kzalloc(size, GFP_KERNEL); + if (!ruhs) + return -ENOMEM; + + c.imr.opcode = nvme_cmd_io_mgmt_recv; + c.imr.nsid = cpu_to_le32(nsid); + c.imr.mo = 0x1; + c.imr.numd = cpu_to_le32((size >> 2) - 1); + + ret = nvme_submit_sync_cmd(ns->queue, &c, ruhs, size); + if (ret) + goto out; + + if (!ns->head->nr_plids) { + ns->head->nr_plids = le16_to_cpu(ruhs->nruhsd); + ns->head->nr_plids = + min_t(u16, ns->head->nr_plids, NVME_MAX_PLIDS); + + if (!ns->head->nr_plids) + goto out; + + kfree(ruhs); + goto refetch_plids; + } + ns->head->plids = kzalloc(ns->head->nr_plids * sizeof(u16), GFP_KERNEL); + if (!ns->head->plids) + return -ENOMEM; + + for (i = 0; i < ns->head->nr_plids; i++) { + ruhsd = &ruhs->ruhsd[i]; + ns->head->plids[i] = le16_to_cpu(ruhsd->pid); + } +out: + kfree(ruhs); + return ret; +} + static int nvme_update_ns_info_block(struct nvme_ns *ns, struct nvme_ns_info *info) { @@ -2204,6 +2278,13 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns, if (ret && !nvme_first_scan(ns->disk)) goto out; } + if (ns->ctrl->ctratt & NVME_CTRL_ATTR_FDPS) { + ret = nvme_fetch_fdp_plids(ns, info->nsid); + if (ret) + dev_warn(ns->ctrl->device, + "FDP failure status:0x%x\n", ret); + } + ret = 0; out: diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index ae5314d32943..7516823ff8dd 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -450,6 +450,8 @@ struct nvme_ns_ids { u8 csi; }; +#define NVME_MAX_PLIDS (MAX_PLACEMENT_HINT_VAL + 1) + /* * Anchor structure for namespaces. There is one for each namespace in a * NVMe subsystem that any of our controllers can see, and the namespace @@ -471,6 +473,8 @@ struct nvme_ns_head { struct kref ref; bool shared; bool passthru_err_log_enabled; + u16 nr_plids; + u16 *plids; struct nvme_effects_log *effects; u64 nuse; unsigned ns_id; diff --git a/include/linux/nvme.h b/include/linux/nvme.h index 7b2ae2e43544..12d8db13b66e 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -275,6 +275,7 @@ enum nvme_ctrl_attr { NVME_CTRL_ATTR_HID_128_BIT = (1 << 0), NVME_CTRL_ATTR_TBKAS = (1 << 6), NVME_CTRL_ATTR_ELBAS = (1 << 15), + NVME_CTRL_ATTR_FDPS = (1 << 19), }; struct nvme_id_ctrl { @@ -843,6 +844,7 @@ enum nvme_opcode { nvme_cmd_resv_register = 0x0d, nvme_cmd_resv_report = 0x0e, nvme_cmd_resv_acquire = 0x11, + nvme_cmd_io_mgmt_recv = 0x12, nvme_cmd_resv_release = 0x15, nvme_cmd_zone_mgmt_send = 0x79, nvme_cmd_zone_mgmt_recv = 0x7a, @@ -864,6 +866,7 @@ enum nvme_opcode { nvme_opcode_name(nvme_cmd_resv_register), \ nvme_opcode_name(nvme_cmd_resv_report), \ nvme_opcode_name(nvme_cmd_resv_acquire), \ + nvme_opcode_name(nvme_cmd_io_mgmt_recv), \ nvme_opcode_name(nvme_cmd_resv_release), \ nvme_opcode_name(nvme_cmd_zone_mgmt_send), \ nvme_opcode_name(nvme_cmd_zone_mgmt_recv), \ @@ -1015,6 +1018,7 @@ enum { NVME_RW_PRINFO_PRCHK_GUARD = 1 << 12, NVME_RW_PRINFO_PRACT = 1 << 13, NVME_RW_DTYPE_STREAMS = 1 << 4, + NVME_RW_DTYPE_DPLCMT = 2 << 4, NVME_WZ_DEAC = 1 << 9, }; @@ -1102,6 +1106,20 @@ struct nvme_zone_mgmt_recv_cmd { __le32 cdw14[2]; }; +struct nvme_io_mgmt_recv_cmd { + __u8 opcode; + __u8 flags; + __u16 command_id; + __le32 nsid; + __le64 rsvd2[2]; + union nvme_data_ptr dptr; + __u8 mo; + __u8 rsvd11; + __u16 mos; + __le32 numd; + __le32 cdw12[4]; +}; + enum { NVME_ZRA_ZONE_REPORT = 0, NVME_ZRASF_ZONE_REPORT_ALL = 0, @@ -1822,6 +1840,7 @@ struct nvme_command { struct nvmf_auth_receive_command auth_receive; struct nvme_dbbuf dbbuf; struct nvme_directive_cmd directive; + struct nvme_io_mgmt_recv_cmd imr; }; };