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Wed, 27 Apr 2022 16:03:04 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp2.samsung.com (KnoxPortal) with ESMTP id 20220427160304eusmtrp21dbea116401f4753609014b6527a5210~pzFCQGpO42598325983eusmtrp2o; Wed, 27 Apr 2022 16:03:04 +0000 (GMT) X-AuditID: cbfec7f2-e7fff70000002719-7f-626969390a70 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id C6.81.09522.83969626; Wed, 27 Apr 2022 17:03:04 +0100 (BST) Received: from localhost (unknown [106.210.248.162]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20220427160304eusmtip21ef5128fdd0e92e860a902eb43177b8d~pzFB5d6OL3126231262eusmtip26; Wed, 27 Apr 2022 16:03:04 +0000 (GMT) From: Pankaj Raghav To: jaegeuk@kernel.org, axboe@kernel.dk, snitzer@kernel.org, hch@lst.de, mcgrof@kernel.org, naohiro.aota@wdc.com, sagi@grimberg.me, damien.lemoal@opensource.wdc.com, dsterba@suse.com, johannes.thumshirn@wdc.com Cc: linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, clm@fb.com, gost.dev@samsung.com, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, josef@toxicpanda.com, jonathan.derrick@linux.dev, agk@redhat.com, kbusch@kernel.org, kch@nvidia.com, linux-nvme@lists.infradead.org, dm-devel@redhat.com, bvanassche@acm.org, jiangbo.365@bytedance.com, linux-fsdevel@vger.kernel.org, matias.bjorling@wdc.com, linux-block@vger.kernel.org, Pankaj Raghav Subject: [PATCH 08/16] btrfs: zoned: add generic btrfs helpers for zoned devices Date: Wed, 27 Apr 2022 18:02:47 +0200 Message-Id: <20220427160255.300418-9-p.raghav@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220427160255.300418-1-p.raghav@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01Se0xbZRzNd+/t7aWx7K7F8A3Ehep04AZDTfzcpvEx3I37Y4sYNS4qZbtA I3TYgrAxBYSx8dha0DFaqi0vRRgWRiHreDhZgAF2LDxGYWM8Rp3WrO0oOAjIpNwu7r9zft85 v3N+yUfhIiMZQMnkyaxCLk2QkAKipXvp2vZXZbKYHdYyChn7unFUN6EiUYlrCUf9Zy0YKlaV 8tGyZQBH7Y4yHrq+mIWhsctmDP1c14WhWaMWR4WXXQT6N//22ixnGkcr0xGouPMGQLYRLYba x19Ag3dq+GiwYi9qa+8l0NAlHYn0P9r4SJ27gCOr2gZQUU8TD7mrc/jol7+dBLo6HvhGEDM0 vI9ZvXqeZIqyHXxm4HYjwQxZUpgLtXkkU555FmeaqjKYVoMbY1rHMknmdLaDZMwnJnmMs2OE ZM6YagFjNI0QjLqpkXdA9LFg92E2QfYlqwh/PVoQX5Bv4CWZNqSNn2jiZQL7E/nAh4L0y7Cq cZbIBwJKRNcAuNTmwDkyD2CPapXPETeAV+p+IB9ZuusrvZafACzLXcQ48heA+pu2NQtFkXQo zMpbd/vRVgCLGhrWRThtx+F10yjmWSWm34OTE2PAYyDoLVDX9pFnLKR3wqy7TpxL2ww1gw/W d/rQu6B6zivZCHs1nt4+ays3w+zmsvXakK4WwKK+YW/TPbD0j28JDouhvcfE5/BT8KFZj3E4 Hdqsy15zDoAqs5H0hMG1sDO/J3ggTodA46VwTv4mrNQXAE7hC633NnIVfGFxyzmcGwvhqVwR p5ZA89KsNxTCoW903jIMLLbOAzUI1j52jPaxY7T/5xoAXgv82RRlYhyrjJCzqWFKaaIyRR4X duhI4gWw9qf7V3vmLoLv7ffDOgFGgU4AKVziJ5xvjY8RCQ9Ljx5jFUc+U6QksMpOEEgREn/h IVmDVETHSZPZz1k2iVU8esUon4BM7JS48mv01UJFfd9BccVc6zWNZk+Qz0zH7NsLB90nFU/7 jx7f71gEYuVrhegT4jlyy9FnBjLuB0X6js5pot4NiS8djq7fMBBmz/jQyvTz/omtLh+1jIHT +yMr7jiadz5b7zIV3x3ZWvWFurXr/aTaiKkdLvd557YbQ1EvDdtUK8mv6N85FrL1txeXHyhT B7ZTneYPQvMyxu5NH8dmfp28We5y1tLiysDUk5NTt9LzR9NmaqymzL3mmNilgpje6mW/wk2W ksipqJYr6QErzc8bHnbpahKEBkOaLmX61p+NF5NMu0qC8e/8ztErruBN4W99KpFvC5JF6/Mq Yyc0SbuNgic7SiSEMl4aEYorlNL/AHjkNBtCBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprHKsWRmVeSWpSXmKPExsVy+t/xe7oWmZlJBleeaFmsP3WM2WL13X42 i2kffjJbnJ56lsliUv8MdovfZ88zW+x9N5vV4sKPRiaLmwd2MlmsXH2UyeLJ+lnMFj0HPrBY /O26BxRrechs8eehocWkQ9cYLZ5encVksfeWtsWlxyvYLS4tcrfYs/cki8XlXXPYLOYve8pu MaHtK7PFjQlPGS0mHt/MavF5aQu7xbrX71ksTtySdpD1uHzF2+PfiTVsHhOb37F7nL+3kcXj 8tlSj02rOtk8FjZMZfbYvKTeY/eCz0weu282sHn0Nr9j89jZep/V4/2+q2wefVtWMXqs33KV xWPC5o2sAUJRejZF+aUlqQoZ+cUltkrRhhZGeoaWFnpGJpZ6hsbmsVZGpkr6djYpqTmZZalF +nYJehndXQtYC7bwV9xq3czawPiKp4uRk0NCwETi2NrFLF2MXBxCAksZJd6dbGWDSEhI3F7Y xAhhC0v8udbFBlH0nFHiyf01QA4HB5uAlkRjJztIXETgCaPE/Z+PwSYxCzSwSNyauIsJpFtY IEBiZUsXK0gDi4CqxJw9ESBhXgEricbn75khFshLzLz0nR2khFPAWmLCJ7ASIaCS7kW3WCHK BSVOznzCAmIzA5U3b53NPIFRYBaS1CwkqQWMTKsYRVJLi3PTc4sN9YoTc4tL89L1kvNzNzEC E8q2Yz8372Cc9+qj3iFGJg7GQ4wSHMxKIrxfdmckCfGmJFZWpRblxxeV5qQWH2I0Bbp6IrOU aHI+MKXllcQbmhmYGpqYWRqYWpoZK4nzehZ0JAoJpCeWpGanphakFsH0MXFwSjUwbXh0sFYx ffez0B6x6u98avHVshcbxYx9PuuKqC2oyAzgu+CwtoUpebr1lrPqWgqLljxszKicc6BGQ13I 6evUJ+ebNSwcVrf4uN4X2H9p0b79p9z1jxvH3u/mepvZFyL1epHRTbW0Za4/4t5/vhSaYfbe Nv/OIaHcQy/5yxZ8X/bHpEG2/YBd47UCT6FTu35+ccguYrMy7AvSi0xYfvGwTtrMxss3rzr+ fb/IzDvo9PeqkBVWQo8tRKNua6l/rP7w3DF31qFTMVd5171Zv+Y374rm8BKVtJ2Xjq9u9Yj8 yrfkL4+Dq8uUw98/2STONzv8qsZ57wfTRxHFkjMF416p3f6VVTG7S19jdfC2JWpySizFGYmG WsxFxYkABPmx3bEDAAA= X-CMS-MailID: 20220427160304eucas1p1a0080df82f76c39882c4298c3c3d99fd X-Msg-Generator: CA X-RootMTR: 20220427160304eucas1p1a0080df82f76c39882c4298c3c3d99fd X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20220427160304eucas1p1a0080df82f76c39882c4298c3c3d99fd References: <20220427160255.300418-1-p.raghav@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Add helpers to calculate alignment, round up and round down for zoned devices. These helpers encapsulates the necessary handling for power_of_2 and non-power_of_2 zone sizes. Optimized calculations are performed for zone sizes that are power_of_2 with log and shifts. btrfs_zoned_is_aligned() is added instead of reusing bdev_zone_aligned() helper is due to some use cases in btrfs where zone alignment is checked before having access to the underlying block device such as in this function: btrfs_load_block_group_zone_info(). Reviewed-by: Luis Chamberlain Signed-off-by: Pankaj Raghav --- fs/btrfs/zoned.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index 49317524e9a6..b9c435961361 100644 --- a/fs/btrfs/zoned.h +++ b/fs/btrfs/zoned.h @@ -9,6 +9,7 @@ #include "disk-io.h" #include "block-group.h" #include "btrfs_inode.h" +#include "misc.h" /* * Block groups with more than this value (percents) of unusable space will be @@ -34,6 +35,33 @@ struct btrfs_zoned_device_info { u32 sb_zone_location[BTRFS_SUPER_MIRROR_MAX]; }; +static inline bool btrfs_zoned_is_aligned(u64 pos, u64 zone_size) +{ + u64 remainder = 0; + + if (is_power_of_two_u64(zone_size)) + return IS_ALIGNED(pos, zone_size); + + div64_u64_rem(pos, zone_size, &remainder); + return remainder == 0; +} + +static inline u64 btrfs_zoned_roundup(u64 pos, u64 zone_size) +{ + if (is_power_of_two_u64(zone_size)) + return ALIGN(pos, zone_size); + + return roundup(pos, zone_size); +} + +static inline u64 btrfs_zoned_rounddown(u64 pos, u64 zone_size) +{ + if (is_power_of_two_u64(zone_size)) + return round_down(pos, zone_size); + + return rounddown(pos, zone_size); +} + #ifdef CONFIG_BLK_DEV_ZONED int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, struct blk_zone *zone);