From: Shiyang Ruan <ruansy.fnst@fujitsu.com> To: <linux-kernel@vger.kernel.org>, <linux-xfs@vger.kernel.org>, <linux-nvdimm@lists.01.org>, <linux-mm@kvack.org>, <linux-fsdevel@vger.kernel.org>, <dm-devel@redhat.com> Cc: <darrick.wong@oracle.com>, <dan.j.williams@intel.com>, <david@fromorbit.com>, <hch@lst.de>, <agk@redhat.com>, <snitzer@redhat.com>, <rgoldwyn@suse.de> Subject: [PATCH v4 06/10] fs/dax: Implement dax_holder_operations Date: Fri, 4 Jun 2021 09:18:40 +0800 [thread overview] Message-ID: <20210604011844.1756145-7-ruansy.fnst@fujitsu.com> (raw) In-Reply-To: <20210604011844.1756145-1-ruansy.fnst@fujitsu.com> This is the case where the holder represents a filesystem. The offset translation from disk to block device is needed before we calling ->corrupted_range(). When a specific filesystem is being mounted, we use dax_set_holder() to associate it with the dax_device. Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> --- fs/dax.c | 16 ++++++++++++++++ include/linux/dax.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/fs/dax.c b/fs/dax.c index 58faca85455a..1a7473f46df2 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1762,3 +1762,19 @@ vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf, return dax_insert_pfn_mkwrite(vmf, pfn, order); } EXPORT_SYMBOL_GPL(dax_finish_sync_fault); + +static int fs_dax_corrupted_range(struct dax_device *dax_dev, + struct block_device *bdev, loff_t offset, size_t size, + void *data) +{ + struct super_block *sb = dax_get_holder(dax_dev); + loff_t bdev_off = offset - (get_start_sect(bdev) << SECTOR_SHIFT); + + if (!sb->s_op->corrupted_range) + return -EOPNOTSUPP; + return sb->s_op->corrupted_range(sb, bdev, bdev_off, size, data); +} + +const struct dax_holder_operations fs_dax_holder_ops = { + .corrupted_range = fs_dax_corrupted_range, +}; \ No newline at end of file diff --git a/include/linux/dax.h b/include/linux/dax.h index 6e758daa5004..b35b3b8959a5 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -254,6 +254,8 @@ static inline bool dax_mapping(struct address_space *mapping) return mapping->host && IS_DAX(mapping->host); } +extern const struct dax_holder_operations fs_dax_holder_ops; + #ifdef CONFIG_DEV_DAX_HMEM_DEVICES void hmem_register_device(int target_nid, struct resource *r); #else -- 2.31.1
WARNING: multiple messages have this Message-ID (diff)
From: Shiyang Ruan <ruansy.fnst@fujitsu.com> To: <linux-kernel@vger.kernel.org>, <linux-xfs@vger.kernel.org>, <linux-nvdimm@lists.01.org>, <linux-mm@kvack.org>, <linux-fsdevel@vger.kernel.org>, <dm-devel@redhat.com> Cc: snitzer@redhat.com, darrick.wong@oracle.com, rgoldwyn@suse.de, david@fromorbit.com, dan.j.williams@intel.com, hch@lst.de, agk@redhat.com Subject: [dm-devel] [PATCH v4 06/10] fs/dax: Implement dax_holder_operations Date: Fri, 4 Jun 2021 09:18:40 +0800 [thread overview] Message-ID: <20210604011844.1756145-7-ruansy.fnst@fujitsu.com> (raw) In-Reply-To: <20210604011844.1756145-1-ruansy.fnst@fujitsu.com> This is the case where the holder represents a filesystem. The offset translation from disk to block device is needed before we calling ->corrupted_range(). When a specific filesystem is being mounted, we use dax_set_holder() to associate it with the dax_device. Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> --- fs/dax.c | 16 ++++++++++++++++ include/linux/dax.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/fs/dax.c b/fs/dax.c index 58faca85455a..1a7473f46df2 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1762,3 +1762,19 @@ vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf, return dax_insert_pfn_mkwrite(vmf, pfn, order); } EXPORT_SYMBOL_GPL(dax_finish_sync_fault); + +static int fs_dax_corrupted_range(struct dax_device *dax_dev, + struct block_device *bdev, loff_t offset, size_t size, + void *data) +{ + struct super_block *sb = dax_get_holder(dax_dev); + loff_t bdev_off = offset - (get_start_sect(bdev) << SECTOR_SHIFT); + + if (!sb->s_op->corrupted_range) + return -EOPNOTSUPP; + return sb->s_op->corrupted_range(sb, bdev, bdev_off, size, data); +} + +const struct dax_holder_operations fs_dax_holder_ops = { + .corrupted_range = fs_dax_corrupted_range, +}; \ No newline at end of file diff --git a/include/linux/dax.h b/include/linux/dax.h index 6e758daa5004..b35b3b8959a5 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -254,6 +254,8 @@ static inline bool dax_mapping(struct address_space *mapping) return mapping->host && IS_DAX(mapping->host); } +extern const struct dax_holder_operations fs_dax_holder_ops; + #ifdef CONFIG_DEV_DAX_HMEM_DEVICES void hmem_register_device(int target_nid, struct resource *r); #else -- 2.31.1 -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2021-06-04 1:19 UTC|newest] Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-04 1:18 [PATCH v4 00/10] fsdax: introduce fs query to support reflink Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-04 1:18 ` [PATCH v4 01/10] pagemap: Introduce ->memory_failure() Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-16 0:18 ` Dan Williams 2021-06-16 0:18 ` [dm-devel] " Dan Williams 2021-06-16 0:18 ` Dan Williams 2021-06-04 1:18 ` [PATCH v4 02/10] dax: Introduce holder for dax_device Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-16 0:46 ` Dan Williams 2021-06-16 0:46 ` [dm-devel] " Dan Williams 2021-06-16 0:46 ` Dan Williams 2021-06-04 1:18 ` [PATCH v4 03/10] fs: Introduce ->corrupted_range() for superblock Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-16 0:48 ` Dan Williams 2021-06-16 0:48 ` [dm-devel] " Dan Williams 2021-06-16 0:48 ` Dan Williams 2021-06-17 6:51 ` ruansy.fnst 2021-06-17 6:51 ` [dm-devel] " ruansy.fnst 2021-06-17 7:04 ` Dan Williams 2021-06-17 7:04 ` [dm-devel] " Dan Williams 2021-06-17 7:04 ` Dan Williams 2021-06-17 8:12 ` ruansy.fnst 2021-06-17 8:12 ` [dm-devel] " ruansy.fnst 2021-06-04 1:18 ` [PATCH v4 04/10] mm, fsdax: Refactor memory-failure handler for dax mapping Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-16 6:30 ` Dan Williams 2021-06-16 6:30 ` [dm-devel] " Dan Williams 2021-06-16 6:30 ` Dan Williams 2021-06-17 7:51 ` ruansy.fnst 2021-06-17 7:51 ` [dm-devel] " ruansy.fnst 2021-06-04 1:18 ` [PATCH v4 05/10] mm, pmem: Implement ->memory_failure() in pmem driver Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-16 6:49 ` Dan Williams 2021-06-16 6:49 ` [dm-devel] " Dan Williams 2021-06-16 6:49 ` Dan Williams 2021-06-04 1:18 ` Shiyang Ruan [this message] 2021-06-04 1:18 ` [dm-devel] [PATCH v4 06/10] fs/dax: Implement dax_holder_operations Shiyang Ruan 2021-06-04 1:18 ` [PATCH v4 07/10] dm: Introduce ->rmap() to find bdev offset Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-04 1:18 ` [PATCH v4 08/10] md: Implement dax_holder_operations Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-04 5:48 ` kernel test robot 2021-06-04 5:48 ` kernel test robot 2021-06-04 5:48 ` [dm-devel] " kernel test robot 2021-06-04 1:18 ` [PATCH v4 09/10] xfs: Implement ->corrupted_range() for XFS Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan 2021-06-04 5:22 ` kernel test robot 2021-06-04 5:22 ` kernel test robot 2021-06-04 5:22 ` [dm-devel] " kernel test robot 2021-06-04 5:40 ` kernel test robot 2021-06-04 5:40 ` kernel test robot 2021-06-04 5:40 ` [dm-devel] " kernel test robot 2021-06-04 1:18 ` [PATCH v4 10/10] fs/dax: Remove useless functions Shiyang Ruan 2021-06-04 1:18 ` [dm-devel] " Shiyang Ruan
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210604011844.1756145-7-ruansy.fnst@fujitsu.com \ --to=ruansy.fnst@fujitsu.com \ --cc=agk@redhat.com \ --cc=dan.j.williams@intel.com \ --cc=darrick.wong@oracle.com \ --cc=david@fromorbit.com \ --cc=dm-devel@redhat.com \ --cc=hch@lst.de \ --cc=linux-fsdevel@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-mm@kvack.org \ --cc=linux-nvdimm@lists.01.org \ --cc=linux-xfs@vger.kernel.org \ --cc=rgoldwyn@suse.de \ --cc=snitzer@redhat.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.