From: Vivek Goyal <vgoyal@redhat.com>
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
virtio-fs@redhat.com
Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com,
dgilbert@redhat.com
Subject: [PATCH v2 16/20] fuse,virtiofs: Define dax address space operations
Date: Fri, 7 Aug 2020 15:55:22 -0400 [thread overview]
Message-ID: <20200807195526.426056-17-vgoyal@redhat.com> (raw)
In-Reply-To: <20200807195526.426056-1-vgoyal@redhat.com>
This is done along the lines of ext4 and xfs. I primarily wanted ->writepages
hook at this time so that I could call into dax_writeback_mapping_range().
This in turn will decide which pfns need to be written back.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
fs/fuse/file.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 00ad27216cc3..54708cb24da0 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2669,6 +2669,16 @@ static int fuse_writepages_fill(struct page *page,
return err;
}
+static int fuse_dax_writepages(struct address_space *mapping,
+ struct writeback_control *wbc)
+{
+
+ struct inode *inode = mapping->host;
+ struct fuse_conn *fc = get_fuse_conn(inode);
+
+ return dax_writeback_mapping_range(mapping, fc->dax_dev, wbc);
+}
+
static int fuse_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
@@ -4030,6 +4040,13 @@ static const struct address_space_operations fuse_file_aops = {
.write_end = fuse_write_end,
};
+static const struct address_space_operations fuse_dax_file_aops = {
+ .writepages = fuse_dax_writepages,
+ .direct_IO = noop_direct_IO,
+ .set_page_dirty = noop_set_page_dirty,
+ .invalidatepage = noop_invalidatepage,
+};
+
void fuse_init_file_inode(struct inode *inode)
{
struct fuse_inode *fi = get_fuse_inode(inode);
@@ -4045,6 +4062,8 @@ void fuse_init_file_inode(struct inode *inode)
fi->writepages = RB_ROOT;
fi->dmap_tree = RB_ROOT_CACHED;
- if (fc->dax_dev)
+ if (fc->dax_dev) {
inode->i_flags |= S_DAX;
+ inode->i_data.a_ops = &fuse_dax_file_aops;
+ }
}
--
2.25.4
WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com>
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
virtio-fs@redhat.com
Cc: vgoyal@redhat.com, miklos@szeredi.hu
Subject: [Virtio-fs] [PATCH v2 16/20] fuse, virtiofs: Define dax address space operations
Date: Fri, 7 Aug 2020 15:55:22 -0400 [thread overview]
Message-ID: <20200807195526.426056-17-vgoyal@redhat.com> (raw)
In-Reply-To: <20200807195526.426056-1-vgoyal@redhat.com>
This is done along the lines of ext4 and xfs. I primarily wanted ->writepages
hook at this time so that I could call into dax_writeback_mapping_range().
This in turn will decide which pfns need to be written back.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
fs/fuse/file.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 00ad27216cc3..54708cb24da0 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2669,6 +2669,16 @@ static int fuse_writepages_fill(struct page *page,
return err;
}
+static int fuse_dax_writepages(struct address_space *mapping,
+ struct writeback_control *wbc)
+{
+
+ struct inode *inode = mapping->host;
+ struct fuse_conn *fc = get_fuse_conn(inode);
+
+ return dax_writeback_mapping_range(mapping, fc->dax_dev, wbc);
+}
+
static int fuse_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
@@ -4030,6 +4040,13 @@ static const struct address_space_operations fuse_file_aops = {
.write_end = fuse_write_end,
};
+static const struct address_space_operations fuse_dax_file_aops = {
+ .writepages = fuse_dax_writepages,
+ .direct_IO = noop_direct_IO,
+ .set_page_dirty = noop_set_page_dirty,
+ .invalidatepage = noop_invalidatepage,
+};
+
void fuse_init_file_inode(struct inode *inode)
{
struct fuse_inode *fi = get_fuse_inode(inode);
@@ -4045,6 +4062,8 @@ void fuse_init_file_inode(struct inode *inode)
fi->writepages = RB_ROOT;
fi->dmap_tree = RB_ROOT_CACHED;
- if (fc->dax_dev)
+ if (fc->dax_dev) {
inode->i_flags |= S_DAX;
+ inode->i_data.a_ops = &fuse_dax_file_aops;
+ }
}
--
2.25.4
next prev parent reply other threads:[~2020-08-07 19:56 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-07 19:55 [PATCH v2 00/20] virtiofs: Add DAX support Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 01/20] dax: Modify bdev_dax_pgoff() to handle NULL bdev Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` Vivek Goyal
2020-08-17 16:57 ` Jan Kara
2020-08-17 16:57 ` [Virtio-fs] " Jan Kara
2020-08-17 16:57 ` Jan Kara
2020-08-07 19:55 ` [PATCH v2 02/20] dax: Create a range version of dax_layout_busy_page() Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` Vivek Goyal
2020-08-17 16:53 ` Jan Kara
2020-08-17 16:53 ` [Virtio-fs] " Jan Kara
2020-08-17 16:53 ` Jan Kara
2020-08-17 17:22 ` Vivek Goyal
2020-08-17 17:22 ` [Virtio-fs] " Vivek Goyal
2020-08-17 17:22 ` Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 03/20] virtio: Add get_shm_region method Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-10 13:47 ` Michael S. Tsirkin
2020-08-10 13:47 ` [Virtio-fs] " Michael S. Tsirkin
2020-08-10 13:54 ` Vivek Goyal
2020-08-10 13:54 ` [Virtio-fs] " Vivek Goyal
2020-08-10 14:02 ` Michael S. Tsirkin
2020-08-10 14:02 ` [Virtio-fs] " Michael S. Tsirkin
2020-08-10 14:06 ` Michael S. Tsirkin
2020-08-10 14:06 ` [Virtio-fs] " Michael S. Tsirkin
2020-08-07 19:55 ` [PATCH v2 04/20] virtio: Implement get_shm_region for PCI transport Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-10 14:05 ` Michael S. Tsirkin
2020-08-10 14:05 ` [Virtio-fs] " Michael S. Tsirkin
2020-08-10 14:50 ` Vivek Goyal
2020-08-10 14:50 ` [Virtio-fs] " Vivek Goyal
2020-08-14 2:51 ` Gurchetan Singh
2020-08-17 20:29 ` Vivek Goyal
2020-08-17 20:29 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 05/20] virtio: Implement get_shm_region for MMIO transport Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-10 14:03 ` Michael S. Tsirkin
2020-08-10 14:03 ` [Virtio-fs] " Michael S. Tsirkin
2020-08-07 19:55 ` [PATCH v2 06/20] virtiofs: Provide a helper function for virtqueue initialization Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 07/20] fuse: Get rid of no_mount_options Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 08/20] fuse,virtiofs: Add a mount option to enable dax Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] [PATCH v2 08/20] fuse, virtiofs: " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 09/20] virtio_fs, dax: Set up virtio_fs dax_device Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 10/20] fuse,virtiofs: Keep a list of free dax memory ranges Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] [PATCH v2 10/20] fuse, virtiofs: " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 11/20] fuse: implement FUSE_INIT map_alignment field Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 12/20] fuse: Introduce setupmapping/removemapping commands Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 13/20] fuse, dax: Implement dax read/write operations Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-10 22:06 ` Dave Chinner
2020-08-10 22:06 ` [Virtio-fs] " Dave Chinner
2020-08-11 17:44 ` Vivek Goyal
2020-08-11 17:44 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 14/20] fuse,dax: add DAX mmap support Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 15/20] fuse, dax: Take ->i_mmap_sem lock during dax page fault Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-10 22:22 ` Dave Chinner
2020-08-10 22:22 ` [Virtio-fs] " Dave Chinner
2020-08-11 17:55 ` Vivek Goyal
2020-08-11 17:55 ` [Virtio-fs] " Vivek Goyal
2020-08-12 1:23 ` Dave Chinner
2020-08-12 1:23 ` [Virtio-fs] " Dave Chinner
2020-08-12 21:10 ` Vivek Goyal
2020-08-12 21:10 ` [Virtio-fs] " Vivek Goyal
2020-08-13 5:12 ` Dave Chinner
2020-08-13 5:12 ` [Virtio-fs] " Dave Chinner
2020-08-07 19:55 ` Vivek Goyal [this message]
2020-08-07 19:55 ` [Virtio-fs] [PATCH v2 16/20] fuse, virtiofs: Define dax address space operations Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 17/20] fuse,virtiofs: Maintain a list of busy elements Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] [PATCH v2 17/20] fuse, virtiofs: " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 18/20] fuse: Release file in process context Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-10 8:29 ` Miklos Szeredi
2020-08-10 8:29 ` [Virtio-fs] " Miklos Szeredi
2020-08-10 15:48 ` Vivek Goyal
2020-08-10 15:48 ` [Virtio-fs] " Vivek Goyal
2020-08-10 19:37 ` Vivek Goyal
2020-08-10 19:37 ` [Virtio-fs] " Vivek Goyal
2020-08-10 19:39 ` Miklos Szeredi
2020-08-10 19:39 ` [Virtio-fs] " Miklos Szeredi
2020-08-07 19:55 ` [PATCH v2 19/20] fuse: Take inode lock for dax inode truncation Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] " Vivek Goyal
2020-08-07 19:55 ` [PATCH v2 20/20] fuse,virtiofs: Add logic to free up a memory range Vivek Goyal
2020-08-07 19:55 ` [Virtio-fs] [PATCH v2 20/20] fuse, virtiofs: " Vivek Goyal
2020-08-10 7:29 ` [PATCH v2 00/20] virtiofs: Add DAX support Miklos Szeredi
2020-08-10 7:29 ` [Virtio-fs] " Miklos Szeredi
2020-08-10 13:08 ` Vivek Goyal
2020-08-10 13:08 ` [Virtio-fs] " Vivek Goyal
2020-08-10 13:08 ` Vivek Goyal
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