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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2020-08-20 00:19:52 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2020-09-10 11:39:23 +0200 |
| commit | 2a9a609a0c4a3b0a6892fbe360b8c419839e6da7 (patch) | |
| tree | a4f00f92b7b89b5c0461c86b5920e610bebb6ec9 /fs/fuse/file.c | |
| parent | virtiofs: implement dax read/write operations (diff) | |
| download | linux-2a9a609a0c4a3b0a6892fbe360b8c419839e6da7.tar.xz linux-2a9a609a0c4a3b0a6892fbe360b8c419839e6da7.zip | |
virtiofs: add DAX mmap support
Add DAX mmap() support.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse/file.c')
| -rw-r--r-- | fs/fuse/file.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 6c586bc97b64..2aac787464bc 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2325,6 +2325,10 @@ static int fuse_file_mmap(struct file *file, struct vm_area_struct *vma) { struct fuse_file *ff = file->private_data; + /* DAX mmap is superior to direct_io mmap */ + if (FUSE_IS_DAX(file_inode(file))) + return fuse_dax_mmap(file, vma); + if (ff->open_flags & FOPEN_DIRECT_IO) { /* Can't provide the coherency needed for MAP_SHARED */ if (vma->vm_flags & VM_MAYSHARE) @@ -3413,6 +3417,7 @@ static const struct file_operations fuse_file_operations = { .release = fuse_release, .fsync = fuse_fsync, .lock = fuse_file_lock, + .get_unmapped_area = thp_get_unmapped_area, .flock = fuse_file_flock, .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, |