From: Daniel Rosenberg <drosen@google.com>
To: Miklos Szeredi <miklos@szeredi.hu>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
John Fastabend <john.fastabend@gmail.com>
Cc: Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>, Yonghong Song <yhs@fb.com>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>,
Daniel Rosenberg <drosen@google.com>,
Paul Lawrence <paullawrence@google.com>,
Alessio Balsini <balsini@google.com>,
David Anderson <dvander@google.com>,
Sandeep Patil <sspatil@google.com>,
linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org,
kernel-team@android.com
Subject: [PATCH 12/26] fuse-bpf: Add support for fallocate
Date: Mon, 26 Sep 2022 16:18:08 -0700 [thread overview]
Message-ID: <20220926231822.994383-13-drosen@google.com> (raw)
In-Reply-To: <20220926231822.994383-1-drosen@google.com>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
---
fs/fuse/backing.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++
fs/fuse/file.c | 10 ++++++++++
fs/fuse/fuse_i.h | 11 +++++++++++
3 files changed, 69 insertions(+)
diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 97e92c633cfd..95c60d6d7597 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -188,6 +188,54 @@ ssize_t fuse_backing_mmap(struct file *file, struct vm_area_struct *vma)
return ret;
}
+int fuse_file_fallocate_initialize_in(struct bpf_fuse_args *fa,
+ struct fuse_fallocate_in *ffi,
+ struct file *file, int mode, loff_t offset, loff_t length)
+{
+ struct fuse_file *ff = file->private_data;
+
+ *ffi = (struct fuse_fallocate_in) {
+ .fh = ff->fh,
+ .offset = offset,
+ .length = length,
+ .mode = mode,
+ };
+
+ *fa = (struct bpf_fuse_args) {
+ .opcode = FUSE_FALLOCATE,
+ .nodeid = ff->nodeid,
+ .in_numargs = 1,
+ .in_args[0].size = sizeof(*ffi),
+ .in_args[0].value = ffi,
+ };
+
+ return 0;
+}
+
+int fuse_file_fallocate_initialize_out(struct bpf_fuse_args *fa,
+ struct fuse_fallocate_in *ffi,
+ struct file *file, int mode, loff_t offset, loff_t length)
+{
+ return 0;
+}
+
+int fuse_file_fallocate_backing(struct bpf_fuse_args *fa, int *out,
+ struct file *file, int mode, loff_t offset, loff_t length)
+{
+ const struct fuse_fallocate_in *ffi = fa->in_args[0].value;
+ struct fuse_file *ff = file->private_data;
+
+ *out = vfs_fallocate(ff->backing_file, ffi->mode, ffi->offset,
+ ffi->length);
+ return 0;
+}
+
+int fuse_file_fallocate_finalize(struct bpf_fuse_args *fa, int *out,
+ struct file *file, int mode, loff_t offset, loff_t length)
+{
+ return 0;
+}
+
/*******************************************************************************
* Directory operations after here *
******************************************************************************/
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index dd4485261cc7..ef6f6b0b3b59 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3002,6 +3002,16 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
bool block_faults = FUSE_IS_DAX(inode) && lock_inode;
+#ifdef CONFIG_FUSE_BPF
+ if (fuse_bpf_backing(inode, struct fuse_fallocate_in, err,
+ fuse_file_fallocate_initialize_in,
+ fuse_file_fallocate_initialize_out,
+ fuse_file_fallocate_backing,
+ fuse_file_fallocate_finalize,
+ file, mode, offset, length))
+ return err;
+#endif
+
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
FALLOC_FL_ZERO_RANGE))
return -EOPNOTSUPP;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index fc3e8adf0422..0e4996766c6c 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1422,6 +1422,17 @@ int fuse_lseek_finalize(struct bpf_fuse_args *fa, loff_t *out, struct file *file
ssize_t fuse_backing_mmap(struct file *file, struct vm_area_struct *vma);
+int fuse_file_fallocate_initialize_in(struct bpf_fuse_args *fa,
+ struct fuse_fallocate_in *ffi,
+ struct file *file, int mode, loff_t offset, loff_t length);
+int fuse_file_fallocate_initialize_out(struct bpf_fuse_args *fa,
+ struct fuse_fallocate_in *ffi,
+ struct file *file, int mode, loff_t offset, loff_t length);
+int fuse_file_fallocate_backing(struct bpf_fuse_args *fa, int *out,
+ struct file *file, int mode, loff_t offset, loff_t length);
+int fuse_file_fallocate_finalize(struct bpf_fuse_args *fa, int *out,
+ struct file *file, int mode, loff_t offset, loff_t length);
+
struct fuse_lookup_io {
struct fuse_entry_out feo;
struct fuse_entry_bpf feb;
--
2.37.3.998.g577e59143f-goog
next prev parent reply other threads:[~2022-09-26 23:20 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-26 23:17 [PATCH 00/26] FUSE BPF: A Stacked Filesystem Extension for FUSE Daniel Rosenberg
2022-09-26 23:17 ` [PATCH 01/26] bpf: verifier: Allow for multiple packets Daniel Rosenberg
2022-09-26 23:17 ` [PATCH 02/26] bpf: verifier: Allow single packet invalidation Daniel Rosenberg
2022-09-26 23:17 ` [PATCH 03/26] fuse-bpf: Update uapi for fuse-bpf Daniel Rosenberg
2022-09-27 18:19 ` Miklos Szeredi
2022-09-30 22:02 ` Paul Lawrence
2022-10-01 7:47 ` Amir Goldstein
2022-09-26 23:18 ` [PATCH 04/26] fuse-bpf: Add BPF supporting functions Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 05/26] fs: Generic function to convert iocb to rw flags Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 06/26] bpf: Export bpf_prog_fops Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 07/26] fuse-bpf: Prepare for fuse-bpf patch Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 08/26] fuse: Add fuse-bpf, a stacked fs extension for FUSE Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 09/26] fuse-bpf: Don't support export_operations Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 10/26] fuse-bpf: Partially add mapping support Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 11/26] fuse-bpf: Add lseek support Daniel Rosenberg
2022-09-26 23:18 ` Daniel Rosenberg [this message]
2022-09-27 22:07 ` [PATCH 12/26] fuse-bpf: Add support for fallocate Dave Chinner
2022-09-27 23:36 ` Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 13/26] fuse-bpf: Support file/dir open/close Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 14/26] fuse-bpf: Support mknod/unlink/mkdir/rmdir Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 15/26] fuse-bpf: Add support for read/write iter Daniel Rosenberg
2022-10-01 6:53 ` Amir Goldstein
2022-09-26 23:18 ` [PATCH 16/26] fuse-bpf: support FUSE_READDIR Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 17/26] fuse-bpf: Add support for sync operations Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 18/26] fuse-bpf: Add Rename support Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 19/26] fuse-bpf: Add attr support Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 20/26] fuse-bpf: Add support for FUSE_COPY_FILE_RANGE Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 21/26] fuse-bpf: Add xattr support Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 22/26] fuse-bpf: Add symlink/link support Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 23/26] fuse-bpf: allow mounting with no userspace daemon Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 24/26] fuse-bpf: Call bpf for pre/post filters Daniel Rosenberg
2022-09-26 23:18 ` [PATCH 25/26] fuse-bpf: Add userspace " Daniel Rosenberg
2022-09-28 6:41 ` [PATCH 00/26] FUSE BPF: A Stacked Filesystem Extension for FUSE Martin KaFai Lau
2022-09-28 12:31 ` Brian Foster
2022-10-01 0:47 ` Daniel Rosenberg
2022-10-01 0:05 ` Daniel Rosenberg
2022-10-01 0:24 ` Alexei Starovoitov
2022-10-06 1:58 ` Martin KaFai Lau
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