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 17/26] fuse-bpf: Add support for sync operations
Date: Mon, 26 Sep 2022 16:18:13 -0700 [thread overview]
Message-ID: <20220926231822.994383-18-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 | 117 ++++++++++++++++++++++++++++++++++++++++++++++
fs/fuse/dir.c | 8 ++++
fs/fuse/file.c | 17 +++++++
fs/fuse/fuse_i.h | 21 +++++++++
4 files changed, 163 insertions(+)
diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index a31199064dc7..4fd7442c94a1 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -436,6 +436,49 @@ int fuse_release_finalize(struct bpf_fuse_args *fa, int *out,
return 0;
}
+int fuse_flush_initialize_in(struct bpf_fuse_args *fa, struct fuse_flush_in *ffi,
+ struct file *file, fl_owner_t id)
+{
+ struct fuse_file *fuse_file = file->private_data;
+
+ *ffi = (struct fuse_flush_in) {
+ .fh = fuse_file->fh,
+ };
+
+ *fa = (struct bpf_fuse_args) {
+ .nodeid = get_node_id(file->f_inode),
+ .opcode = FUSE_FLUSH,
+ .in_numargs = 1,
+ .in_args[0].size = sizeof(*ffi),
+ .in_args[0].value = ffi,
+ .flags = FUSE_BPF_FORCE,
+ };
+
+ return 0;
+}
+
+int fuse_flush_initialize_out(struct bpf_fuse_args *fa, struct fuse_flush_in *ffi,
+ struct file *file, fl_owner_t id)
+{
+ return 0;
+}
+
+int fuse_flush_backing(struct bpf_fuse_args *fa, int *out, struct file *file, fl_owner_t id)
+{
+ struct fuse_file *fuse_file = file->private_data;
+ struct file *backing_file = fuse_file->backing_file;
+
+ *out = 0;
+ if (backing_file->f_op->flush)
+ *out = backing_file->f_op->flush(backing_file, id);
+ return *out;
+}
+
+int fuse_flush_finalize(struct bpf_fuse_args *fa, int *out, struct file *file, fl_owner_t id)
+{
+ return 0;
+}
+
int fuse_lseek_initialize_in(struct bpf_fuse_args *fa, struct fuse_lseek_io *flio,
struct file *file, loff_t offset, int whence)
{
@@ -510,6 +553,80 @@ int fuse_lseek_finalize(struct bpf_fuse_args *fa, loff_t *out,
return 0;
}
+int fuse_fsync_initialize_in(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync)
+{
+ struct fuse_file *fuse_file = file->private_data;
+
+ *ffi = (struct fuse_fsync_in) {
+ .fh = fuse_file->fh,
+ .fsync_flags = datasync ? FUSE_FSYNC_FDATASYNC : 0,
+ };
+
+ *fa = (struct bpf_fuse_args) {
+ .nodeid = get_fuse_inode(file->f_inode)->nodeid,
+ .opcode = FUSE_FSYNC,
+ .in_numargs = 1,
+ .in_args[0].size = sizeof(*ffi),
+ .in_args[0].value = ffi,
+ .flags = FUSE_BPF_FORCE,
+ };
+
+ return 0;
+}
+
+int fuse_fsync_initialize_out(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync)
+{
+ return 0;
+}
+
+int fuse_fsync_backing(struct bpf_fuse_args *fa, int *out,
+ struct file *file, loff_t start, loff_t end, int datasync)
+{
+ struct fuse_file *fuse_file = file->private_data;
+ struct file *backing_file = fuse_file->backing_file;
+ const struct fuse_fsync_in *ffi = fa->in_args[0].value;
+ int new_datasync = (ffi->fsync_flags & FUSE_FSYNC_FDATASYNC) ? 1 : 0;
+
+ *out = vfs_fsync(backing_file, new_datasync);
+ return 0;
+}
+
+int fuse_fsync_finalize(struct bpf_fuse_args *fa, int *out,
+ struct file *file, loff_t start, loff_t end, int datasync)
+{
+ return 0;
+}
+
+int fuse_dir_fsync_initialize_in(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync)
+{
+ struct fuse_file *fuse_file = file->private_data;
+
+ *ffi = (struct fuse_fsync_in) {
+ .fh = fuse_file->fh,
+ .fsync_flags = datasync ? FUSE_FSYNC_FDATASYNC : 0,
+ };
+
+ *fa = (struct bpf_fuse_args) {
+ .nodeid = get_fuse_inode(file->f_inode)->nodeid,
+ .opcode = FUSE_FSYNCDIR,
+ .in_numargs = 1,
+ .in_args[0].size = sizeof(*ffi),
+ .in_args[0].value = ffi,
+ .flags = FUSE_BPF_FORCE,
+ };
+
+ return 0;
+}
+
+int fuse_dir_fsync_initialize_out(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync)
+{
+ return 0;
+}
+
static inline void fuse_bpf_aio_put(struct fuse_bpf_aio_req *aio_req)
{
if (refcount_dec_and_test(&aio_req->ref))
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index d8237b7a23f2..f159b9a6d305 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1638,6 +1638,14 @@ static int fuse_dir_fsync(struct file *file, loff_t start, loff_t end,
if (fuse_is_bad(inode))
return -EIO;
+#ifdef CONFIG_FUSE_BPF
+ if (fuse_bpf_backing(inode, struct fuse_fsync_in, err,
+ fuse_dir_fsync_initialize_in, fuse_dir_fsync_initialize_out,
+ fuse_fsync_backing, fuse_fsync_finalize,
+ file, start, end, datasync))
+ return err;
+#endif
+
if (fc->no_fsyncdir)
return 0;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 443f1af8a431..fc8f8e3a06b3 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -513,6 +513,15 @@ static int fuse_flush(struct file *file, fl_owner_t id)
FUSE_ARGS(args);
int err;
+#ifdef CONFIG_FUSE_BPF
+ if (fuse_bpf_backing(file->f_inode, struct fuse_flush_in, err,
+ fuse_flush_initialize_in, fuse_flush_initialize_out,
+ fuse_flush_backing,
+ fuse_flush_finalize,
+ file, id))
+ return err;
+#endif
+
if (fuse_is_bad(inode))
return -EIO;
@@ -588,6 +597,14 @@ static int fuse_fsync(struct file *file, loff_t start, loff_t end,
struct fuse_conn *fc = get_fuse_conn(inode);
int err;
+#ifdef CONFIG_FUSE_BPF
+ if (fuse_bpf_backing(inode, struct fuse_fsync_in, err,
+ fuse_fsync_initialize_in, fuse_fsync_initialize_out,
+ fuse_fsync_backing, fuse_fsync_finalize,
+ file, start, end, datasync))
+ return err;
+#endif
+
if (fuse_is_bad(inode))
return -EIO;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 8780a50be244..db769dd0a2e4 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1489,6 +1489,14 @@ int fuse_release_backing(struct bpf_fuse_args *fa, int *out,
int fuse_release_finalize(struct bpf_fuse_args *fa, int *out,
struct inode *inode, struct file *file);
+int fuse_flush_initialize_in(struct bpf_fuse_args *fa, struct fuse_flush_in *ffi,
+ struct file *file, fl_owner_t id);
+int fuse_flush_initialize_out(struct bpf_fuse_args *fa, struct fuse_flush_in *ffi,
+ struct file *file, fl_owner_t id);
+int fuse_flush_backing(struct bpf_fuse_args *fa, int *out, struct file *file, fl_owner_t id);
+int fuse_flush_finalize(struct bpf_fuse_args *fa, int *out,
+ struct file *file, fl_owner_t id);
+
struct fuse_lseek_io {
struct fuse_lseek_in fli;
struct fuse_lseek_out flo;
@@ -1503,6 +1511,19 @@ int fuse_lseek_backing(struct bpf_fuse_args *fa, loff_t *out, struct file *file,
int fuse_lseek_finalize(struct bpf_fuse_args *fa, loff_t *out, struct file *file,
loff_t offset, int whence);
+int fuse_fsync_initialize_in(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync);
+int fuse_fsync_initialize_out(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync);
+int fuse_fsync_backing(struct bpf_fuse_args *fa, int *out,
+ struct file *file, loff_t start, loff_t end, int datasync);
+int fuse_fsync_finalize(struct bpf_fuse_args *fa, int *out,
+ struct file *file, loff_t start, loff_t end, int datasync);
+int fuse_dir_fsync_initialize_in(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync);
+int fuse_dir_fsync_initialize_out(struct bpf_fuse_args *fa, struct fuse_fsync_in *ffi,
+ struct file *file, loff_t start, loff_t end, int datasync);
+
struct fuse_read_iter_out {
uint64_t ret;
};
--
2.37.3.998.g577e59143f-goog
next prev parent reply other threads:[~2022-09-26 23:21 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 ` [PATCH 12/26] fuse-bpf: Add support for fallocate Daniel Rosenberg
2022-09-27 22:07 ` 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 ` Daniel Rosenberg [this message]
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
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=20220926231822.994383-18-drosen@google.com \
--to=drosen@google.com \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=balsini@google.com \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=dvander@google.com \
--cc=haoluo@google.com \
--cc=john.fastabend@gmail.com \
--cc=jolsa@kernel.org \
--cc=kernel-team@android.com \
--cc=kpsingh@kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=martin.lau@linux.dev \
--cc=miklos@szeredi.hu \
--cc=paullawrence@google.com \
--cc=sdf@google.com \
--cc=song@kernel.org \
--cc=sspatil@google.com \
--cc=yhs@fb.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: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox