diff options
| -rw-r--r-- | fs/fuse/Makefile | 3 | ||||
| -rw-r--r-- | fs/fuse/dev.c | 5 | ||||
| -rw-r--r-- | fs/fuse/fuse_trace.h | 132 |
3 files changed, 140 insertions, 0 deletions
diff --git a/fs/fuse/Makefile b/fs/fuse/Makefile index 6e0228c6d0cb..ce0ff7a9007b 100644 --- a/fs/fuse/Makefile +++ b/fs/fuse/Makefile @@ -3,6 +3,9 @@ # Makefile for the FUSE filesystem. # +# Needed for trace events +ccflags-y = -I$(src) + obj-$(CONFIG_FUSE_FS) += fuse.o obj-$(CONFIG_CUSE) += cuse.o obj-$(CONFIG_VIRTIO_FS) += virtiofs.o diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 2364df0324f7..1b6088288a16 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -22,6 +22,9 @@ #include <linux/splice.h> #include <linux/sched.h> +#define CREATE_TRACE_POINTS +#include "fuse_trace.h" + MODULE_ALIAS_MISCDEV(FUSE_MINOR); MODULE_ALIAS("devname:fuse"); @@ -289,6 +292,7 @@ static void fuse_send_one(struct fuse_iqueue *fiq, struct fuse_req *req) req->in.h.len = sizeof(struct fuse_in_header) + fuse_len_args(req->args->in_numargs, (struct fuse_arg *) req->args->in_args); + trace_fuse_request_send(req); fiq->ops->send_req(fiq, req); } @@ -335,6 +339,7 @@ void fuse_request_end(struct fuse_req *req) if (test_and_set_bit(FR_FINISHED, &req->flags)) goto put_request; + trace_fuse_request_end(req); /* * test_and_set_bit() implies smp_mb() between bit * changing and below FR_INTERRUPTED check. Pairs with diff --git a/fs/fuse/fuse_trace.h b/fs/fuse/fuse_trace.h new file mode 100644 index 000000000000..bbe9ddd8c716 --- /dev/null +++ b/fs/fuse/fuse_trace.h @@ -0,0 +1,132 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM fuse + +#if !defined(_TRACE_FUSE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_FUSE_H + +#include <linux/tracepoint.h> + +#define OPCODES \ + EM( FUSE_LOOKUP, "FUSE_LOOKUP") \ + EM( FUSE_FORGET, "FUSE_FORGET") \ + EM( FUSE_GETATTR, "FUSE_GETATTR") \ + EM( FUSE_SETATTR, "FUSE_SETATTR") \ + EM( FUSE_READLINK, "FUSE_READLINK") \ + EM( FUSE_SYMLINK, "FUSE_SYMLINK") \ + EM( FUSE_MKNOD, "FUSE_MKNOD") \ + EM( FUSE_MKDIR, "FUSE_MKDIR") \ + EM( FUSE_UNLINK, "FUSE_UNLINK") \ + EM( FUSE_RMDIR, "FUSE_RMDIR") \ + EM( FUSE_RENAME, "FUSE_RENAME") \ + EM( FUSE_LINK, "FUSE_LINK") \ + EM( FUSE_OPEN, "FUSE_OPEN") \ + EM( FUSE_READ, "FUSE_READ") \ + EM( FUSE_WRITE, "FUSE_WRITE") \ + EM( FUSE_STATFS, "FUSE_STATFS") \ + EM( FUSE_RELEASE, "FUSE_RELEASE") \ + EM( FUSE_FSYNC, "FUSE_FSYNC") \ + EM( FUSE_SETXATTR, "FUSE_SETXATTR") \ + EM( FUSE_GETXATTR, "FUSE_GETXATTR") \ + EM( FUSE_LISTXATTR, "FUSE_LISTXATTR") \ + EM( FUSE_REMOVEXATTR, "FUSE_REMOVEXATTR") \ + EM( FUSE_FLUSH, "FUSE_FLUSH") \ + EM( FUSE_INIT, "FUSE_INIT") \ + EM( FUSE_OPENDIR, "FUSE_OPENDIR") \ + EM( FUSE_READDIR, "FUSE_READDIR") \ + EM( FUSE_RELEASEDIR, "FUSE_RELEASEDIR") \ + EM( FUSE_FSYNCDIR, "FUSE_FSYNCDIR") \ + EM( FUSE_GETLK, "FUSE_GETLK") \ + EM( FUSE_SETLK, "FUSE_SETLK") \ + EM( FUSE_SETLKW, "FUSE_SETLKW") \ + EM( FUSE_ACCESS, "FUSE_ACCESS") \ + EM( FUSE_CREATE, "FUSE_CREATE") \ + EM( FUSE_INTERRUPT, "FUSE_INTERRUPT") \ + EM( FUSE_BMAP, "FUSE_BMAP") \ + EM( FUSE_DESTROY, "FUSE_DESTROY") \ + EM( FUSE_IOCTL, "FUSE_IOCTL") \ + EM( FUSE_POLL, "FUSE_POLL") \ + EM( FUSE_NOTIFY_REPLY, "FUSE_NOTIFY_REPLY") \ + EM( FUSE_BATCH_FORGET, "FUSE_BATCH_FORGET") \ + EM( FUSE_FALLOCATE, "FUSE_FALLOCATE") \ + EM( FUSE_READDIRPLUS, "FUSE_READDIRPLUS") \ + EM( FUSE_RENAME2, "FUSE_RENAME2") \ + EM( FUSE_LSEEK, "FUSE_LSEEK") \ + EM( FUSE_COPY_FILE_RANGE, "FUSE_COPY_FILE_RANGE") \ + EM( FUSE_SETUPMAPPING, "FUSE_SETUPMAPPING") \ + EM( FUSE_REMOVEMAPPING, "FUSE_REMOVEMAPPING") \ + EM( FUSE_SYNCFS, "FUSE_SYNCFS") \ + EM( FUSE_TMPFILE, "FUSE_TMPFILE") \ + EM( FUSE_STATX, "FUSE_STATX") \ + EMe(CUSE_INIT, "CUSE_INIT") + +/* + * This will turn the above table into TRACE_DEFINE_ENUM() for each of the + * entries. + */ +#undef EM +#undef EMe +#define EM(a, b) TRACE_DEFINE_ENUM(a); +#define EMe(a, b) TRACE_DEFINE_ENUM(a); + +OPCODES + +/* Now we redfine it with the table that __print_symbolic needs. */ +#undef EM +#undef EMe +#define EM(a, b) {a, b}, +#define EMe(a, b) {a, b} + +TRACE_EVENT(fuse_request_send, + TP_PROTO(const struct fuse_req *req), + + TP_ARGS(req), + + TP_STRUCT__entry( + __field(dev_t, connection) + __field(uint64_t, unique) + __field(enum fuse_opcode, opcode) + __field(uint32_t, len) + ), + + TP_fast_assign( + __entry->connection = req->fm->fc->dev; + __entry->unique = req->in.h.unique; + __entry->opcode = req->in.h.opcode; + __entry->len = req->in.h.len; + ), + + TP_printk("connection %u req %llu opcode %u (%s) len %u ", + __entry->connection, __entry->unique, __entry->opcode, + __print_symbolic(__entry->opcode, OPCODES), __entry->len) +); + +TRACE_EVENT(fuse_request_end, + TP_PROTO(const struct fuse_req *req), + + TP_ARGS(req), + + TP_STRUCT__entry( + __field(dev_t, connection) + __field(uint64_t, unique) + __field(uint32_t, len) + __field(int32_t, error) + ), + + TP_fast_assign( + __entry->connection = req->fm->fc->dev; + __entry->unique = req->in.h.unique; + __entry->len = req->out.h.len; + __entry->error = req->out.h.error; + ), + + TP_printk("connection %u req %llu len %u error %d", __entry->connection, + __entry->unique, __entry->len, __entry->error) +); + +#endif /* _TRACE_FUSE_H */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE fuse_trace +#include <trace/define_trace.h> |