From f5baaf48e3e82b1caf9f5cd1207d4d6feba3a2e5 Mon Sep 17 00:00:00 2001 From: Thomas Bertschinger Date: Mon, 15 Jan 2024 23:41:02 -0700 Subject: move Rust sources to top level, C sources into c_src This moves the Rust sources out of rust_src/ and into the top level. Running the bcachefs executable out of the development tree is now: $ ./target/release/bcachefs command or $ cargo run --profile release -- command instead of "./bcachefs command". Building and installing is still: $ make && make install Signed-off-by: Thomas Bertschinger Signed-off-by: Kent Overstreet --- c_src/include/linux/key.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 c_src/include/linux/key.h (limited to 'c_src/include/linux/key.h') diff --git a/c_src/include/linux/key.h b/c_src/include/linux/key.h new file mode 100644 index 00000000..cc6859a9 --- /dev/null +++ b/c_src/include/linux/key.h @@ -0,0 +1,42 @@ +#ifndef _LINUX_KEY_H +#define _LINUX_KEY_H + +#include +#include +#include + +struct user_key_payload { + size_t datalen; /* length of this data */ + char data[0]; /* actual data */ +}; + +struct key { + atomic_t usage; /* number of references */ + key_serial_t serial; /* key serial number */ + struct rw_semaphore sem; /* change vs change sem */ + struct user_key_payload payload; +}; + +static inline const struct user_key_payload *user_key_payload(const struct key *key) +{ + return &key->payload; +} + +static inline void key_put(struct key *key) +{ + if (atomic_dec_and_test(&key->usage)) + free(key); +} + +static inline struct key *__key_get(struct key *key) +{ + atomic_inc(&key->usage); + return key; +} + +static inline struct key *key_get(struct key *key) +{ + return key ? __key_get(key) : key; +} + +#endif /* _LINUX_KEY_H */ -- cgit v1.2.3