diff options
| -rw-r--r-- | include/fuse_kernel.h | 6 | ||||
| -rw-r--r-- | include/fuse_lowlevel.h | 14 | ||||
| -rw-r--r-- | lib/fuse_lowlevel.c | 13 | ||||
| -rw-r--r-- | lib/fuse_versionscript | 1 |
4 files changed, 33 insertions, 1 deletions
diff --git a/include/fuse_kernel.h b/include/fuse_kernel.h index 42db04c..122d658 100644 --- a/include/fuse_kernel.h +++ b/include/fuse_kernel.h @@ -232,6 +232,9 @@ * * 7.43 * - add FUSE_REQUEST_TIMEOUT + * + * 7.44 + * - add FUSE_NOTIFY_INC_EPOCH */ #ifndef _LINUX_FUSE_H @@ -267,7 +270,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 42 +#define FUSE_KERNEL_MINOR_VERSION 44 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -671,6 +674,7 @@ enum fuse_notify_code { FUSE_NOTIFY_RETRIEVE = 5, FUSE_NOTIFY_DELETE = 6, FUSE_NOTIFY_RESEND = 7, + FUSE_NOTIFY_INC_EPOCH = 8, FUSE_NOTIFY_CODE_MAX, }; diff --git a/include/fuse_lowlevel.h b/include/fuse_lowlevel.h index 138a784..82f4a8d 100644 --- a/include/fuse_lowlevel.h +++ b/include/fuse_lowlevel.h @@ -1745,6 +1745,20 @@ int fuse_lowlevel_notify_inval_inode(struct fuse_session *se, fuse_ino_t ino, off_t off, off_t len); /** + * Notify to increment the epoch for the current + * + * Each fuse connection has an 'epoch', which is initialized during INIT. + * Caching will then be validated against the epoch value: if the current epoch + * is higher than an object being revalidated, the object is invalid. + * + * This function simply increment the current epoch value. + * + * @param se the session object + * @return zero for success, -errno for failure + */ +int fuse_lowlevel_notify_increment_epoch(struct fuse_session *se); + +/** * Notify to invalidate parent attributes and the dentry matching parent/name * * To avoid a deadlock this function must not be called in the diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c index 5568786..13c05c6 100644 --- a/lib/fuse_lowlevel.c +++ b/lib/fuse_lowlevel.c @@ -2973,6 +2973,19 @@ int fuse_lowlevel_notify_inval_inode(struct fuse_session *se, fuse_ino_t ino, return send_notify_iov(se, FUSE_NOTIFY_INVAL_INODE, iov, 2); } +int fuse_lowlevel_notify_increment_epoch(struct fuse_session *se) +{ + struct iovec iov[1]; + + if (!se) + return -EINVAL; + + if (se->conn.proto_minor < 44) + return -ENOSYS; + + return send_notify_iov(se, FUSE_NOTIFY_INC_EPOCH, iov, 1); +} + /** * Notify parent attributes and the dentry matching parent/name * diff --git a/lib/fuse_versionscript b/lib/fuse_versionscript index ab57d7c..2d8884d 100644 --- a/lib/fuse_versionscript +++ b/lib/fuse_versionscript @@ -208,6 +208,7 @@ FUSE_3.18 { fuse_set_feature_flag; fuse_unset_feature_flag; fuse_get_feature_flag; + fuse_lowlevel_notify_increment_epoch; # Not part of public API, for internal test use only fuse_convert_to_conn_want_ext; |