From 5ceb0b05cb48e6cfa2c81160df9f1212623e86eb Mon Sep 17 00:00:00 2001 From: Luis Henriques Date: Thu, 22 May 2025 15:15:15 +0100 Subject: fuse: add support to FUSE_NOTIFY_INC_EPOCH This patch adds support for the FUSE INC_EPOCH notify. This new operation simply increments the FUSE connection epoch value, allowing to invalidate all the dentries next time they are revalidated. Signed-off-by: Luis Henriques --- include/fuse_lowlevel.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/fuse_lowlevel.h') 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 @@ -1744,6 +1744,20 @@ int fuse_lowlevel_notify_poll(struct fuse_pollhandle *ph); 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 * -- cgit v1.2.3