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-rw-r--r--fs/fuse/fuse_i.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index a80411028254..026c6c0de3f4 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -239,6 +239,11 @@ enum {
FUSE_I_BTIME,
/* Wants or already has page cache IO */
FUSE_I_CACHE_IO_MODE,
+ /*
+ * Client has exclusive access to the inode, either because fs is local
+ * or the fuse server has an exclusive "lease" on distributed fs
+ */
+ FUSE_I_EXCLUSIVE,
};
struct fuse_conn;
@@ -1055,7 +1060,7 @@ static inline struct fuse_conn *get_fuse_conn(struct inode *inode)
return get_fuse_mount_super(inode->i_sb)->fc;
}
-static inline struct fuse_inode *get_fuse_inode(struct inode *inode)
+static inline struct fuse_inode *get_fuse_inode(const struct inode *inode)
{
return container_of(inode, struct fuse_inode, inode);
}
@@ -1097,6 +1102,13 @@ static inline bool fuse_is_bad(struct inode *inode)
return unlikely(test_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state));
}
+static inline bool fuse_inode_is_exclusive(const struct inode *inode)
+{
+ const struct fuse_inode *fi = get_fuse_inode(inode);
+
+ return test_bit(FUSE_I_EXCLUSIVE, &fi->state);
+}
+
static inline struct folio **fuse_folios_alloc(unsigned int nfolios, gfp_t flags,
struct fuse_folio_desc **desc)
{