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authorMiklos Szeredi <mszeredi@suse.cz>2015-07-01 17:26:08 +0300
committerMiklos Szeredi <mszeredi@suse.cz>2015-07-01 17:26:08 +0300
commitcc080e9e9be16ccf26135d366d7d2b65209f1d56 (patch)
tree7983dc5634462fb3ee0306827a1dd68f137cc316 /fs/fuse/fuse_i.h
parent00c570f4ba43ae73b41fa0a2269c3b0ac20386ef (diff)
downloadlinux-cc080e9e9be16ccf26135d366d7d2b65209f1d56.tar.xz
fuse: introduce per-instance fuse_dev structure
Allow fuse device clones to refer to be distinguished. This patch just adds the infrastructure by associating a separate "struct fuse_dev" with each clone. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Diffstat (limited to 'fs/fuse/fuse_i.h')
-rw-r--r--fs/fuse/fuse_i.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index a9507fd97d5e..42d59cbd47e7 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -418,6 +418,17 @@ struct fuse_pqueue {
};
/**
+ * Fuse device instance
+ */
+struct fuse_dev {
+ /** Fuse connection for this device */
+ struct fuse_conn *fc;
+
+ /** list entry on fc->devices */
+ struct list_head entry;
+};
+
+/**
* A Fuse connection.
*
* This structure is created, when the filesystem is mounted, and is
@@ -629,6 +640,9 @@ struct fuse_conn {
/** Read/write semaphore to hold when accessing sb. */
struct rw_semaphore killsb;
+
+ /** List of device instances belonging to this connection */
+ struct list_head devices;
};
static inline struct fuse_conn *get_fuse_conn_super(struct super_block *sb)
@@ -841,6 +855,9 @@ void fuse_conn_init(struct fuse_conn *fc);
*/
void fuse_conn_put(struct fuse_conn *fc);
+struct fuse_dev *fuse_dev_alloc(struct fuse_conn *fc);
+void fuse_dev_free(struct fuse_dev *fud);
+
/**
* Add connection to control filesystem
*/