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Subject[PATCH 4/5] FUSE: add fuse_conn->release()
Date
Add fuse_conn->release() so that fuse_conn can be embedded in other
structures. If unspecified, the original action - kfree() - is done.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
fs/fuse/fuse_i.h | 3 +++
fs/fuse/inode.c | 6 +++++-
2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 4795264..67f33e8 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -465,6 +465,9 @@ struct fuse_conn {

/** Version counter for attribute changes */
u64 attr_version;
+
+ /** Called on final put. If implemented, should free the connection */
+ void (*release)(struct fuse_conn *);
};

static inline struct fuse_conn *get_fuse_conn_super(struct super_block *sb)
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 8d092ea..b99bb95 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -543,7 +543,11 @@ void fuse_conn_put(struct fuse_conn *fc)
fuse_request_free(fc->destroy_req);
mutex_destroy(&fc->inst_mutex);
bdi_destroy(&fc->bdi);
- kfree(fc);
+
+ if (fc->release)
+ fc->release(fc);
+ else
+ kfree(fc);
}
}
EXPORT_SYMBOL_GPL(fuse_conn_put);
--
1.5.4.5


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