evin/ms-nfs41-client
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ref counting for nfs41_root

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very similar to the issue with nfs41_open_state, an abandoned upcall could outlive its mount. to prevent their nfs41_root from being freed, upcalls need to hold a reference until they're finished. this also keeps all of its clients/sessions/rpc connections alive

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2010-10-27 13:36:22 -04:00 • committed by unknown
parent 006bdfa47a
commit bcc707d3b8
13 changed files with 57 additions and 4 deletions
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9
daemon/upcall.h
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@ -180,6 +180,7 @@ typedef struct __nfs41_upcall {
/* store referenced pointers with the upcall for
* automatic dereferencing on upcall_cleanup();
* see upcall_root_ref() and upcall_open_state_ref() */
nfs41_root *root_ref;
nfs41_open_state *state_ref;
} nfs41_upcall;
@ -222,6 +223,14 @@ void upcall_cleanup(
IN nfs41_upcall *upcall);
static __inline void upcall_root_ref(
IN nfs41_upcall *upcall,
IN nfs41_root *root)
{
nfs41_root_ref(root);
upcall->root_ref = root;
}
static __inline void upcall_open_state_ref(
IN nfs41_upcall *upcall,
IN nfs41_open_state *state)