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8e0e14b5e0
had the wrong version of 22-lport-notify. This corrects that. git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2845 d57e44dd-8a1f-0410-8b47-8ef2f437770f
72 lines
2.1 KiB
Plaintext
72 lines
2.1 KiB
Plaintext
libfc: export seq_release() for users of seq_assign()
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Target modules using lport->tt.seq_assign() get a hold on the
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exchange but have no way of releasing it. Add that.
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Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
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---
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drivers/scsi/libfc/fc_exch.c | 14 ++++++++++++++
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include/scsi/libfc.h | 7 +++++++
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2 files changed, 21 insertions(+), 0 deletions(-)
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---
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diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
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index 0000ddf..0deb901 100644
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--- a/drivers/scsi/libfc/fc_exch.c
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+++ b/drivers/scsi/libfc/fc_exch.c
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@@ -1252,6 +1252,8 @@ free:
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* @fp: The request frame
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*
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* On success, the sequence pointer will be returned and also in fr_seq(@fp).
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+ * A reference will be held on the exchange/sequence for the caller, which
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+ * must call fc_seq_release().
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*/
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static struct fc_seq *fc_seq_assign(struct fc_lport *lport, struct fc_frame *fp)
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{
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@@ -1269,6 +1271,15 @@ static struct fc_seq *fc_seq_assign(struct fc_lport *lport, struct fc_frame *fp)
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}
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/**
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+ * fc_seq_release() - Release the hold
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+ * @sp: The sequence.
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+ */
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+static void fc_seq_release(struct fc_seq *sp)
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+{
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+ fc_exch_release(fc_seq_exch(sp));
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+}
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+
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+/**
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* fc_exch_recv_req() - Handler for an incoming request
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* @lport: The local port that received the request
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* @mp: The EM that the exchange is on
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@@ -2337,6 +2348,9 @@ int fc_exch_init(struct fc_lport *lport)
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if (!lport->tt.seq_assign)
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lport->tt.seq_assign = fc_seq_assign;
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+ if (!lport->tt.seq_release)
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+ lport->tt.seq_release = fc_seq_release;
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+
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return 0;
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}
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EXPORT_SYMBOL(fc_exch_init);
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diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
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index af8a6e8..875e3a8 100644
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--- a/include/scsi/libfc.h
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+++ b/include/scsi/libfc.h
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@@ -574,6 +574,13 @@ struct libfc_function_template {
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void *arg);
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/*
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+ * Release the reference on the sequence returned by seq_assign().
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+ *
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+ * STATUS: OPTIONAL
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+ */
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+ void (*seq_release)(struct fc_seq *);
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+
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+ /*
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* Reset an exchange manager, completing all sequences and exchanges.
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* If s_id is non-zero, reset only exchanges originating from that FID.
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* If d_id is non-zero, reset only exchanges sending to that FID.
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