diff options
| author | Mark Rustad <mark.d.rustad@intel.com> | 2012-04-03 21:24:41 +0400 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-04-07 05:56:43 +0400 |
| commit | e1c4038282c7586c3544542b37872c434669d3ac (patch) | |
| tree | f747aea02b1e52b14ba89bd7606cd4d8bdccc279 /drivers/target/tcm_fc/tcm_fc.h | |
| parent | dd775ae2549217d3ae09363e3edb305d0fa19928 (diff) | |
| download | linux-e1c4038282c7586c3544542b37872c434669d3ac.tar.xz | |
tcm_fc: Add abort flag for gracefully handling exchange timeout
Add abort flag and use it to terminate processing when an exchange
is timed out or is reset. The abort flag is used in place of the
transport_generic_free_cmd function call in the reset and timeout
cases, because calling that function in that context would free
memory that was in use. The aborted flag allows the lifetime to
be managed in a more normal way, while truncating the processing.
This change eliminates a source of memory corruption which
manifested in a variety of ugly ways.
(nab: Drop unused struct fc_exch *ep in ft_recv_seq)
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Acked-by: Kiran Patil <Kiran.patil@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/tcm_fc/tcm_fc.h')
| -rw-r--r-- | drivers/target/tcm_fc/tcm_fc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index 830657908db8..c5eb3c33c3db 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -122,6 +122,7 @@ struct ft_cmd { /* Local sense buffer */ unsigned char ft_sense_buffer[TRANSPORT_SENSE_BUFFER]; u32 was_ddp_setup:1; /* Set only if ddp is setup */ + u32 aborted:1; /* Set if aborted by reset or timeout */ struct scatterlist *sg; /* Set only if DDP is setup */ u32 sg_cnt; /* No. of item in scatterlist */ }; |