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| author | Hannes Reinecke <hare@suse.de> | 2016-05-24 08:11:58 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-07-12 23:16:31 -0400 |
| commit | baa6719f902af9c03e528b08dfb847de295b5137 (patch) | |
| tree | 8ac928054932e15da8feaa5a60b7385ab0787958 /drivers/scsi/scsi_debug.c | |
| parent | scsi: ultrastor.c depends on ISA_DMA_API (diff) | |
| download | linux-baa6719f902af9c03e528b08dfb847de295b5137.tar.gz linux-baa6719f902af9c03e528b08dfb847de295b5137.zip | |
libfc: Update rport reference counting
Originally libfc would just be initializing the refcount to '1', and
using the disc_mutex to synchronize if and when the final put should be
happening. This has a race condition as the mutex might be delayed,
causing other threads to access an invalid structure. This patch
updates the rport reference counting to increase the reference every
time 'rport_lookup' is called, and decreases the reference
correspondingly. This removes the need to hold 'disc_mutex' when
removing the structure, and avoids the above race condition.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Vasu Dev <vasu.dev@intel.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_debug.c')
0 files changed, 0 insertions, 0 deletions