diff options
| author | James Smart <james.smart@emulex.com> | 2014-06-16 11:01:34 +0530 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2014-06-16 18:24:49 +1000 |
| commit | 78f0d93e250af4c9e1d21f0a272d61c4f41a6235 (patch) | |
| tree | 3d588d3462d35286a99fd20632da50588aef0e3b | |
| parent | 7791c0c1da6f047af5e055b93d2e62c3284598fc (diff) | |
| download | powerpc-78f0d93e250af4c9e1d21f0a272d61c4f41a6235.tar.gz | |
lpfc 8.3.43: Fixed spinlock inversion problem.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
(cherry picked from commit 4902b381c6c99e5edaca1e2549f0a5149d90feec)
Signed-off-by: Sanket Rathi <sanket@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 9e1d5109363cdb..fbe2b08c420fdc 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -15007,6 +15007,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) uint16_t max_rpi, rpi_limit; uint16_t rpi_remaining, lrpi = 0; struct lpfc_rpi_hdr *rpi_hdr; + unsigned long iflag; max_rpi = phba->sli4_hba.max_cfg_param.max_rpi; rpi_limit = phba->sli4_hba.next_rpi; @@ -15015,7 +15016,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) * Fetch the next logical rpi. Because this index is logical, * the driver starts at 0 each time. */ - spin_lock_irq(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0); if (rpi >= rpi_limit) rpi = LPFC_RPI_ALLOC_ERROR; @@ -15031,7 +15032,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) */ if ((rpi == LPFC_RPI_ALLOC_ERROR) && (phba->sli4_hba.rpi_count >= max_rpi)) { - spin_unlock_irq(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); return rpi; } @@ -15040,7 +15041,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) * extents. */ if (!phba->sli4_hba.rpi_hdrs_in_use) { - spin_unlock_irq(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); return rpi; } @@ -15051,7 +15052,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) * how many are supported max by the device. */ rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) { rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); if (!rpi_hdr) { |