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authorJames Smart <james.smart@emulex.com>2013-10-10 12:20:35 -0400
committerJames Bottomley <JBottomley@Parallels.com>2013-10-25 09:58:17 +0100
commit4902b381c6c99e5edaca1e2549f0a5149d90feec (patch)
tree1d9918123ebea6427bff3b727cb2078b7b9a2f8a
parentf7bc6434e20589596efbc1fc2bde6d0d78d6168c (diff)
downloadop-kernel-dev-4902b381c6c99e5edaca1e2549f0a5149d90feec.zip
op-kernel-dev-4902b381c6c99e5edaca1e2549f0a5149d90feec.tar.gz
[SCSI] 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>
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 612f489..5efe12e 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -15098,6 +15098,7 @@ 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;
@@ -15106,7 +15107,7 @@ 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;
@@ -15122,7 +15123,7 @@ 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;
}
@@ -15131,7 +15132,7 @@ 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;
}
@@ -15142,7 +15143,7 @@ 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) {
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