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[SCSI] lpfc 8.3.44: Fix kernel panics from corrupted ndlp list

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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart
2013-12-17 20:29:47 -05:00
committed by James Bottomley
parent 0976e1a650
commit cff261f6bd
8 changed files with 110 additions and 32 deletions
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22
drivers/scsi/lpfc/lpfc_mem.c
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@@ -38,10 +38,28 @@
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_crtn.h"
#include "lpfc_logmsg.h"
#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */
#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */
int
lpfc_mem_alloc_active_rrq_pool_s4(struct lpfc_hba *phba) {
size_t bytes;
int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
if (max_xri <= 0)
return -ENOMEM;
bytes = ((BITS_PER_LONG - 1 + max_xri) / BITS_PER_LONG) *
sizeof(unsigned long);
phba->cfg_rrq_xri_bitmap_sz = bytes;
phba->active_rrq_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE,
bytes);
if (!phba->active_rrq_pool)
return -ENOMEM;
else
return 0;
}
/**
* lpfc_mem_alloc - create and allocate all PCI and memory pools
@@ -209,6 +227,10 @@ lpfc_mem_free(struct lpfc_hba *phba)
/* Free NLP memory pool */
mempool_destroy(phba->nlp_mem_pool);
phba->nlp_mem_pool = NULL;
if (phba->sli_rev == LPFC_SLI_REV4 && phba->active_rrq_pool) {
mempool_destroy(phba->active_rrq_pool);
phba->active_rrq_pool = NULL;
}
/* Free mbox memory pool */
mempool_destroy(phba->mbox_mem_pool);