Commit 44ef38f9 authored by Matthew R. Ochs's avatar Matthew R. Ochs Committed by Martin K. Petersen

scsi: cxlflash: Cache owning adapter within context

The context removal routine requires access to the owning adapter
structure to reset the context within the AFU as part of the tear down
sequence. In order to support kref adoption, the owning adapter must be
accessible from the release handler. As the kref framework only provides
the kref reference as the sole parameter, another means is needed to
derive the owning adapter.

As a remedy, the owning adapter reference is saved off within the
context during initialization.
Signed-off-by: default avatarMatthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: default avatarManoj N. Kumar <manoj@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 41b99e1a
...@@ -804,6 +804,7 @@ static void init_context(struct ctx_info *ctxi, struct cxlflash_cfg *cfg, ...@@ -804,6 +804,7 @@ static void init_context(struct ctx_info *ctxi, struct cxlflash_cfg *cfg,
ctxi->lfd = adap_fd; ctxi->lfd = adap_fd;
ctxi->pid = current->tgid; /* tgid = pid */ ctxi->pid = current->tgid; /* tgid = pid */
ctxi->ctx = ctx; ctxi->ctx = ctx;
ctxi->cfg = cfg;
ctxi->file = file; ctxi->file = file;
ctxi->initialized = true; ctxi->initialized = true;
mutex_init(&ctxi->mutex); mutex_init(&ctxi->mutex);
......
...@@ -107,6 +107,7 @@ struct ctx_info { ...@@ -107,6 +107,7 @@ struct ctx_info {
bool err_recovery_active; bool err_recovery_active;
struct mutex mutex; /* Context protection */ struct mutex mutex; /* Context protection */
struct cxl_context *ctx; struct cxl_context *ctx;
struct cxlflash_cfg *cfg;
struct list_head luns; /* LUNs attached to this context */ struct list_head luns; /* LUNs attached to this context */
const struct vm_operations_struct *cxl_mmap_vmops; const struct vm_operations_struct *cxl_mmap_vmops;
struct file *file; struct file *file;
......
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