From: Liu ShuoX <shuox.liu@xxxxxxxxx>
Some developers want to output the pstore record trace flexible.
So add seq_ops into ramoops_zone in case users would make private output
format.
Signed-off-by: Zhang Yanmin <yanmin.zhang@xxxxxxxxx>
Signed-off-by: Liu ShuoX <shuox.liu@xxxxxxxxx>
---
fs/pstore/inode.c | 10 ++++++++--
include/linux/pstore_ramoops.h | 1 +
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index d463481..a9c9782 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -207,14 +207,20 @@ static ssize_t pstore_file_read(struct file *file, char __user *userbuf,
static int pstore_file_open(struct inode *inode, struct file *file)
{
struct pstore_private *ps = inode->i_private;
+ struct ramoops_context *cxt = ps->psi->data;
+ struct ramoops_zone *zones = cxt ? cxt->zones : NULL;
struct seq_file *sf;
int err;
const struct seq_operations *sops = NULL;
if (ps->type == PSTORE_TYPE_FTRACE)
sops = &pstore_ftrace_seq_ops;
- if (ps->type == PSTORE_TYPE_NORM)
- sops = &pstore_seq_ops;
+ if (ps->type == PSTORE_TYPE_NORM && zones) {
+ if (zones[ps->id].seq_ops)
+ sops = zones[ps->id].seq_ops;
+ else
+ sops = &pstore_seq_ops;
+ }
err = seq_open(file, sops);
if (err < 0)
diff --git a/include/linux/pstore_ramoops.h b/include/linux/pstore_ramoops.h
index 7c0a64b..9a5a224 100644
--- a/include/linux/pstore_ramoops.h
+++ b/include/linux/pstore_ramoops.h
@@ -32,6 +32,7 @@ struct ramoops_zone {
struct persistent_ram_zone *prz;
int item_size;
void (*print_record)(struct seq_file *s, void *record);
+ struct seq_operations *seq_ops;
};
/*
--
1.8.3.2
--
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