Messages in this thread Patch in this message | | | From | Liu ShuoX <> | Subject | [PATCH v3 2/3] pstore: add seq_ops for norm zone | Date | Fri, 4 Apr 2014 11:55:58 +0800 |
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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@intel.com> Signed-off-by: Liu ShuoX <shuox.liu@intel.com> --- 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 423aacc..f021a94 100644 --- a/include/linux/pstore_ramoops.h +++ b/include/linux/pstore_ramoops.h @@ -33,6 +33,7 @@ struct ramoops_zone { int item_size; void (*print_record)(struct seq_file *s, void *record); void *(*get_new_record)(struct persistent_ram_zone *prz); + const struct seq_operations *seq_ops; }; /* -- 1.8.3.2
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