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Subject[PATCH] Differentiating names by adding a timestamp.
Date

pstore denominate dumped file as type-psname-id. it makes many file have
the same name if there are many entries in backend have the same id.
So adding a timestamp to file name.

Signed-off-by: Madper Xie <cxie@redhat.com>
---
fs/pstore/inode.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 1282384..bf6ed3a 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -315,32 +315,38 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,

switch (type) {
case PSTORE_TYPE_DMESG:
- sprintf(name, "dmesg-%s-%lld%s", psname, id,
- compressed ? ".enc.z" : "");
+ sprintf(name, "dmesg-%s-%lld-%lld%s", psname, id,
+ timespec_to_ns(&time), compressed ? ".enc.z" : "");
break;
case PSTORE_TYPE_CONSOLE:
- sprintf(name, "console-%s", psname);
+ sprintf(name, "console-%s-%lld", psname, timespec_to_ns(&time));
break;
case PSTORE_TYPE_FTRACE:
- sprintf(name, "ftrace-%s", psname);
+ sprintf(name, "ftrace-%s-%lld", psname, timespec_to_ns(&time));
break;
case PSTORE_TYPE_MCE:
- sprintf(name, "mce-%s-%lld", psname, id);
+ sprintf(name, "mce-%s-%lld-%lld", psname, id,
+ timespec_to_ns(&time));
break;
case PSTORE_TYPE_PPC_RTAS:
- sprintf(name, "rtas-%s-%lld", psname, id);
+ sprintf(name, "rtas-%s-%lld-%lld", psname, id,
+ timespec_to_ns(&time));
break;
case PSTORE_TYPE_PPC_OF:
- sprintf(name, "powerpc-ofw-%s-%lld", psname, id);
+ sprintf(name, "powerpc-ofw-%s-%lld-%lld", psname, id,
+ timespec_to_ns(&time));
break;
case PSTORE_TYPE_PPC_COMMON:
- sprintf(name, "powerpc-common-%s-%lld", psname, id);
+ sprintf(name, "powerpc-common-%s-%lld-%lld", psname, id,
+ timespec_to_ns(&time));
break;
case PSTORE_TYPE_UNKNOWN:
- sprintf(name, "unknown-%s-%lld", psname, id);
+ sprintf(name, "unknown-%s-%lld-%lld", psname, id,
+ timespec_to_ns(&time));
break;
default:
- sprintf(name, "type%d-%s-%lld", type, psname, id);
+ sprintf(name, "type%d-%s-%lld-%lld", type, psname, id,
+ timespec_to_ns(&time));
break;
}

--
1.8.4.1

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