Messages in this thread Patch in this message | | | From | Madper Xie <> | Subject | [PATCH 2/2] pstore: Differentiating names by adding count and timestamp | Date | Wed, 30 Oct 2013 17:44:54 +0800 |
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From: Madper Xie <bbboson@gmail.com>
pstore denominates 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 count and timestamp to file name for differentiating.
Signed-off-by: Madper Xie <cxie@redhat.com> --- fs/pstore/inode.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-)
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c index 0ae994c..36b502f 100644 --- a/fs/pstore/inode.c +++ b/fs/pstore/inode.c @@ -285,7 +285,7 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count, int rc = 0; char name[PSTORE_NAMELEN]; struct pstore_private *private, *pos; - unsigned long flags; + unsigned long flags, timestamp; spin_lock_irqsave(&allpstore_lock, flags); list_for_each_entry(pos, &allpstore, list) { @@ -316,35 +316,42 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count, private->count = count; private->psi = psi; memcpy(&private->time, &time, sizeof(struct timespec)); + timestamp = time.tv_sec; switch (type) { case PSTORE_TYPE_DMESG: - sprintf(name, "dmesg-%s-%lld%s", psname, id, - compressed ? ".enc.z" : ""); + sprintf(name, "dmesg-%s-%lld-%d-%ld%s", psname, id, count, + timestamp, compressed ? ".enc.z" : ""); break; case PSTORE_TYPE_CONSOLE: - sprintf(name, "console-%s", psname); + sprintf(name, "console-%s-%d-%ld", psname, count, timestamp); break; case PSTORE_TYPE_FTRACE: - sprintf(name, "ftrace-%s", psname); + sprintf(name, "ftrace-%s-%d-%ld", psname, count, timestamp); break; case PSTORE_TYPE_MCE: - sprintf(name, "mce-%s-%lld", psname, id); + sprintf(name, "mce-%s-%lld-%d-%ld", psname, id, count, + timestamp); break; case PSTORE_TYPE_PPC_RTAS: - sprintf(name, "rtas-%s-%lld", psname, id); + sprintf(name, "rtas-%s-%lld-%d-%ld", psname, id, count, + timestamp); break; case PSTORE_TYPE_PPC_OF: - sprintf(name, "powerpc-ofw-%s-%lld", psname, id); + sprintf(name, "powerpc-ofw-%s-%lld-%d-%ld", psname, id, count, + timestamp); break; case PSTORE_TYPE_PPC_COMMON: - sprintf(name, "powerpc-common-%s-%lld", psname, id); + sprintf(name, "powerpc-common-%s-%lld-%d-%ld", psname, id, + count, timestamp); break; case PSTORE_TYPE_UNKNOWN: - sprintf(name, "unknown-%s-%lld", psname, id); + sprintf(name, "unknown-%s-%lld-%d-%ld", psname, id, count, + timestamp); break; default: - sprintf(name, "type%d-%s-%lld", type, psname, id); + sprintf(name, "type%d-%s-%lld-%d-%ld", type, psname, id, count, + timestamp); break; } -- 1.8.4.2
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