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pstore: Add file extension to pstore file if compressed

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In case decompression fails, add a ".enc.z" to indicate the file has
compressed data. This will help user space utilities to figure
out the file contents.

Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Aruna Balakrishnaiah
2013-08-16 13:53:39 -07:00
committed by Tony Luck
parent adb42f5e10
commit 9ad2cbe0a9
3 changed files with 10 additions and 6 deletions
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4
fs/pstore/platform.c
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@@ -479,13 +479,15 @@ void pstore_get_records(int quiet)
if (unzipped_len > 0) {
buf = big_oops_buf;
size = unzipped_len;
compressed = false;
} else {
pr_err("pstore: decompression failed;"
"returned %d\n", unzipped_len);
compressed = true;
}
}
rc = pstore_mkfile(type, psi->name, id, count, buf,
(size_t)size, time, psi);
compressed, (size_t)size, time, psi);
if (unzipped_len < 0) {
/* Free buffer other than big oops */
kfree(buf);