pstore: Add file extension to pstore file if compressed
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>
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 76bc5c1..4ffb7ab 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -479,13 +479,15 @@
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);