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authorDeepa Dinamani <deepa.kernel@gmail.com>2019-06-24 02:00:01 +0300
committerDeepa Dinamani <deepa.kernel@gmail.com>2019-08-30 18:11:25 +0300
commit83b8a3fbe3aa82ac3c253b698ae6a9be2dbdd5e0 (patch)
tree3de34d350dc04036c6f834552ec2238fb246647d /fs/pstore
parent8833293d0accf2b6a9ddaaafd198f7e1bf1d3dc6 (diff)
downloadlinux-83b8a3fbe3aa82ac3c253b698ae6a9be2dbdd5e0.tar.xz
pstore: fs superblock limits
Leaving granularity at 1ns because it is dependent on the specific attached backing pstore module. ramoops has microsecond resolution. Fix the readback of ramoops fractional timestamp microseconds, which has incorrectly been reporting the value as nanoseconds. Fixes: 3f8f80f0cfeb ("pstore/ram: Read and write to the 'compressed' flag of pstore"). Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Jeff Layton <jlayton@kernel.org> Cc: anton@enomsg.org Cc: ccross@android.com Cc: keescook@chromium.org Cc: tony.luck@intel.com
Diffstat (limited to 'fs/pstore')
-rw-r--r--fs/pstore/ram.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 2bb3468fc93a..8caff834f002 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -144,6 +144,7 @@ static int ramoops_read_kmsg_hdr(char *buffer, struct timespec64 *time,
if (sscanf(buffer, RAMOOPS_KERNMSG_HDR "%lld.%lu-%c\n%n",
(time64_t *)&time->tv_sec, &time->tv_nsec, &data_type,
&header_length) == 3) {
+ time->tv_nsec *= 1000;
if (data_type == 'C')
*compressed = true;
else
@@ -151,6 +152,7 @@ static int ramoops_read_kmsg_hdr(char *buffer, struct timespec64 *time,
} else if (sscanf(buffer, RAMOOPS_KERNMSG_HDR "%lld.%lu\n%n",
(time64_t *)&time->tv_sec, &time->tv_nsec,
&header_length) == 2) {
+ time->tv_nsec *= 1000;
*compressed = false;
} else {
time->tv_sec = 0;