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[98.234.52.230]) by smtp.gmail.com with ESMTPSA id b136sm15732831pfb.73.2019.08.18.10.00.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Aug 2019 10:00:06 -0700 (PDT) From: Deepa Dinamani To: viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, y2038@lists.linaro.org, arnd@arndb.de, anton@enomsg.org, ccross@android.com, keescook@chromium.org, tony.luck@intel.com Subject: [PATCH v8 19/20] pstore: fs superblock limits Date: Sun, 18 Aug 2019 09:58:16 -0700 Message-Id: <20190818165817.32634-20-deepa.kernel@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190818165817.32634-1-deepa.kernel@gmail.com> References: <20190818165817.32634-1-deepa.kernel@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 since 3f8f80f0 ("pstore/ram: Read and write to the 'compressed' flag of pstore"). Signed-off-by: Deepa Dinamani Acked-by: Kees Cook Cc: anton@enomsg.org Cc: ccross@android.com Cc: keescook@chromium.org Cc: tony.luck@intel.com --- fs/pstore/ram.c | 2 ++ 1 file changed, 2 insertions(+) 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; -- 2.17.1