From af123b3718592a66a24716ed4724dc214220492b Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 29 Jul 2018 15:49:00 -0400 Subject: [PATCH] ext4: use 64-bit timestamps for mmp_time The mmp_time field is 64 bits wide, which is good, but calling get_seconds() results in a 32-bit value on 32-bit architectures. Using ktime_get_real_seconds() instead returns 64 bits everywhere. Reviewed-by: Andreas Dilger Reviewed-by: Jan Kara Signed-off-by: Arnd Bergmann Signed-off-by: Theodore Ts'o --- fs/ext4/mmp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index 638ad4743477..39b07c2d3384 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -147,7 +147,7 @@ static int kmmpd(void *data) mmp_block = le64_to_cpu(es->s_mmp_block); mmp = (struct mmp_struct *)(bh->b_data); - mmp->mmp_time = cpu_to_le64(get_seconds()); + mmp->mmp_time = cpu_to_le64(ktime_get_real_seconds()); /* * Start with the higher mmp_check_interval and reduce it if * the MMP block is being updated on time. @@ -165,7 +165,7 @@ static int kmmpd(void *data) seq = 1; mmp->mmp_seq = cpu_to_le32(seq); - mmp->mmp_time = cpu_to_le64(get_seconds()); + mmp->mmp_time = cpu_to_le64(ktime_get_real_seconds()); last_update_time = jiffies; retval = write_mmp_block(sb, bh); @@ -241,7 +241,7 @@ static int kmmpd(void *data) * Unmount seems to be clean. */ mmp->mmp_seq = cpu_to_le32(EXT4_MMP_SEQ_CLEAN); - mmp->mmp_time = cpu_to_le64(get_seconds()); + mmp->mmp_time = cpu_to_le64(ktime_get_real_seconds()); retval = write_mmp_block(sb, bh); -- 2.20.1