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authorArnd Bergmann <arnd@arndb.de>2018-07-29 15:49:00 -0400
committerTheodore Ts'o <tytso@mit.edu>2018-07-29 15:49:00 -0400
commitaf123b3718592a66a24716ed4724dc214220492b (patch)
tree69a1916bc7447360e6f43e3ba19ce6512eddee65 /fs/ext4/mmp.c
parenta4d2aadca184ece182418950d45ba4ffc7b652d2 (diff)
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 <adilger@dilger.ca> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mmp.c')
-rw-r--r--fs/ext4/mmp.c6
1 files 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);