2020-04-16 09:00:15

by [email protected]

[permalink] [raw]
Subject: [PATCH v3] exfat: replace 'time_ms' with 'time_cs'

Replace "time_ms" with "time_cs" in the file directory entry structure
and related functions.

The unit of create_time_ms/modify_time_ms in File Directory Entry are not
'milli-second', but 'centi-second'.
The exfat specification uses the term '10ms', but instead use 'cs' as in
"msdos_fs.h".

Signed-off-by: Tetsuhiro Kohada <[email protected]>
---
Changes in v3:
- change time_10ms to time_cs
- revert calculation formula to original
- change subject & commit-log
- rebase to 'linkinjeon/exfat.git' dev branch
Changes in v2:
- fix spelling mistakes in commit-log.

fs/exfat/dir.c | 8 ++++----
fs/exfat/exfat_fs.h | 4 ++--
fs/exfat/exfat_raw.h | 4 ++--
fs/exfat/file.c | 2 +-
fs/exfat/inode.c | 4 ++--
fs/exfat/misc.c | 18 +++++++++---------
fs/exfat/namei.c | 4 ++--
7 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c
index 53ae965da..b5a237c33 100644
--- a/fs/exfat/dir.c
+++ b/fs/exfat/dir.c
@@ -137,12 +137,12 @@ static int exfat_readdir(struct inode *inode, struct exfat_dir_entry *dir_entry)
ep->dentry.file.create_tz,
ep->dentry.file.create_time,
ep->dentry.file.create_date,
- ep->dentry.file.create_time_ms);
+ ep->dentry.file.create_time_cs);
exfat_get_entry_time(sbi, &dir_entry->mtime,
ep->dentry.file.modify_tz,
ep->dentry.file.modify_time,
ep->dentry.file.modify_date,
- ep->dentry.file.modify_time_ms);
+ ep->dentry.file.modify_time_cs);
exfat_get_entry_time(sbi, &dir_entry->atime,
ep->dentry.file.access_tz,
ep->dentry.file.access_time,
@@ -461,12 +461,12 @@ int exfat_init_dir_entry(struct inode *inode, struct exfat_chain *p_dir,
&ep->dentry.file.create_tz,
&ep->dentry.file.create_time,
&ep->dentry.file.create_date,
- &ep->dentry.file.create_time_ms);
+ &ep->dentry.file.create_time_cs);
exfat_set_entry_time(sbi, &ts,
&ep->dentry.file.modify_tz,
&ep->dentry.file.modify_time,
&ep->dentry.file.modify_date,
- &ep->dentry.file.modify_time_ms);
+ &ep->dentry.file.modify_time_cs);
exfat_set_entry_time(sbi, &ts,
&ep->dentry.file.access_tz,
&ep->dentry.file.access_time,
diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h
index 4ced4c0d9..f619b9250 100644
--- a/fs/exfat/exfat_fs.h
+++ b/fs/exfat/exfat_fs.h
@@ -511,9 +511,9 @@ void exfat_msg(struct super_block *sb, const char *lv, const char *fmt, ...)
exfat_msg(sb, KERN_INFO, fmt, ##__VA_ARGS__)

void exfat_get_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
- u8 tz, __le16 time, __le16 date, u8 time_ms);
+ u8 tz, __le16 time, __le16 date, u8 time_cs);
void exfat_set_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
- u8 *tz, __le16 *time, __le16 *date, u8 *time_ms);
+ u8 *tz, __le16 *time, __le16 *date, u8 *time_cs);
unsigned short exfat_calc_chksum_2byte(void *data, int len,
unsigned short chksum, int type);
void exfat_update_bh(struct super_block *sb, struct buffer_head *bh, int sync);
diff --git a/fs/exfat/exfat_raw.h b/fs/exfat/exfat_raw.h
index 2a841010e..8d6c64a75 100644
--- a/fs/exfat/exfat_raw.h
+++ b/fs/exfat/exfat_raw.h
@@ -136,8 +136,8 @@ struct exfat_dentry {
__le16 modify_date;
__le16 access_time;
__le16 access_date;
- __u8 create_time_ms;
- __u8 modify_time_ms;
+ __u8 create_time_cs;
+ __u8 modify_time_cs;
__u8 create_tz;
__u8 modify_tz;
__u8 access_tz;
diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index 483f68375..5eff50afd 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -165,7 +165,7 @@ int __exfat_truncate(struct inode *inode, loff_t new_size)
&ep->dentry.file.modify_tz,
&ep->dentry.file.modify_time,
&ep->dentry.file.modify_date,
- &ep->dentry.file.modify_time_ms);
+ &ep->dentry.file.modify_time_cs);
ep->dentry.file.attr = cpu_to_le16(ei->attr);

/* File size should be zero if there is no cluster allocated */
diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index 06887492f..3f367d081 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/inode.c
@@ -56,12 +56,12 @@ static int __exfat_write_inode(struct inode *inode, int sync)
&ep->dentry.file.create_tz,
&ep->dentry.file.create_time,
&ep->dentry.file.create_date,
- &ep->dentry.file.create_time_ms);
+ &ep->dentry.file.create_time_cs);
exfat_set_entry_time(sbi, &inode->i_mtime,
&ep->dentry.file.modify_tz,
&ep->dentry.file.modify_time,
&ep->dentry.file.modify_date,
- &ep->dentry.file.modify_time_ms);
+ &ep->dentry.file.modify_time_cs);
exfat_set_entry_time(sbi, &inode->i_atime,
&ep->dentry.file.access_tz,
&ep->dentry.file.access_time,
diff --git a/fs/exfat/misc.c b/fs/exfat/misc.c
index d32beb172..0d521ca24 100644
--- a/fs/exfat/misc.c
+++ b/fs/exfat/misc.c
@@ -75,7 +75,7 @@ static void exfat_adjust_tz(struct timespec64 *ts, u8 tz_off)

/* Convert a EXFAT time/date pair to a UNIX date (seconds since 1 1 70). */
void exfat_get_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
- u8 tz, __le16 time, __le16 date, u8 time_ms)
+ u8 tz, __le16 time, __le16 date, u8 time_cs)
{
u16 t = le16_to_cpu(time);
u16 d = le16_to_cpu(date);
@@ -84,10 +84,10 @@ void exfat_get_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
t >> 11, (t >> 5) & 0x003F, (t & 0x001F) << 1);


- /* time_ms field represent 0 ~ 199(1990 ms) */
- if (time_ms) {
- ts->tv_sec += time_ms / 100;
- ts->tv_nsec = (time_ms % 100) * 10 * NSEC_PER_MSEC;
+ /* time_cs field represent 0 ~ 199cs(1990 ms) */
+ if (time_cs) {
+ ts->tv_sec += time_cs / 100;
+ ts->tv_nsec = (time_cs % 100) * 10 * NSEC_PER_MSEC;
}

if (tz & EXFAT_TZ_VALID)
@@ -100,7 +100,7 @@ void exfat_get_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,

/* Convert linear UNIX date to a EXFAT time/date pair. */
void exfat_set_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
- u8 *tz, __le16 *time, __le16 *date, u8 *time_ms)
+ u8 *tz, __le16 *time, __le16 *date, u8 *time_cs)
{
struct tm tm;
u16 t, d;
@@ -112,9 +112,9 @@ void exfat_set_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
*time = cpu_to_le16(t);
*date = cpu_to_le16(d);

- /* time_ms field represent 0 ~ 199(1990 ms) */
- if (time_ms)
- *time_ms = (tm.tm_sec & 1) * 100 +
+ /* time_cs field represent 0 ~ 199cs(1990 ms) */
+ if (time_cs)
+ *time_cs = (tm.tm_sec & 1) * 100 +
ts->tv_nsec / (10 * NSEC_PER_MSEC);

/*
diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c
index 549274fef..27c0fe5c1 100644
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -687,12 +687,12 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
ep->dentry.file.create_tz,
ep->dentry.file.create_time,
ep->dentry.file.create_date,
- ep->dentry.file.create_time_ms);
+ ep->dentry.file.create_time_cs);
exfat_get_entry_time(sbi, &info->mtime,
ep->dentry.file.modify_tz,
ep->dentry.file.modify_time,
ep->dentry.file.modify_date,
- ep->dentry.file.modify_time_ms);
+ ep->dentry.file.modify_time_cs);
exfat_get_entry_time(sbi, &info->atime,
ep->dentry.file.access_tz,
ep->dentry.file.access_time,
--
2.25.0


2020-04-17 02:43:42

by Namjae Jeon

[permalink] [raw]
Subject: RE: [PATCH v3] exfat: replace 'time_ms' with 'time_cs'

> Replace "time_ms" with "time_cs" in the file directory entry structure
> and related functions.
>
> The unit of create_time_ms/modify_time_ms in File Directory Entry are not
> 'milli-second', but 'centi-second'.
> The exfat specification uses the term '10ms', but instead use 'cs' as in
> "msdos_fs.h".
>
> Signed-off-by: Tetsuhiro Kohada
> <[email protected]>
> ---
I have run checkpatch.pl on your patch.
It give a following warning.

WARNING: Missing Signed-off-by: line by nominal patch author 'Tetsuhiro
Kohada <[email protected]>'
total: 0 errors, 1 warnings, 127 lines checked

Please fix it.
Thanks!

2020-04-20 01:36:23

by Tetsuhiro Kohada

[permalink] [raw]
Subject: Re: [PATCH v3] exfat: replace 'time_ms' with 'time_cs'

On 2020/04/17 11:39, Namjae Jeon wrote:
>> Replace "time_ms" with "time_cs" in the file directory entry structure
>> and related functions.
>>
>> The unit of create_time_ms/modify_time_ms in File Directory Entry are not
>> 'milli-second', but 'centi-second'.
>> The exfat specification uses the term '10ms', but instead use 'cs' as in
>> "msdos_fs.h".
>>
>> Signed-off-by: Tetsuhiro Kohada
>> <[email protected]>
>> ---
> I have run checkpatch.pl on your patch.
> It give a following warning.
>
> WARNING: Missing Signed-off-by: line by nominal patch author 'Tetsuhiro
> Kohada <[email protected]>'
> total: 0 errors, 1 warnings, 127 lines checked
>
> Please fix it.

I want to fix it, but I'm not sure what's wrong.
The my patch has the following line:

Signed-off-by: Tetsuhiro Kohada <[email protected]>

Both my real name and email address are correct.
Can you give me some advice?

*** Currently I can't use office email, so I'm sending it from private email instead.


--
このEメールはアバスト アンチウイルスによりウイルススキャンされています。
https://www.avast.com/antivirus

2020-04-20 02:54:05

by Namjae Jeon

[permalink] [raw]
Subject: RE: [PATCH v3] exfat: replace 'time_ms' with 'time_cs'

> On 2020/04/17 11:39, Namjae Jeon wrote:
> >> Replace "time_ms" with "time_cs" in the file directory entry
> >> structure and related functions.
> >>
> >> The unit of create_time_ms/modify_time_ms in File Directory Entry are
> >> not 'milli-second', but 'centi-second'.
> >> The exfat specification uses the term '10ms', but instead use 'cs' as
> >> in "msdos_fs.h".
> >>
> >> Signed-off-by: Tetsuhiro Kohada
> >> <[email protected]>
> >> ---
> > I have run checkpatch.pl on your patch.
> > It give a following warning.
> >
> > WARNING: Missing Signed-off-by: line by nominal patch author
> > 'Tetsuhiro Kohada <[email protected]>'
> > total: 0 errors, 1 warnings, 127 lines checked
> >
> > Please fix it.
>
> I want to fix it, but I'm not sure what's wrong.
> The my patch has the following line:
>
> Signed-off-by: Tetsuhiro Kohada
> <[email protected]>
>
> Both my real name and email address are correct.
> Can you give me some advice?
Your address in author line of this patch seems to be different with Your Signed-off-by.

From: Tetsuhiro Kohada <[email protected]>
!=
Signed-off-by: Tetsuhiro Kohada <[email protected]>

What is correct one between the two?
I guess you should fix your mail address in your .gitconfig
Or manually add From: your address under subject in your patch like this.
-------------------------------------------------------------------------------
Subject: [PATCH v3] exfat: replace 'time_ms' with 'time_cs'
From: Tetsuhiro Kohada <[email protected]>

Replace "time_ms" with "time_cs" in the file directory entry structure
and related functions.

The unit of create_time_ms/modify_time_ms in File Directory Entry are not
'milli-second', but 'centi-second'.
The exfat specification uses the term '10ms', but instead use 'cs' as in
"msdos_fs.

Signed-off-by: Tetsuhiro Kohada <[email protected]>
--------------------------------------------------------------------------------

>
> *** Currently I can't use office email, so I'm sending it from private
> email instead.
>
>
> --
> このEメールはアバスト アンチウイルスによりウイルススキャンされています。
> https://www.avast.com/antivirus



2020-04-20 08:12:11

by Schmid, Carsten

[permalink] [raw]
Subject: AW: [PATCH v3] exfat: replace 'time_ms' with 'time_cs'

>
> From: Tetsuhiro Kohada <[email protected]>
> !=
> Signed-off-by: Tetsuhiro Kohada
> <[email protected]>
>
MitsubishiElectric != mitsubishielectric

Capital letters matter????

-----------------
Mentor Graphics (Deutschland) GmbH, Arnulfstraße 201, 80634 München / Germany
Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Alexander Walter

2020-04-20 22:34:55

by Tetsuhiro Kohada

[permalink] [raw]
Subject: Re: [PATCH v3] exfat: replace 'time_ms' with 'time_cs'

Thanks for your advise.

On 2020/04/20 11:51, Namjae Jeon wrote:
>> Can you give me some advice?
> Your address in author line of this patch seems to be different with Your Signed-off-by.
>
> From: Tetsuhiro Kohada <[email protected]>
> !=
> Signed-off-by: Tetsuhiro Kohada <[email protected]>
>
> What is correct one between the two?

"dc.MitsubishiElectric.co.jp" is the correct domain name.

> I guess you should fix your mail address in your .gitconfig
> Or manually add From: your address under subject in your patch like this.

Both user.email of .gitconfig and from field in patch use "dc.MitsubishiElectric.co.jp".
I don't know why it changed to lower case.

For now, change to private gmail and post again.

Thanks.