Re: [PATCH] gfs2: better code for translating characters

2007-08-12 Thread H. Peter Anvin
rae l wrote:
> On 8/13/07, Denis Cheng <[EMAIL PROTECTED]> wrote:
>> the original code could work, but I think this code could work better.
>>
>> Signed-off-by: Denis Cheng <[EMAIL PROTECTED]>
>> ---
>>  fs/gfs2/ops_fstype.c |3 ++-
>>  1 files changed, 2 insertions(+), 1 deletions(-)
>>
>> diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
>> index cf5aa50..b9a7759 100644
>> --- a/fs/gfs2/ops_fstype.c
>> +++ b/fs/gfs2/ops_fstype.c
>> @@ -145,7 +145,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
>> snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto);
>> snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table);
>>
>> -   while ((table = strchr(sdp->sd_table_name, '/')))
>> +   table = sdp->sd_table_name;
>> +   while ((table = strchr(table, '/')))
>> *table = '_';
> Sorry, I don't know what the while loop really means, what's the
> common case that slash character exists? if the '/' appears multiple,
> the latter code would be better; however, if slash appears rarely, the
> original would still be better.
> 

Only if the compiler is stupid.

-hpa
-
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Re: [PATCH] gfs2: better code for translating characters

2007-08-12 Thread rae l
On 8/13/07, Denis Cheng <[EMAIL PROTECTED]> wrote:
> the original code could work, but I think this code could work better.
>
> Signed-off-by: Denis Cheng <[EMAIL PROTECTED]>
> ---
>  fs/gfs2/ops_fstype.c |3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
> index cf5aa50..b9a7759 100644
> --- a/fs/gfs2/ops_fstype.c
> +++ b/fs/gfs2/ops_fstype.c
> @@ -145,7 +145,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
> snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto);
> snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table);
>
> -   while ((table = strchr(sdp->sd_table_name, '/')))
> +   table = sdp->sd_table_name;
> +   while ((table = strchr(table, '/')))
> *table = '_';
Sorry, I don't know what the while loop really means, what's the
common case that slash character exists? if the '/' appears multiple,
the latter code would be better; however, if slash appears rarely, the
original would still be better.

>
>  out:
> --
> 1.5.2.2
>
>


-- 
Denis Cheng
Linux Application Developer

"One of my most productive days was throwing away 1000 lines of code."
 - Ken Thompson.
-
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[PATCH] gfs2: better code for translating characters

2007-08-12 Thread Denis Cheng
the original code could work, but I think this code could work better.

Signed-off-by: Denis Cheng <[EMAIL PROTECTED]>
---
 fs/gfs2/ops_fstype.c |3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index cf5aa50..b9a7759 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -145,7 +145,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto);
snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table);
 
-   while ((table = strchr(sdp->sd_table_name, '/')))
+   table = sdp->sd_table_name;
+   while ((table = strchr(table, '/')))
*table = '_';
 
 out:
-- 
1.5.2.2

-
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[PATCH] gfs2: better code for translating characters

2007-08-12 Thread Denis Cheng
the original code could work, but I think this code could work better.

Signed-off-by: Denis Cheng [EMAIL PROTECTED]
---
 fs/gfs2/ops_fstype.c |3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index cf5aa50..b9a7759 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -145,7 +145,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
snprintf(sdp-sd_proto_name, GFS2_FSNAME_LEN, %s, proto);
snprintf(sdp-sd_table_name, GFS2_FSNAME_LEN, %s, table);
 
-   while ((table = strchr(sdp-sd_table_name, '/')))
+   table = sdp-sd_table_name;
+   while ((table = strchr(table, '/')))
*table = '_';
 
 out:
-- 
1.5.2.2

-
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Re: [PATCH] gfs2: better code for translating characters

2007-08-12 Thread rae l
On 8/13/07, Denis Cheng [EMAIL PROTECTED] wrote:
 the original code could work, but I think this code could work better.

 Signed-off-by: Denis Cheng [EMAIL PROTECTED]
 ---
  fs/gfs2/ops_fstype.c |3 ++-
  1 files changed, 2 insertions(+), 1 deletions(-)

 diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
 index cf5aa50..b9a7759 100644
 --- a/fs/gfs2/ops_fstype.c
 +++ b/fs/gfs2/ops_fstype.c
 @@ -145,7 +145,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
 snprintf(sdp-sd_proto_name, GFS2_FSNAME_LEN, %s, proto);
 snprintf(sdp-sd_table_name, GFS2_FSNAME_LEN, %s, table);

 -   while ((table = strchr(sdp-sd_table_name, '/')))
 +   table = sdp-sd_table_name;
 +   while ((table = strchr(table, '/')))
 *table = '_';
Sorry, I don't know what the while loop really means, what's the
common case that slash character exists? if the '/' appears multiple,
the latter code would be better; however, if slash appears rarely, the
original would still be better.


  out:
 --
 1.5.2.2




-- 
Denis Cheng
Linux Application Developer

One of my most productive days was throwing away 1000 lines of code.
 - Ken Thompson.
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
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Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH] gfs2: better code for translating characters

2007-08-12 Thread H. Peter Anvin
rae l wrote:
 On 8/13/07, Denis Cheng [EMAIL PROTECTED] wrote:
 the original code could work, but I think this code could work better.

 Signed-off-by: Denis Cheng [EMAIL PROTECTED]
 ---
  fs/gfs2/ops_fstype.c |3 ++-
  1 files changed, 2 insertions(+), 1 deletions(-)

 diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
 index cf5aa50..b9a7759 100644
 --- a/fs/gfs2/ops_fstype.c
 +++ b/fs/gfs2/ops_fstype.c
 @@ -145,7 +145,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
 snprintf(sdp-sd_proto_name, GFS2_FSNAME_LEN, %s, proto);
 snprintf(sdp-sd_table_name, GFS2_FSNAME_LEN, %s, table);

 -   while ((table = strchr(sdp-sd_table_name, '/')))
 +   table = sdp-sd_table_name;
 +   while ((table = strchr(table, '/')))
 *table = '_';
 Sorry, I don't know what the while loop really means, what's the
 common case that slash character exists? if the '/' appears multiple,
 the latter code would be better; however, if slash appears rarely, the
 original would still be better.
 

Only if the compiler is stupid.

-hpa
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/