On 05/19/2015 02:08 AM, Brian Norris wrote:
> AFAICT, 'warn_no_part' never takes (and never has? at least, not in the
> git history) taken a value besides 1. It also has a disgruntled warning
> comment next to it, suggesting it shouldn't be there at all.
> 
> Signed-off-by: Brian Norris <[email protected]>
> Cc: Christoph Hellwig <[email protected]>
> Cc: Boaz Harrosh <[email protected]>

Reviewed-by: Boaz Harrosh <[email protected]>

I have also tested it by returning error from read of sector zero.
And the print prints. Of course. No one ever turns it off.

Some comments

> Cc: Jens Axboe <[email protected]>
> ---
> Only compile tested for now, as it's trivial. Just an RFC, since I don't 
> really
> understand the context of why this (or the comment) is here in the first 
> place.
> I just ran across this in code reading.
> 
>  block/partitions/amiga.c | 10 ++++------
>  block/partitions/check.c |  7 ++-----
>  block/partitions/check.h |  2 --
>  3 files changed, 6 insertions(+), 13 deletions(-)
> 
> diff --git a/block/partitions/amiga.c b/block/partitions/amiga.c
> index 2b13533d60a2..9dbf1cec7152 100644
> --- a/block/partitions/amiga.c
> +++ b/block/partitions/amiga.c
> @@ -41,9 +41,8 @@ int amiga_partition(struct parsed_partitions *state)
>                       goto rdb_done;
>               data = read_part_sector(state, blk, &sect);
>               if (!data) {
> -                     if (warn_no_part)
> -                             pr_err("Dev %s: unable to read RDB block %d\n",
> -                                    bdevname(state->bdev, b), blk);
> +                     pr_err("Dev %s: unable to read RDB block %d\n",
> +                            bdevname(state->bdev, b), blk);
>                       res = -1;
>                       goto rdb_done;
>               }
> @@ -84,9 +83,8 @@ int amiga_partition(struct parsed_partitions *state)
>               blk *= blksize; /* Read in terms partition table understands */
>               data = read_part_sector(state, blk, &sect);
>               if (!data) {
> -                     if (warn_no_part)
> -                             pr_err("Dev %s: unable to read partition block 
> %d\n",
> -                                    bdevname(state->bdev, b), blk);
> +                     pr_err("Dev %s: unable to read partition block %d\n",
> +                            bdevname(state->bdev, b), blk);
>                       res = -1;
>                       goto rdb_done;
>               }
> diff --git a/block/partitions/check.c b/block/partitions/check.c
> index 16118d11dbfc..513c601b7874 100644
> --- a/block/partitions/check.c
> +++ b/block/partitions/check.c
> @@ -36,8 +36,6 @@
>  #include "sysv68.h"
>  #include "cmdline.h"
>  
> -int warn_no_part = 1; /*This is ugly: should make genhd removable media 
> aware*/
> -
>  static int (*check_part[])(struct parsed_partitions *) = {
>       /*
>        * Probe partition formats with tables at disk address 0
> @@ -185,9 +183,8 @@ check_partition(struct gendisk *hd, struct block_device 
> *bdev)
>       /* The partition is unrecognized. So report I/O errors if there were 
> any */
>               res = err;
>       if (res) {
> -             if (warn_no_part)
> -                     strlcat(state->pp_buf,
> -                             " unable to read partition table\n", PAGE_SIZE);
> +             strlcat(state->pp_buf,
> +                     " unable to read partition table\n", PAGE_SIZE);

OK I admit this was kind of very dumb before, If theoretically warn_no_part
would be false then the system would print "disk_name:\n" and nothing
else.

But specially now that you are unconditionally printing it. It is better
to just combine the two statements. See suggested patch below:

>               printk(KERN_INFO "%s", state->pp_buf);
>       }
>  
> diff --git a/block/partitions/check.h b/block/partitions/check.h
> index eade17ea910b..e09fac216adc 100644
> --- a/block/partitions/check.h
> +++ b/block/partitions/check.h
> @@ -50,5 +50,3 @@ put_partition(struct parsed_partitions *p, int n, sector_t 
> from, sector_t size)
>       }
>  }
>  
> -extern int warn_no_part;
> -
> 

diff --git a/block/partitions/check.c b/block/partitions/check.c
index 513c601..5fd2b7e 100644
--- a/block/partitions/check.c
+++ b/block/partitions/check.c
@@ -182,11 +182,9 @@ check_partition(struct gendisk *hd, struct block_device 
*bdev)
        if (err)
        /* The partition is unrecognized. So report I/O errors if there were 
any */
                res = err;
-       if (res) {
-               strlcat(state->pp_buf,
-                       " unable to read partition table\n", PAGE_SIZE);
-               printk(KERN_INFO "%s", state->pp_buf);
-       }
+       if (res)
+               printk(KERN_INFO "%s unable to read partition table\n",
+                      state->pp_buf);
 
        free_page((unsigned long)state->pp_buf);
        free_partitions(state);

Thanks
Boaz

--
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/

Reply via email to