[PATCH] hugetlbfs: fix error reporting in case of invalid mount options

[PATCH] hugetlbfs: fix error reporting in case of invalid mount options

[René Scharfe]

Hi Linus,

there is not much point in trying to print the mount options after
hugetlbfs_parse_options() went over them.

Since it employs strsep(), it cuts the option string into pieces by
replacing all commas with NUL characters. A following printk() will
always show the first option, only, which could be confusing.

The patch below changes hugetlbfs to not try to echo the string of
mount options in case of an error at all. It wouldn't tell us anything
we didn't know before, anyway.

René



diff -u ./fs/hugetlbfs/inode.c~ ./fs/hugetlbfs/inode.c
--- ./fs/hugetlbfs/inode.c~	2003-06-07 14:21:29.000000000 +0200
+++ ./fs/hugetlbfs/inode.c	2003-06-07 14:21:49.000000000 +0200
@@ -525,7 +525,7 @@
 
 	ret = hugetlbfs_parse_options(data, &config);
 	if (ret) {
-		printk("hugetlbfs: invalid mount options: %s.\n", data);
+		printk(KERN_ERR "hugetlbfs: invalid mount options.\n");
 		return ret;
 	}
 	sb->s_blocksize = PAGE_CACHE_SIZE;

Re: [PATCH] hugetlbfs: fix error reporting in case of invalid mount options

[William Lee Irwin III]

On Sat, Jun 07, 2003 at 02:55:32PM +0200, Ren? Scharfe wrote:
> there is not much point in trying to print the mount options after
> hugetlbfs_parse_options() went over them.
> Since it employs strsep(), it cuts the option string into pieces by
> replacing all commas with NUL characters. A following printk() will
> always show the first option, only, which could be confusing.
> The patch below changes hugetlbfs to not try to echo the string of
> mount options in case of an error at all. It wouldn't tell us anything
> we didn't know before, anyway.

Let's nuke it entirely. All other fs's barf without printk()'ing at all
and kick -EINVAL back to the caller.


-- wli

Re: [PATCH] hugetlbfs: fix error reporting in case of invalid mount options

[René Scharfe]

On Sat, 7 Jun 2003 09:35:21 -0700 William Lee Irwin III <wli@holomorphy.com> wrote:
> Let's nuke it entirely. All other fs's barf without printk()'ing at all
> and kick -EINVAL back to the caller.

Mmmkay, even better. Patch below.

René



diff -u ./fs/hugetlbfs/inode.c~ ./fs/hugetlbfs/inode.c
--- ./fs/hugetlbfs/inode.c~	2003-06-07 19:22:27.000000000 +0200
+++ ./fs/hugetlbfs/inode.c	2003-06-07 19:23:03.000000000 +0200
@@ -524,10 +524,9 @@
 	struct hugetlbfs_config config;
 
 	ret = hugetlbfs_parse_options(data, &config);
-	if (ret) {
-		printk("hugetlbfs: invalid mount options: %s.\n", data);
+	if (ret)
 		return ret;
-	}
+
 	sb->s_blocksize = PAGE_CACHE_SIZE;
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
 	sb->s_magic = HUGETLBFS_MAGIC;

Re: [PATCH] hugetlbfs: fix error reporting in case of invalid mount options

[William Lee Irwin III]

On Sat, 7 Jun 2003 09:35:21 -0700 William Lee Irwin III <wli@holomorphy.com> wrote:
>> Let's nuke it entirely. All other fs's barf without printk()'ing at all
>> and kick -EINVAL back to the caller.

On Sat, Jun 07, 2003 at 07:29:27PM +0200, Ren? Scharfe wrote:
> Mmmkay, even better. Patch below.

Looks good to me. Linus, please apply.


-- wli