* [PATCH] mount: remove redundant panic() in mnt_init()
@ 2026-07-20 11:23 Hamza Mahfooz
2026-07-20 11:51 ` Jori Koolstra
0 siblings, 1 reply; 2+ messages in thread
From: Hamza Mahfooz @ 2026-07-20 11:23 UTC (permalink / raw)
To: linux-fsdevel
Cc: Alexander Viro, Christian Brauner, Jan Kara, linux-kernel,
Hamza Mahfooz
Since at least as far back as commit 0818bf27c05b ("resizable
namespace.c hashes"), we call alloc_large_system_hash() in
mnt_init() which already panics if the table is NULL.
Signed-off-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
---
fs/namespace.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index fe919abd2f01..43de01ce023e 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -6248,9 +6248,6 @@ void __init mnt_init(void)
HASH_ZERO,
&mp_hash_shift, &mp_hash_mask, 0, 0);
- if (!mount_hashtable || !mountpoint_hashtable)
- panic("Failed to allocate mount hash table\n");
-
kernfs_init();
err = sysfs_init();
--
2.55.0
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] mount: remove redundant panic() in mnt_init()
2026-07-20 11:23 [PATCH] mount: remove redundant panic() in mnt_init() Hamza Mahfooz
@ 2026-07-20 11:51 ` Jori Koolstra
0 siblings, 0 replies; 2+ messages in thread
From: Jori Koolstra @ 2026-07-20 11:51 UTC (permalink / raw)
To: Hamza Mahfooz
Cc: linux-fsdevel, Alexander Viro, Christian Brauner, Jan Kara,
linux-kernel
On Mon, Jul 20, 2026 at 07:23:31AM -0400, Hamza Mahfooz wrote:
> Since at least as far back as commit 0818bf27c05b ("resizable
> namespace.c hashes"), we call alloc_large_system_hash() in
> mnt_init() which already panics if the table is NULL.
>
> Signed-off-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
> ---
> fs/namespace.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/fs/namespace.c b/fs/namespace.c
> index fe919abd2f01..43de01ce023e 100644
> --- a/fs/namespace.c
> +++ b/fs/namespace.c
> @@ -6248,9 +6248,6 @@ void __init mnt_init(void)
> HASH_ZERO,
> &mp_hash_shift, &mp_hash_mask, 0, 0);
>
> - if (!mount_hashtable || !mountpoint_hashtable)
> - panic("Failed to allocate mount hash table\n");
> -
> kernfs_init();
>
> err = sysfs_init();
> --
> 2.55.0
>
There isn't a reasonable way to return from this, and I see the other
uses of alloc_large_system_hash() also don't check for NULL, so this
is an OK clean-up.
Reviewed-by: Jori Koolstra <jkoolstra@xs4all.nl>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2026-07-20 11:23 [PATCH] mount: remove redundant panic() in mnt_init() Hamza Mahfooz
2026-07-20 11:51 ` Jori Koolstra
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