Re: [PATCH] inotify: add error handling for kmem_cache_create

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> 在 2018年6月12日,下午12:22,Zhouyang Jia <jiazhouyang09@xxxxxxxxx> 写道:
> 
> When kmem_cache_create fails, the lack of error-handling code may
> cause unexpected results.
> 
> This patch adds error-handling code after calling kmem_cache_create.

I think SLAB_PANIC can handle this case.

Thanks,
Chengguang.

> 
> Signed-off-by: Zhouyang Jia <jiazhouyang09@xxxxxxxxx>
> ---
> fs/notify/inotify/inotify_user.c | 2 ++
> 1 file changed, 2 insertions(+)
> 
> diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
> index ef32f36..0704bab 100644
> --- a/fs/notify/inotify/inotify_user.c
> +++ b/fs/notify/inotify/inotify_user.c
> @@ -805,6 +805,8 @@ static int __init inotify_user_setup(void)
> 	BUG_ON(hweight32(ALL_INOTIFY_BITS) != 21);
> 
> 	inotify_inode_mark_cachep = KMEM_CACHE(inotify_inode_mark, SLAB_PANIC);
> +	if (!inotify_inode_mark_cachep)
> +		return -ENOMEM;
> 
> 	inotify_max_queued_events = 16384;
> 	init_user_ns.ucount_max[UCOUNT_INOTIFY_INSTANCES] = 128;
> -- 
> 2.7.4
> 




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]

  Powered by Linux