Messages in this thread Patch in this message | | | From | Yangtao Li <> | Subject | [PATCH] quota: check for register_sysctl() failure when has CONFIG_SYSCTL | Date | Tue, 21 Mar 2023 01:40:58 +0800 |
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Print a message that sysctl registration failed if CONFIG_SYSCTL is enabled, and wrap the fs_dqstats_table array with CONFIG_SYSCTL.
Signed-off-by: Yangtao Li <frank.li@vivo.com> --- fs/quota/dquot.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 90cb70c82012..a16ddda02612 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2879,6 +2879,7 @@ static int do_proc_dqstats(struct ctl_table *table, int write, return proc_doulongvec_minmax(table, write, buffer, lenp, ppos); } +#ifdef CONFIG_SYSCTL static struct ctl_table fs_dqstats_table[] = { { .procname = "lookups", @@ -2947,6 +2948,7 @@ static struct ctl_table fs_dqstats_table[] = { #endif { }, }; +#endif static int __init dquot_init(void) { @@ -2955,7 +2957,10 @@ static int __init dquot_init(void) printk(KERN_NOTICE "VFS: Disk quotas %s\n", __DQUOT_VERSION__); - register_sysctl("fs/quota", fs_dqstats_table); +#ifdef CONFIG_SYSCTL + if (!register_sysctl("fs/quota", fs_dqstats_table)) + pr_notice("quota sysctl registration failed!\n"); +#endif dquot_cachep = kmem_cache_create("dquot", sizeof(struct dquot), sizeof(unsigned long) * 4, -- 2.35.1
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