diff options
Diffstat (limited to 'fs/quota/quota.c')
| -rw-r--r-- | fs/quota/quota.c | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/fs/quota/quota.c b/fs/quota/quota.c index a43bb2c3ceaf..4506c6596347 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -19,8 +19,6 @@ #include <linux/quotaops.h> #include <linux/types.h> #include <linux/writeback.h> -#include <net/netlink.h> -#include <net/genetlink.h> static int check_quotactl_permission(struct super_block *sb, int type, int cmd, qid_t id) @@ -458,94 +456,3 @@ asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special, return ret; } #endif - - -#ifdef CONFIG_QUOTA_NETLINK_INTERFACE - -/* Netlink family structure for quota */ -static struct genl_family quota_genl_family = { - .id = GENL_ID_GENERATE, - .hdrsize = 0, - .name = "VFS_DQUOT", - .version = 1, - .maxattr = QUOTA_NL_A_MAX, -}; - -/** - * quota_send_warning - Send warning to userspace about exceeded quota - * @type: The quota type: USRQQUOTA, GRPQUOTA,... - * @id: The user or group id of the quota that was exceeded - * @dev: The device on which the fs is mounted (sb->s_dev) - * @warntype: The type of the warning: QUOTA_NL_... - * - * This can be used by filesystems (including those which don't use - * dquot) to send a message to userspace relating to quota limits. - * - */ - -void quota_send_warning(short type, unsigned int id, dev_t dev, - const char warntype) -{ - static atomic_t seq; - struct sk_buff *skb; - void *msg_head; - int ret; - int msg_size = 4 * nla_total_size(sizeof(u32)) + - 2 * nla_total_size(sizeof(u64)); - - /* We have to allocate using GFP_NOFS as we are called from a - * filesystem performing write and thus further recursion into - * the fs to free some data could cause deadlocks. */ - skb = genlmsg_new(msg_size, GFP_NOFS); - if (!skb) { - printk(KERN_ERR - "VFS: Not enough memory to send quota warning.\n"); - return; - } - msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq), - "a_genl_family, 0, QUOTA_NL_C_WARNING); - if (!msg_head) { - printk(KERN_ERR - "VFS: Cannot store netlink header in quota warning.\n"); - goto err_out; - } - ret = nla_put_u32(skb, QUOTA_NL_A_QTYPE, type); - if (ret) - goto attr_err_out; - ret = nla_put_u64(skb, QUOTA_NL_A_EXCESS_ID, id); - if (ret) - goto attr_err_out; - ret = nla_put_u32(skb, QUOTA_NL_A_WARNING, warntype); - if (ret) - goto attr_err_out; - ret = nla_put_u32(skb, QUOTA_NL_A_DEV_MAJOR, MAJOR(dev)); - if (ret) - goto attr_err_out; - ret = nla_put_u32(skb, QUOTA_NL_A_DEV_MINOR, MINOR(dev)); - if (ret) - goto attr_err_out; - ret = nla_put_u64(skb, QUOTA_NL_A_CAUSED_ID, current_uid()); - if (ret) - goto attr_err_out; - genlmsg_end(skb, msg_head); - - genlmsg_multicast(skb, 0, quota_genl_family.id, GFP_NOFS); - return; -attr_err_out: - printk(KERN_ERR "VFS: Not enough space to compose quota message!\n"); -err_out: - kfree_skb(skb); -} -EXPORT_SYMBOL(quota_send_warning); - -static int __init quota_init(void) -{ - if (genl_register_family("a_genl_family) != 0) - printk(KERN_ERR - "VFS: Failed to create quota netlink interface.\n"); - return 0; -}; - -module_init(quota_init); -#endif - |