Merge remote-tracking branch 'torvalds/master' into perf/urgent

To pick up more UAPI updates to sync with tools/.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 16 insertions, 23 deletions

diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 345f8061e3b4..e3f5d7f3c8a0 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -296,10 +296,6 @@ static int crypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
 	struct extent_crypt_result ecr;
 	int rc = 0;
 
-	if (!crypt_stat || !crypt_stat->tfm
-	       || !(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED))
-		return -EINVAL;
-
 	if (unlikely(ecryptfs_verbosity > 0)) {
 		ecryptfs_printk(KERN_DEBUG, "Key size [%zd]; key:\n",
 				crypt_stat->key_size);
diff --git a/fs/namespace.c b/fs/namespace.c
index f63337828e1c..c3f1a78ba369 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3855,8 +3855,12 @@ static int can_idmap_mount(const struct mount_kattr *kattr, struct mount *mnt)
 	if (!(m->mnt_sb->s_type->fs_flags & FS_ALLOW_IDMAP))
 		return -EINVAL;
 
+	/* Don't yet support filesystem mountable in user namespaces. */
+	if (m->mnt_sb->s_user_ns != &init_user_ns)
+		return -EINVAL;
+
 	/* We're not controlling the superblock. */
-	if (!ns_capable(m->mnt_sb->s_user_ns, CAP_SYS_ADMIN))
+	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
 	/* Mount has already been visible in the filesystem hierarchy. */
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 4f1373463766..22d904bde6ab 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -288,14 +288,12 @@ static inline void remove_dquot_hash(struct dquot *dquot)
 static struct dquot *find_dquot(unsigned int hashent, struct super_block *sb,
 				struct kqid qid)
 {
-	struct hlist_node *node;
 	struct dquot *dquot;
 
-	hlist_for_each (node, dquot_hash+hashent) {
-		dquot = hlist_entry(node, struct dquot, dq_hash);
+	hlist_for_each_entry(dquot, dquot_hash+hashent, dq_hash)
 		if (dquot->dq_sb == sb && qid_eq(dquot->dq_id, qid))
 			return dquot;
-	}
+
 	return NULL;
 }
 
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 040a1142915f..167b5889db4b 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -114,29 +114,24 @@ static int signalfd_copyinfo(struct signalfd_siginfo __user *uinfo,
 		break;
 	case SIL_FAULT_BNDERR:
 	case SIL_FAULT_PKUERR:
+	case SIL_PERF_EVENT:
 		/*
-		 * Fall through to the SIL_FAULT case.  Both SIL_FAULT_BNDERR
-		 * and SIL_FAULT_PKUERR are only generated by faults that
-		 * deliver them synchronously to userspace.  In case someone
-		 * injects one of these signals and signalfd catches it treat
-		 * it as SIL_FAULT.
+		 * Fall through to the SIL_FAULT case.  SIL_FAULT_BNDERR,
+		 * SIL_FAULT_PKUERR, and SIL_PERF_EVENT are only
+		 * generated by faults that deliver them synchronously to
+		 * userspace.  In case someone injects one of these signals
+		 * and signalfd catches it treat it as SIL_FAULT.
 		 */
 	case SIL_FAULT:
 		new.ssi_addr = (long) kinfo->si_addr;
-#ifdef __ARCH_SI_TRAPNO
-		new.ssi_trapno = kinfo->si_trapno;
-#endif
 		break;
-	case SIL_FAULT_MCEERR:
+	case SIL_FAULT_TRAPNO:
 		new.ssi_addr = (long) kinfo->si_addr;
-#ifdef __ARCH_SI_TRAPNO
 		new.ssi_trapno = kinfo->si_trapno;
-#endif
-		new.ssi_addr_lsb = (short) kinfo->si_addr_lsb;
 		break;
-	case SIL_PERF_EVENT:
+	case SIL_FAULT_MCEERR:
 		new.ssi_addr = (long) kinfo->si_addr;
-		new.ssi_perf = kinfo->si_perf;
+		new.ssi_addr_lsb = (short) kinfo->si_addr_lsb;
 		break;
 	case SIL_CHLD:
 		new.ssi_pid    = kinfo->si_pid;