Merge branch 'akpm' (patches from Andrew)

Merge more updates from Andrew Morton:
 "VM:
   - z3fold fixes and enhancements by Henry Burns and Vitaly Wool

   - more accurate reclaimed slab caches calculations by Yafang Shao

   - fix MAP_UNINITIALIZED UAPI symbol to not depend on config, by
     Christoph Hellwig

   - !CONFIG_MMU fixes by Christoph Hellwig

   - new novmcoredd parameter to omit device dumps from vmcore, by
     Kairui Song

   - new test_meminit module for testing heap and pagealloc
     initialization, by Alexander Potapenko

   - ioremap improvements for huge mappings, by Anshuman Khandual

   - generalize kprobe page fault handling, by Anshuman Khandual

   - device-dax hotplug fixes and improvements, by Pavel Tatashin

   - enable synchronous DAX fault on powerpc, by Aneesh Kumar K.V

   - add pte_devmap() support for arm64, by Robin Murphy

   - unify locked_vm accounting with a helper, by Daniel Jordan

   - several misc fixes

  core/lib:
   - new typeof_member() macro including some users, by Alexey Dobriyan

   - make BIT() and GENMASK() available in asm, by Masahiro Yamada

   - changed LIST_POISON2 on x86_64 to 0xdead000000000122 for better
     code generation, by Alexey Dobriyan

   - rbtree code size optimizations, by Michel Lespinasse

   - convert struct pid count to refcount_t, by Joel Fernandes

  get_maintainer.pl:
   - add --no-moderated switch to skip moderated ML's, by Joe Perches

  misc:
   - ptrace PTRACE_GET_SYSCALL_INFO interface

   - coda updates

   - gdb scripts, various"

[ Using merge message suggestion from Vlastimil Babka, with some editing - Linus ]

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (100 commits)
  fs/select.c: use struct_size() in kmalloc()
  mm: add account_locked_vm utility function
  arm64: mm: implement pte_devmap support
  mm: introduce ARCH_HAS_PTE_DEVMAP
  mm: clean up is_device_*_page() definitions
  mm/mmap: move common defines to mman-common.h
  mm: move MAP_SYNC to asm-generic/mman-common.h
  device-dax: "Hotremove" persistent memory that is used like normal RAM
  mm/hotplug: make remove_memory() interface usable
  device-dax: fix memory and resource leak if hotplug fails
  include/linux/lz4.h: fix spelling and copy-paste errors in documentation
  ipc/mqueue.c: only perform resource calculation if user valid
  include/asm-generic/bug.h: fix "cut here" for WARN_ON for __WARN_TAINT architectures
  scripts/gdb: add helpers to find and list devices
  scripts/gdb: add lx-genpd-summary command
  drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
  kernel/pid.c: convert struct pid count to refcount_t
  drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings
  select: shift restore_saved_sigmask_unless() into poll_select_copy_remaining()
  select: change do_poll() to return -ERESTARTNOHAND rather than -EINTR
  ...

29 files changed, 491 insertions, 253 deletions

diff --git a/fs/aio.c b/fs/aio.c
index 2d405733a8c6..8327db0c8e08 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -2094,7 +2094,6 @@ SYSCALL_DEFINE6(io_pgetevents,
 		const struct __aio_sigset __user *, usig)
 {
 	struct __aio_sigset	ksig = { NULL, };
-	sigset_t		ksigmask, sigsaved;
 	struct timespec64	ts;
 	bool interrupted;
 	int ret;
@@ -2105,14 +2104,14 @@ SYSCALL_DEFINE6(io_pgetevents,
 	if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
 		return -EFAULT;
 
-	ret = set_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+	ret = set_user_sigmask(ksig.sigmask, ksig.sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
 
 	interrupted = signal_pending(current);
-	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	restore_saved_sigmask_unless(interrupted);
 	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
@@ -2130,7 +2129,6 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
 		const struct __aio_sigset __user *, usig)
 {
 	struct __aio_sigset	ksig = { NULL, };
-	sigset_t		ksigmask, sigsaved;
 	struct timespec64	ts;
 	bool interrupted;
 	int ret;
@@ -2142,14 +2140,14 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
 		return -EFAULT;
 
 
-	ret = set_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+	ret = set_user_sigmask(ksig.sigmask, ksig.sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
 
 	interrupted = signal_pending(current);
-	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	restore_saved_sigmask_unless(interrupted);
 	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
@@ -2198,7 +2196,6 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
 		const struct __compat_aio_sigset __user *, usig)
 {
 	struct __compat_aio_sigset ksig = { NULL, };
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 t;
 	bool interrupted;
 	int ret;
@@ -2209,14 +2206,14 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
 	if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
 		return -EFAULT;
 
-	ret = set_compat_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+	ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
 
 	interrupted = signal_pending(current);
-	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	restore_saved_sigmask_unless(interrupted);
 	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
@@ -2234,7 +2231,6 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
 		const struct __compat_aio_sigset __user *, usig)
 {
 	struct __compat_aio_sigset ksig = { NULL, };
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 t;
 	bool interrupted;
 	int ret;
@@ -2245,14 +2241,14 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
 	if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
 		return -EFAULT;
 
-	ret = set_compat_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+	ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
 
 	interrupted = signal_pending(current);
-	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	restore_saved_sigmask_unless(interrupted);
 	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 8264b468f283..d4e11b2e04f6 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1127,7 +1127,6 @@ out_free_interp:
 			  load_addr, interp_load_addr);
 	if (retval < 0)
 		goto out;
-	/* N.B. passed_fileno might not be initialized? */
 	current->mm->end_code = end_code;
 	current->mm->start_code = start_code;
 	current->mm->start_data = start_data;
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 8c6b50f34466..831a2b25ba79 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -431,7 +431,6 @@ static int load_flat_file(struct linux_binprm *bprm,
 	unsigned long len, memp, memp_size, extra, rlim;
 	__be32 __user *reloc;
 	u32 __user *rp;
-	struct inode *inode;
 	int i, rev, relocs;
 	loff_t fpos;
 	unsigned long start_code, end_code;
@@ -439,7 +438,6 @@ static int load_flat_file(struct linux_binprm *bprm,
 	int ret;
 
 	hdr = ((struct flat_hdr *) bprm->buf);		/* exec-header */
-	inode = file_inode(bprm->file);
 
 	text_len  = ntohl(hdr->data_start);
 	data_len  = ntohl(hdr->data_end) - ntohl(hdr->data_start);
diff --git a/fs/coda/Makefile b/fs/coda/Makefile
index 1ce66819da2a..78befb8369c9 100644
--- a/fs/coda/Makefile
+++ b/fs/coda/Makefile
@@ -6,7 +6,8 @@
 obj-$(CONFIG_CODA_FS) += coda.o
 
 coda-objs := psdev.o cache.o cnode.o inode.o dir.o file.o upcall.o \
-	     coda_linux.o symlink.o pioctl.o sysctl.o 
+	     coda_linux.o symlink.o pioctl.o
+coda-$(CONFIG_SYSCTL) += sysctl.o
 
 # If you want debugging output, please uncomment the following line.
 
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 201fc08a8b4f..3b8c4513118f 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -21,7 +21,7 @@
 #include <linux/spinlock.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
 #include "coda_linux.h"
 #include "coda_cache.h"
 
diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c
index 845b5a66952a..06855f6c7902 100644
--- a/fs/coda/cnode.c
+++ b/fs/coda/cnode.c
@@ -8,8 +8,8 @@
 #include <linux/time.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
 #include <linux/pagemap.h>
+#include "coda_psdev.h"
 #include "coda_linux.h"
 
 static inline int coda_fideq(struct CodaFid *fid1, struct CodaFid *fid2)
@@ -137,11 +137,6 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb)
 	struct inode *inode;
 	unsigned long hash = coda_f2i(fid);
 
-	if ( !sb ) {
-		pr_warn("%s: no sb!\n", __func__);
-		return NULL;
-	}
-
 	inode = ilookup5(sb, hash, coda_test_inode, fid);
 	if ( !inode )
 		return NULL;
@@ -153,6 +148,16 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb)
 	return inode;
 }
 
+struct coda_file_info *coda_ftoc(struct file *file)
+{
+	struct coda_file_info *cfi = file->private_data;
+
+	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+
+	return cfi;
+
+}
+
 /* the CONTROL inode is made without asking attributes from Venus */
 struct inode *coda_cnode_makectl(struct super_block *sb)
 {
diff --git a/fs/coda/coda_fs_i.h b/fs/coda/coda_fs_i.h
index d702ba1a2bf9..1763ff95d865 100644
--- a/fs/coda/coda_fs_i.h
+++ b/fs/coda/coda_fs_i.h
@@ -40,10 +40,9 @@ struct coda_file_info {
 	int		   cfi_magic;	  /* magic number */
 	struct file	  *cfi_container; /* container file for this cnode */
 	unsigned int	   cfi_mapcount;  /* nr of times this file is mapped */
+	bool		   cfi_access_intent; /* is access intent supported */
 };
 
-#define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data))
-
 /* flags */
 #define C_VATTR       0x1   /* Validity of vattr in inode */
 #define C_FLUSH       0x2   /* used after a flush */
@@ -54,6 +53,7 @@ struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
 struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
 struct inode *coda_cnode_makectl(struct super_block *sb);
 struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
+struct coda_file_info *coda_ftoc(struct file *file);
 void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
 
 #endif
diff --git a/fs/coda/coda_int.h b/fs/coda/coda_int.h
index bb0b3e0ed6c2..f82b59c9dd28 100644
--- a/fs/coda/coda_int.h
+++ b/fs/coda/coda_int.h
@@ -13,9 +13,19 @@ extern int coda_fake_statfs;
 void coda_destroy_inodecache(void);
 int __init coda_init_inodecache(void);
 int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync);
+
+#ifdef CONFIG_SYSCTL
 void coda_sysctl_init(void);
 void coda_sysctl_clean(void);
+#else
+static inline void coda_sysctl_init(void)
+{
+}
 
+static inline void coda_sysctl_clean(void)
+{
+}
+#endif
 #endif  /*  _CODA_INT_  */
 
 
diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c
index f3d543dd9a98..2e1a5a192074 100644
--- a/fs/coda/coda_linux.c
+++ b/fs/coda/coda_linux.c
@@ -18,7 +18,7 @@
 #include <linux/string.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
 #include "coda_linux.h"
 
 /* initialize the debugging variables */
@@ -66,6 +66,25 @@ unsigned short coda_flags_to_cflags(unsigned short flags)
 	return coda_flags;
 }
 
+static struct timespec64 coda_to_timespec64(struct coda_timespec ts)
+{
+	struct timespec64 ts64 = {
+		.tv_sec = ts.tv_sec,
+		.tv_nsec = ts.tv_nsec,
+	};
+
+	return ts64;
+}
+
+static struct coda_timespec timespec64_to_coda(struct timespec64 ts64)
+{
+	struct coda_timespec ts = {
+		.tv_sec = ts64.tv_sec,
+		.tv_nsec = ts64.tv_nsec,
+	};
+
+	return ts;
+}
 
 /* utility functions below */
 void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr)
@@ -105,11 +124,11 @@ void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr)
 	if (attr->va_size != -1)
 		inode->i_blocks = (attr->va_size + 511) >> 9;
 	if (attr->va_atime.tv_sec != -1) 
-		inode->i_atime = timespec_to_timespec64(attr->va_atime);
+		inode->i_atime = coda_to_timespec64(attr->va_atime);
 	if (attr->va_mtime.tv_sec != -1)
-		inode->i_mtime = timespec_to_timespec64(attr->va_mtime);
+		inode->i_mtime = coda_to_timespec64(attr->va_mtime);
         if (attr->va_ctime.tv_sec != -1)
-		inode->i_ctime = timespec_to_timespec64(attr->va_ctime);
+		inode->i_ctime = coda_to_timespec64(attr->va_ctime);
 }
 
 
@@ -130,12 +149,12 @@ void coda_iattr_to_vattr(struct iattr *iattr, struct coda_vattr *vattr)
         vattr->va_uid = (vuid_t) -1; 
         vattr->va_gid = (vgid_t) -1;
         vattr->va_size = (off_t) -1;
-	vattr->va_atime.tv_sec = (time_t) -1;
-	vattr->va_atime.tv_nsec =  (time_t) -1;
-        vattr->va_mtime.tv_sec = (time_t) -1;
-        vattr->va_mtime.tv_nsec = (time_t) -1;
-	vattr->va_ctime.tv_sec = (time_t) -1;
-	vattr->va_ctime.tv_nsec = (time_t) -1;
+	vattr->va_atime.tv_sec = (int64_t) -1;
+	vattr->va_atime.tv_nsec = (long) -1;
+	vattr->va_mtime.tv_sec = (int64_t) -1;
+	vattr->va_mtime.tv_nsec = (long) -1;
+	vattr->va_ctime.tv_sec = (int64_t) -1;
+	vattr->va_ctime.tv_nsec = (long) -1;
         vattr->va_type = C_VNON;
 	vattr->va_fileid = -1;
 	vattr->va_gen = -1;
@@ -175,13 +194,13 @@ void coda_iattr_to_vattr(struct iattr *iattr, struct coda_vattr *vattr)
                 vattr->va_size = iattr->ia_size;
 	}
         if ( valid & ATTR_ATIME ) {
-		vattr->va_atime = timespec64_to_timespec(iattr->ia_atime);
+		vattr->va_atime = timespec64_to_coda(iattr->ia_atime);
 	}
         if ( valid & ATTR_MTIME ) {
-		vattr->va_mtime = timespec64_to_timespec(iattr->ia_mtime);
+		vattr->va_mtime = timespec64_to_coda(iattr->ia_mtime);
 	}
         if ( valid & ATTR_CTIME ) {
-		vattr->va_ctime = timespec64_to_timespec(iattr->ia_ctime);
+		vattr->va_ctime = timespec64_to_coda(iattr->ia_ctime);
 	}
 }
 
diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index 126155cadfa9..d5ebd36fb2cc 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -59,22 +59,6 @@ void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
 void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
 unsigned short coda_flags_to_cflags(unsigned short);
 
-/* sysctl.h */
-void coda_sysctl_init(void);
-void coda_sysctl_clean(void);
-
-#define CODA_ALLOC(ptr, cast, size) do { \
-    if (size < PAGE_SIZE) \
-        ptr = kzalloc((unsigned long) size, GFP_KERNEL); \
-    else \
-        ptr = (cast)vzalloc((unsigned long) size); \
-    if (!ptr) \
-	pr_warn("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
-} while (0)
-
-
-#define CODA_FREE(ptr, size) kvfree((ptr))
-
 /* inode to cnode access functions */
 
 static inline struct coda_inode_info *ITOC(struct inode *inode)
diff --git a/fs/coda/coda_psdev.h b/fs/coda/coda_psdev.h
new file mode 100644
index 000000000000..52da08c770b0
--- /dev/null
+++ b/fs/coda/coda_psdev.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __CODA_PSDEV_H
+#define __CODA_PSDEV_H
+
+#include <linux/backing-dev.h>
+#include <linux/magic.h>
+#include <linux/mutex.h>
+
+#define CODA_PSDEV_MAJOR 67
+#define MAX_CODADEVS  5	   /* how many do we allow */
+
+struct kstatfs;
+
+/* messages between coda filesystem in kernel and Venus */
+struct upc_req {
+	struct list_head	uc_chain;
+	caddr_t			uc_data;
+	u_short			uc_flags;
+	u_short			uc_inSize;  /* Size is at most 5000 bytes */
+	u_short			uc_outSize;
+	u_short			uc_opcode;  /* copied from data to save lookup */
+	int			uc_unique;
+	wait_queue_head_t	uc_sleep;   /* process' wait queue */
+};
+
+#define CODA_REQ_ASYNC  0x1
+#define CODA_REQ_READ   0x2
+#define CODA_REQ_WRITE  0x4
+#define CODA_REQ_ABORT  0x8
+
+/* communication pending/processing queues */
+struct venus_comm {
+	u_long		    vc_seq;
+	wait_queue_head_t   vc_waitq; /* Venus wait queue */
+	struct list_head    vc_pending;
+	struct list_head    vc_processing;
+	int                 vc_inuse;
+	struct super_block *vc_sb;
+	struct mutex	    vc_mutex;
+};
+
+static inline struct venus_comm *coda_vcp(struct super_block *sb)
+{
+	return (struct venus_comm *)((sb)->s_fs_info);
+}
+
+/* upcalls */
+int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
+int venus_getattr(struct super_block *sb, struct CodaFid *fid,
+		  struct coda_vattr *attr);
+int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
+int venus_lookup(struct super_block *sb, struct CodaFid *fid,
+		 const char *name, int length, int *type,
+		 struct CodaFid *resfid);
+int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
+		kuid_t uid);
+int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
+	       struct file **f);
+int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
+		const char *name, int length,
+		struct CodaFid *newfid, struct coda_vattr *attrs);
+int venus_create(struct super_block *sb, struct CodaFid *dirfid,
+		 const char *name, int length, int excl, int mode,
+		 struct CodaFid *newfid, struct coda_vattr *attrs);
+int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
+		const char *name, int length);
+int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
+		 const char *name, int length);
+int venus_readlink(struct super_block *sb, struct CodaFid *fid,
+		   char *buffer, int *length);
+int venus_rename(struct super_block *sb, struct CodaFid *new_fid,
+		 struct CodaFid *old_fid, size_t old_length,
+		 size_t new_length, const char *old_name,
+		 const char *new_name);
+int venus_link(struct super_block *sb, struct CodaFid *fid,
+		  struct CodaFid *dirfid, const char *name, int len );
+int venus_symlink(struct super_block *sb, struct CodaFid *fid,
+		  const char *name, int len, const char *symname, int symlen);
+int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
+int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
+		 unsigned int cmd, struct PioctlData *data);
+int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out,
+		  size_t nbytes);
+int venus_fsync(struct super_block *sb, struct CodaFid *fid);
+int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
+int venus_access_intent(struct super_block *sb, struct CodaFid *fid,
+			bool *access_intent_supported,
+			size_t count, loff_t ppos, int type);
+
+/*
+ * Statistics
+ */
+
+extern struct venus_comm coda_comms[];
+#endif
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 00876ddadb43..ca40c2556ba6 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -23,7 +23,7 @@
 #include <linux/uaccess.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
 #include "coda_linux.h"
 #include "coda_cache.h"
 
@@ -47,8 +47,8 @@ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, unsig
 	int type = 0;
 
 	if (length > CODA_MAXNAMLEN) {
-		pr_err("name too long: lookup, %s (%*s)\n",
-		       coda_i2s(dir), (int)length, name);
+		pr_err("name too long: lookup, %s %zu\n",
+		       coda_i2s(dir), length);
 		return ERR_PTR(-ENAMETOOLONG);
 	}
 
@@ -356,8 +356,7 @@ static int coda_venus_readdir(struct file *coda_file, struct dir_context *ctx)
 	ino_t ino;
 	int ret;
 
-	cfi = CODA_FTOC(coda_file);
-	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+	cfi = coda_ftoc(coda_file);
 	host_file = cfi->cfi_container;
 
 	cii = ITOC(file_inode(coda_file));
@@ -426,8 +425,7 @@ static int coda_readdir(struct file *coda_file, struct dir_context *ctx)
 	struct file *host_file;
 	int ret;
 
-	cfi = CODA_FTOC(coda_file);
-	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+	cfi = coda_ftoc(coda_file);
 	host_file = cfi->cfi_container;
 
 	if (host_file->f_op->iterate || host_file->f_op->iterate_shared) {
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 1cbc1f2298ee..128d63df5bfb 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -20,22 +20,43 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
+#include <linux/uio.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
 #include "coda_linux.h"
 #include "coda_int.h"
 
+struct coda_vm_ops {
+	atomic_t refcnt;
+	struct file *coda_file;
+	const struct vm_operations_struct *host_vm_ops;
+	struct vm_operations_struct vm_ops;
+};
+
 static ssize_t
 coda_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
 	struct file *coda_file = iocb->ki_filp;
-	struct coda_file_info *cfi = CODA_FTOC(coda_file);
+	struct inode *coda_inode = file_inode(coda_file);
+	struct coda_file_info *cfi = coda_ftoc(coda_file);
+	loff_t ki_pos = iocb->ki_pos;
+	size_t count = iov_iter_count(to);
+	ssize_t ret;
 
-	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+	ret = venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+				  &cfi->cfi_access_intent,
+				  count, ki_pos, CODA_ACCESS_TYPE_READ);
+	if (ret)
+		goto finish_read;
 
-	return vfs_iter_read(cfi->cfi_container, to, &iocb->ki_pos, 0);
+	ret = vfs_iter_read(cfi->cfi_container, to, &iocb->ki_pos, 0);
+
+finish_read:
+	venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+			    &cfi->cfi_access_intent,
+			    count, ki_pos, CODA_ACCESS_TYPE_READ_FINISH);
+	return ret;
 }
 
 static ssize_t
@@ -43,13 +64,18 @@ coda_file_write_iter(struct kiocb *iocb, struct iov_iter *to)
 {
 	struct file *coda_file = iocb->ki_filp;
 	struct inode *coda_inode = file_inode(coda_file);
-	struct coda_file_info *cfi = CODA_FTOC(coda_file);
-	struct file *host_file;
+	struct coda_file_info *cfi = coda_ftoc(coda_file);
+	struct file *host_file = cfi->cfi_container;
+	loff_t ki_pos = iocb->ki_pos;
+	size_t count = iov_iter_count(to);
 	ssize_t ret;
 
-	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+	ret = venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+				  &cfi->cfi_access_intent,
+				  count, ki_pos, CODA_ACCESS_TYPE_WRITE);
+	if (ret)
+		goto finish_write;
 
-	host_file = cfi->cfi_container;
 	file_start_write(host_file);
 	inode_lock(coda_inode);
 	ret = vfs_iter_write(cfi->cfi_container, to, &iocb->ki_pos, 0);
@@ -58,26 +84,73 @@ coda_file_write_iter(struct kiocb *iocb, struct iov_iter *to)
 	coda_inode->i_mtime = coda_inode->i_ctime = current_time(coda_inode);
 	inode_unlock(coda_inode);
 	file_end_write(host_file);
+
+finish_write:
+	venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+			    &cfi->cfi_access_intent,
+			    count, ki_pos, CODA_ACCESS_TYPE_WRITE_FINISH);
 	return ret;
 }
 
+static void
+coda_vm_open(struct vm_area_struct *vma)
+{
+	struct coda_vm_ops *cvm_ops =
+		container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+	atomic_inc(&cvm_ops->refcnt);
+
+	if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->open)
+		cvm_ops->host_vm_ops->open(vma);
+}
+
+static void
+coda_vm_close(struct vm_area_struct *vma)
+{
+	struct coda_vm_ops *cvm_ops =
+		container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+	if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->close)
+		cvm_ops->host_vm_ops->close(vma);
+
+	if (atomic_dec_and_test(&cvm_ops->refcnt)) {
+		vma->vm_ops = cvm_ops->host_vm_ops;
+		fput(cvm_ops->coda_file);
+		kfree(cvm_ops);
+	}
+}
+
 static int
 coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
 {
-	struct coda_file_info *cfi;
+	struct inode *coda_inode = file_inode(coda_file);
+	struct coda_file_info *cfi = coda_ftoc(coda_file);
+	struct file *host_file = cfi->cfi_container;
+	struct inode *host_inode = file_inode(host_file);
 	struct coda_inode_info *cii;
-	struct file *host_file;
-	struct inode *coda_inode, *host_inode;
-
-	cfi = CODA_FTOC(coda_file);
-	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
-	host_file = cfi->cfi_container;
+	struct coda_vm_ops *cvm_ops;
+	loff_t ppos;
+	size_t count;
+	int ret;
 
 	if (!host_file->f_op->mmap)
 		return -ENODEV;
 
-	coda_inode = file_inode(coda_file);
-	host_inode = file_inode(host_file);
+	if (WARN_ON(coda_file != vma->vm_file))
+		return -EIO;
+
+	count = vma->vm_end - vma->vm_start;
+	ppos = vma->vm_pgoff * PAGE_SIZE;
+
+	ret = venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode),
+				  &cfi->cfi_access_intent,
+				  count, ppos, CODA_ACCESS_TYPE_MMAP);
+	if (ret)
+		return ret;
+
+	cvm_ops = kmalloc(sizeof(struct coda_vm_ops), GFP_KERNEL);
+	if (!cvm_ops)
+		return -ENOMEM;
 
 	cii = ITOC(coda_inode);
 	spin_lock(&cii->c_lock);
@@ -89,6 +162,7 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
 	 * the container file on us! */
 	else if (coda_inode->i_mapping != host_inode->i_mapping) {
 		spin_unlock(&cii->c_lock);
+		kfree(cvm_ops);
 		return -EBUSY;
 	}
 
@@ -97,7 +171,29 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
 	cfi->cfi_mapcount++;
 	spin_unlock(&cii->c_lock);
 
-	return call_mmap(host_file, vma);
+	vma->vm_file = get_file(host_file);
+	ret = call_mmap(vma->vm_file, vma);
+
+	if (ret) {
+		/* if call_mmap fails, our caller will put coda_file so we
+		 * should drop the reference to the host_file that we got.
+		 */
+		fput(host_file);
+		kfree(cvm_ops);
+	} else {
+		/* here we add redirects for the open/close vm_operations */
+		cvm_ops->host_vm_ops = vma->vm_ops;
+		if (vma->vm_ops)
+			cvm_ops->vm_ops = *vma->vm_ops;
+
+		cvm_ops->vm_ops.open = coda_vm_open;
+		cvm_ops->vm_ops.close = coda_vm_close;
+		cvm_ops->coda_file = coda_file;
+		atomic_set(&cvm_ops->refcnt, 1);
+
+		vma->vm_ops = &cvm_ops->vm_ops;
+	}
+	return ret;
 }
 
 int coda_open(struct inode *coda_inode, struct file *coda_file)
@@ -127,6 +223,8 @@ int coda_open(struct inode *coda_inode, struct file *coda_file)
 	cfi->cfi_magic = CODA_MAGIC;
 	cfi->cfi_mapcount = 0;
 	cfi->cfi_container = host_file;
+	/* assume access intents are supported unless we hear otherwise */
+	cfi->cfi_access_intent = true;
 
 	BUG_ON(coda_file->private_data != NULL);
 	coda_file->private_data = cfi;
@@ -142,8 +240,7 @@ int coda_release(struct inode *coda_inode, struct file *coda_file)
 	struct inode *host_inode;
 	int err;
 
-	cfi = CODA_FTOC(coda_file);
-	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+	cfi = coda_ftoc(coda_file);
 
 	err = venus_close(coda_inode->i_sb, coda_i2f(coda_inode),
 			  coda_flags, coda_file->f_cred->fsuid);
@@ -185,8 +282,7 @@ int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync)
 		return err;
 	inode_lock(coda_inode);
 
-	cfi = CODA_FTOC(coda_file);
-	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+	cfi = coda_ftoc(coda_file);
 	host_file = cfi->cfi_container;
 
 	err = vfs_fsync(host_file, datasync);
@@ -207,4 +303,3 @@ const struct file_operations coda_file_operations = {
 	.fsync		= coda_fsync,
 	.splice_read	= generic_file_splice_read,
 };
-
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 23f6ebd08e80..321f56e487cb 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -27,7 +27,7 @@
 #include <linux/vmalloc.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
 #include "coda_linux.h"
 #include "coda_cache.h"
 
@@ -236,6 +236,7 @@ static void coda_put_super(struct super_block *sb)
 	vcp->vc_sb = NULL;
 	sb->s_fs_info = NULL;
 	mutex_unlock(&vcp->vc_mutex);
+	mutex_destroy(&vcp->vc_mutex);
 
 	pr_info("Bye bye.\n");
 }
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index e0c17b7dccce..644d48c12ce8 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -20,8 +20,7 @@
 #include <linux/uaccess.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
 #include "coda_linux.h"
 
 /* pioctl ops */
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 0ceef32e6fae..240669f51eac 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -38,8 +38,7 @@
 #include <linux/uaccess.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
 #include "coda_linux.h"
 
 #include "coda_int.h"
@@ -100,8 +99,12 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
 	ssize_t retval = 0, count = 0;
 	int error;
 
+	/* make sure there is enough to copy out the (opcode, unique) values */
+	if (nbytes < (2 * sizeof(u_int32_t)))
+		return -EINVAL;
+
         /* Peek at the opcode, uniquefier */
-	if (copy_from_user(&hdr, buf, 2 * sizeof(u_long)))
+	if (copy_from_user(&hdr, buf, 2 * sizeof(u_int32_t)))
 	        return -EFAULT;
 
         if (DOWNCALL(hdr.opcode)) {
@@ -119,17 +122,21 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
 				hdr.opcode, hdr.unique);
 		        nbytes = size;
 		}
-		CODA_ALLOC(dcbuf, union outputArgs *, nbytes);
+		dcbuf = kvmalloc(nbytes, GFP_KERNEL);
+		if (!dcbuf) {
+			retval = -ENOMEM;
+			goto out;
+		}
 		if (copy_from_user(dcbuf, buf, nbytes)) {
-			CODA_FREE(dcbuf, nbytes);
+			kvfree(dcbuf);
 			retval = -EFAULT;
 			goto out;
 		}
 
 		/* what downcall errors does Venus handle ? */
-		error = coda_downcall(vcp, hdr.opcode, dcbuf);
+		error = coda_downcall(vcp, hdr.opcode, dcbuf, nbytes);
 
-		CODA_FREE(dcbuf, nbytes);
+		kvfree(dcbuf);
 		if (error) {
 			pr_warn("%s: coda_downcall error: %d\n",
 				__func__, error);
@@ -182,8 +189,11 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
 	if (req->uc_opcode == CODA_OPEN_BY_FD) {
 		struct coda_open_by_fd_out *outp =
 			(struct coda_open_by_fd_out *)req->uc_data;
-		if (!outp->oh.result)
+		if (!outp->oh.result) {
 			outp->fh = fget(outp->fd);
+			if (!outp->fh)
+				return -EBADF;
+		}
 	}
 
         wake_up(&req->uc_sleep);
@@ -252,7 +262,7 @@ static ssize_t coda_psdev_read(struct file * file, char __user * buf,
 		goto out;
 	}
 
-	CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
+	kvfree(req->uc_data);
 	kfree(req);
 out:
 	mutex_unlock(&vcp->vc_mutex);
@@ -314,7 +324,7 @@ static int coda_psdev_release(struct inode * inode, struct file * file)
 
 		/* Async requests need to be freed here */
 		if (req->uc_flags & CODA_REQ_ASYNC) {
-			CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
+			kvfree(req->uc_data);
 			kfree(req);
 			continue;
 		}
@@ -347,13 +357,13 @@ static const struct file_operations coda_psdev_fops = {
 	.llseek		= noop_llseek,
 };
 
-static int init_coda_psdev(void)
+static int __init init_coda_psdev(void)
 {
 	int i, err = 0;
 	if (register_chrdev(CODA_PSDEV_MAJOR, "coda", &coda_psdev_fops)) {
 		pr_err("%s: unable to get major %d\n",
 		       __func__, CODA_PSDEV_MAJOR);
-              return -EIO;
+		return -EIO;
 	}
 	coda_psdev_class = class_create(THIS_MODULE, "coda");
 	if (IS_ERR(coda_psdev_class)) {
@@ -378,7 +388,7 @@ MODULE_AUTHOR("Jan Harkes, Peter J. Braam");
 MODULE_DESCRIPTION("Coda Distributed File System VFS interface");
 MODULE_ALIAS_CHARDEV_MAJOR(CODA_PSDEV_MAJOR);
 MODULE_LICENSE("GPL");
-MODULE_VERSION("6.6");
+MODULE_VERSION("7.0");
 
 static int __init init_coda(void)
 {
diff --git a/fs/coda/symlink.c b/fs/coda/symlink.c
index 202297d156df..8907d0508198 100644
--- a/fs/coda/symlink.c
+++ b/fs/coda/symlink.c
@@ -17,8 +17,7 @@
 #include <linux/pagemap.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
-
+#include "coda_psdev.h"
 #include "coda_linux.h"
 
 static int coda_symlink_filler(struct file *file, struct page *page)
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index 0301d45000a8..fda3b702b1c5 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -12,7 +12,6 @@
 
 #include "coda_int.h"
 
-#ifdef CONFIG_SYSCTL
 static struct ctl_table_header *fs_table_header;
 
 static struct ctl_table coda_table[] = {
@@ -62,13 +61,3 @@ void coda_sysctl_clean(void)
 		fs_table_header = NULL;
 	}
 }
-
-#else
-void coda_sysctl_init(void)
-{
-}
-
-void coda_sysctl_clean(void)
-{
-}
-#endif
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index 1175a1722411..eb3b1898da46 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -33,7 +33,7 @@
 #include <linux/vfs.h>
 
 #include <linux/coda.h>
-#include <linux/coda_psdev.h>
+#include "coda_psdev.h"
 #include "coda_linux.h"
 #include "coda_cache.h"
 
@@ -46,7 +46,7 @@ static void *alloc_upcall(int opcode, int size)
 {
 	union inputArgs *inp;
 
-	CODA_ALLOC(inp, union inputArgs *, size);
+	inp = kvzalloc(size, GFP_KERNEL);
         if (!inp)
 		return ERR_PTR(-ENOMEM);
 
@@ -85,7 +85,7 @@ int venus_rootfid(struct super_block *sb, struct CodaFid *fidp)
 	if (!error)
 		*fidp = outp->coda_root.VFid;
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -104,7 +104,7 @@ int venus_getattr(struct super_block *sb, struct CodaFid *fid,
 	if (!error)
 		*attr = outp->coda_getattr.attr;
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
         return error;
 }
 
@@ -123,7 +123,7 @@ int venus_setattr(struct super_block *sb, struct CodaFid *fid,
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-        CODA_FREE(inp, insize);
+	kvfree(inp);
         return error;
 }
 
@@ -153,7 +153,7 @@ int venus_lookup(struct super_block *sb, struct CodaFid *fid,
 		*type = outp->coda_lookup.vtype;
 	}
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -173,7 +173,7 @@ int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
         return error;
 }
 
@@ -194,7 +194,7 @@ int venus_open(struct super_block *sb, struct CodaFid *fid,
 	if (!error)
 		*fh = outp->coda_open_by_fd.fh;
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }	
 
@@ -224,7 +224,7 @@ int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
 		*newfid = outp->coda_mkdir.VFid;
 	}
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;        
 }
 
@@ -262,7 +262,7 @@ int venus_rename(struct super_block *sb, struct CodaFid *old_fid,
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -295,7 +295,7 @@ int venus_create(struct super_block *sb, struct CodaFid *dirfid,
 		*newfid = outp->coda_create.VFid;
 	}
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;        
 }
 
@@ -318,7 +318,7 @@ int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -340,7 +340,7 @@ int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -370,7 +370,7 @@ int venus_readlink(struct super_block *sb, struct CodaFid *fid,
 		*(buffer + retlen) = '\0';
 	}
 
-        CODA_FREE(inp, insize);
+	kvfree(inp);
         return error;
 }
 
@@ -398,7 +398,7 @@ int venus_link(struct super_block *sb, struct CodaFid *fid,
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
         return error;
 }
 
@@ -433,7 +433,7 @@ int venus_symlink(struct super_block *sb, struct CodaFid *fid,
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
         return error;
 }
 
@@ -449,7 +449,7 @@ int venus_fsync(struct super_block *sb, struct CodaFid *fid)
 	inp->coda_fsync.VFid = *fid;
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -467,7 +467,7 @@ int venus_access(struct super_block *sb, struct CodaFid *fid, int mask)
 
 	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -543,7 +543,7 @@ int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
 	}
 
  exit:
-	CODA_FREE(inp, insize);
+	kvfree(inp);
 	return error;
 }
 
@@ -553,7 +553,7 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs)
         union outputArgs *outp;
         int insize, outsize, error;
         
-	insize = max_t(unsigned int, INSIZE(statfs), OUTSIZE(statfs));
+	insize = SIZE(statfs);
 	UPARG(CODA_STATFS);
 
 	error = coda_upcall(coda_vcp(dentry->d_sb), insize, &outsize, inp);
@@ -565,10 +565,51 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs)
 		sfs->f_ffree  = outp->coda_statfs.stat.f_ffree;
 	}
 
-        CODA_FREE(inp, insize);
+	kvfree(inp);
         return error;
 }
 
+int venus_access_intent(struct super_block *sb, struct CodaFid *fid,
+			bool *access_intent_supported,
+			size_t count, loff_t ppos, int type)
+{
+	union inputArgs *inp;
+	union outputArgs *outp;
+	int insize, outsize, error;
+	bool finalizer =
+		type == CODA_ACCESS_TYPE_READ_FINISH ||
+		type == CODA_ACCESS_TYPE_WRITE_FINISH;
+
+	if (!*access_intent_supported && !finalizer)
+		return 0;
+
+	insize = SIZE(access_intent);
+	UPARG(CODA_ACCESS_INTENT);
+
+	inp->coda_access_intent.VFid = *fid;
+	inp->coda_access_intent.count = count;
+	inp->coda_access_intent.pos = ppos;
+	inp->coda_access_intent.type = type;
+
+	error = coda_upcall(coda_vcp(sb), insize,
+			    finalizer ? NULL : &outsize, inp);
+
+	/*
+	 * we have to free the request buffer for synchronous upcalls
+	 * or when asynchronous upcalls fail, but not when asynchronous
+	 * upcalls succeed
+	 */
+	if (!finalizer || error)
+		kvfree(inp);
+
+	/* Chunked access is not supported or an old Coda client */
+	if (error == -EOPNOTSUPP) {
+		*access_intent_supported = false;
+		error = 0;
+	}
+	return error;
+}
+
 /*
  * coda_upcall and coda_downcall routines.
  */
@@ -598,10 +639,12 @@ static void coda_unblock_signals(sigset_t *old)
  * has seen them,
  * - CODA_CLOSE or CODA_RELEASE upcall  (to avoid reference count problems)
  * - CODA_STORE				(to avoid data loss)
+ * - CODA_ACCESS_INTENT                 (to avoid reference count problems)
  */
 #define CODA_INTERRUPTIBLE(r) (!coda_hard && \
 			       (((r)->uc_opcode != CODA_CLOSE && \
 				 (r)->uc_opcode != CODA_STORE && \
+				 (r)->uc_opcode != CODA_ACCESS_INTENT && \
 				 (r)->uc_opcode != CODA_RELEASE) || \
 				(r)->uc_flags & CODA_REQ_READ))
 
@@ -687,21 +730,25 @@ static int coda_upcall(struct venus_comm *vcp,
 		goto exit;
 	}
 
+	buffer->ih.unique = ++vcp->vc_seq;
+
 	req->uc_data = (void *)buffer;
-	req->uc_flags = 0;
+	req->uc_flags = outSize ? 0 : CODA_REQ_ASYNC;
 	req->uc_inSize = inSize;
-	req->uc_outSize = *outSize ? *outSize : inSize;
-	req->uc_opcode = ((union inputArgs *)buffer)->ih.opcode;
-	req->uc_unique = ++vcp->vc_seq;
+	req->uc_outSize = (outSize && *outSize) ? *outSize : inSize;
+	req->uc_opcode = buffer->ih.opcode;
+	req->uc_unique = buffer->ih.unique;
 	init_waitqueue_head(&req->uc_sleep);
 
-	/* Fill in the common input args. */
-	((union inputArgs *)buffer)->ih.unique = req->uc_unique;
-
 	/* Append msg to pending queue and poke Venus. */
 	list_add_tail(&req->uc_chain, &vcp->vc_pending);
-
 	wake_up_interruptible(&vcp->vc_waitq);
+
+	if (req->uc_flags & CODA_REQ_ASYNC) {
+		mutex_unlock(&vcp->vc_mutex);
+		return 0;
+	}
+
 	/* We can be interrupted while we wait for Venus to process
 	 * our request.  If the interrupt occurs before Venus has read
 	 * the request, we dequeue and return. If it occurs after the
@@ -743,20 +790,20 @@ static int coda_upcall(struct venus_comm *vcp,
 	sig_req = kmalloc(sizeof(struct upc_req), GFP_KERNEL);
 	if (!sig_req) goto exit;
 
-	CODA_ALLOC((sig_req->uc_data), char *, sizeof(struct coda_in_hdr));
-	if (!sig_req->uc_data) {
+	sig_inputArgs = kvzalloc(sizeof(struct coda_in_hdr), GFP_KERNEL);
+	if (!sig_inputArgs) {
 		kfree(sig_req);
 		goto exit;
 	}
 
 	error = -EINTR;
-	sig_inputArgs = (union inputArgs *)sig_req->uc_data;
 	sig_inputArgs->ih.opcode = CODA_SIGNAL;
 	sig_inputArgs->ih.unique = req->uc_unique;
 
 	sig_req->uc_flags = CODA_REQ_ASYNC;
 	sig_req->uc_opcode = sig_inputArgs->ih.opcode;
 	sig_req->uc_unique = sig_inputArgs->ih.unique;
+	sig_req->uc_data = (void *)sig_inputArgs;
 	sig_req->uc_inSize = sizeof(struct coda_in_hdr);
 	sig_req->uc_outSize = sizeof(struct coda_in_hdr);
 
@@ -804,12 +851,44 @@ exit:
  *
  * CODA_REPLACE -- replace one CodaFid with another throughout the name cache */
 
-int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out)
+int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out,
+		  size_t nbytes)
 {
 	struct inode *inode = NULL;
 	struct CodaFid *fid = NULL, *newfid;
 	struct super_block *sb;
 
+	/*
+	 * Make sure we have received enough data from the cache
+	 * manager to populate the necessary fields in the buffer
+	 */
+	switch (opcode) {
+	case CODA_PURGEUSER:
+		if (nbytes < sizeof(struct coda_purgeuser_out))
+			return -EINVAL;
+		break;
+
+	case CODA_ZAPDIR:
+		if (nbytes < sizeof(struct coda_zapdir_out))
+			return -EINVAL;
+		break;
+
+	case CODA_ZAPFILE:
+		if (nbytes < sizeof(struct coda_zapfile_out))
+			return -EINVAL;
+		break;
+
+	case CODA_PURGEFID:
+		if (nbytes < sizeof(struct coda_purgefid_out))
+			return -EINVAL;
+		break;
+
+	case CODA_REPLACE:
+		if (nbytes < sizeof(struct coda_replace_out))
+			return -EINVAL;
+		break;
+	}
+
 	/* Handle invalidation requests. */
 	mutex_lock(&vcp->vc_mutex);
 	sb = vcp->vc_sb;
@@ -879,4 +958,3 @@ unlock_out:
 	iput(inode);
 	return 0;
 }
-
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 4c74c768ae43..0f9c073d78d5 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -2313,19 +2313,17 @@ SYSCALL_DEFINE6(epoll_pwait, int, epfd, struct epoll_event __user *, events,
 		size_t, sigsetsize)
 {
 	int error;
-	sigset_t ksigmask, sigsaved;
 
 	/*
 	 * If the caller wants a certain signal mask to be set during the wait,
 	 * we apply it here.
 	 */
-	error = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	error = set_user_sigmask(sigmask, sigsetsize);
 	if (error)
 		return error;
 
 	error = do_epoll_wait(epfd, events, maxevents, timeout);
-
-	restore_user_sigmask(sigmask, &sigsaved, error == -EINTR);
+	restore_saved_sigmask_unless(error == -EINTR);
 
 	return error;
 }
@@ -2338,19 +2336,17 @@ COMPAT_SYSCALL_DEFINE6(epoll_pwait, int, epfd,
 			compat_size_t, sigsetsize)
 {
 	long err;
-	sigset_t ksigmask, sigsaved;
 
 	/*
 	 * If the caller wants a certain signal mask to be set during the wait,
 	 * we apply it here.
 	 */
-	err = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	err = set_compat_user_sigmask(sigmask, sigsetsize);
 	if (err)
 		return err;
 
 	err = do_epoll_wait(epfd, events, maxevents, timeout);
-
-	restore_user_sigmask(sigmask, &sigsaved, err == -EINTR);
+	restore_saved_sigmask_unless(err == -EINTR);
 
 	return err;
 }
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index d5403b4004c9..bb0b27d88e50 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -407,7 +407,7 @@ static int copy_name(char *buffer, const char *xattr_name, int name_len)
 	int offset = 0;
 
 	if (!is_known_namespace(xattr_name)) {
-		strncpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
+		memcpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
 		offset += XATTR_MAC_OSX_PREFIX_LEN;
 		len += XATTR_MAC_OSX_PREFIX_LEN;
 	}
diff --git a/fs/io_uring.c b/fs/io_uring.c
index d682049c07b2..e2a66e12fbc6 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2400,7 +2400,6 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events,
 			  const sigset_t __user *sig, size_t sigsz)
 {
 	struct io_cq_ring *ring = ctx->cq_ring;
-	sigset_t ksigmask, sigsaved;
 	int ret;
 
 	if (io_cqring_events(ring) >= min_events)
@@ -2410,21 +2409,17 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events,
 #ifdef CONFIG_COMPAT
 		if (in_compat_syscall())
 			ret = set_compat_user_sigmask((const compat_sigset_t __user *)sig,
-						      &ksigmask, &sigsaved, sigsz);
+						      sigsz);
 		else
 #endif
-			ret = set_user_sigmask(sig, &ksigmask,
-					       &sigsaved, sigsz);
+			ret = set_user_sigmask(sig, sigsz);
 
 		if (ret)
 			return ret;
 	}
 
 	ret = wait_event_interruptible(ctx->wait, io_cqring_events(ring) >= min_events);
-
-	if (sig)
-		restore_user_sigmask(sig, &sigsaved, ret == -ERESTARTSYS);
-
+	restore_saved_sigmask_unless(ret == -ERESTARTSYS);
 	if (ret == -ERESTARTSYS)
 		ret = -EINTR;
 
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 47d2651fd9dc..cb5629bd5fff 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -58,7 +58,8 @@ config PROC_VMCORE_DEVICE_DUMP
 	  snapshot.
 
 	  If you say Y here, the collected device dumps will be added
-	  as ELF notes to /proc/vmcore.
+	  as ELF notes to /proc/vmcore. You can still disable device
+	  dump using the kernel command line option 'novmcoredd'.
 
 config PROC_SYSCTL
 	bool "Sysctl support (/proc/sys)" if EXPERT
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 5f8d215b3fd0..dbe43a50caf2 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -200,7 +200,8 @@ static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence)
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	loff_t rv = -EINVAL;
 	if (use_pde(pde)) {
-		loff_t (*llseek)(struct file *, loff_t, int);
+		typeof_member(struct file_operations, llseek) llseek;
+
 		llseek = pde->proc_fops->llseek;
 		if (!llseek)
 			llseek = default_llseek;
@@ -212,10 +213,11 @@ static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence)
 
 static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 {
-	ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	ssize_t rv = -EIO;
 	if (use_pde(pde)) {
+		typeof_member(struct file_operations, read) read;
+
 		read = pde->proc_fops->read;
 		if (read)
 			rv = read(file, buf, count, ppos);
@@ -226,10 +228,11 @@ static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count,
 
 static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 {
-	ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *);
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	ssize_t rv = -EIO;
 	if (use_pde(pde)) {
+		typeof_member(struct file_operations, write) write;
+
 		write = pde->proc_fops->write;
 		if (write)
 			rv = write(file, buf, count, ppos);
@@ -242,8 +245,9 @@ static __poll_t proc_reg_poll(struct file *file, struct poll_table_struct *pts)
 {
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	__poll_t rv = DEFAULT_POLLMASK;
-	__poll_t (*poll)(struct file *, struct poll_table_struct *);
 	if (use_pde(pde)) {
+		typeof_member(struct file_operations, poll) poll;
+
 		poll = pde->proc_fops->poll;
 		if (poll)
 			rv = poll(file, pts);
@@ -256,8 +260,9 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne
 {
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	long rv = -ENOTTY;
-	long (*ioctl)(struct file *, unsigned int, unsigned long);
 	if (use_pde(pde)) {
+		typeof_member(struct file_operations, unlocked_ioctl) ioctl;
+
 		ioctl = pde->proc_fops->unlocked_ioctl;
 		if (ioctl)
 			rv = ioctl(file, cmd, arg);
@@ -271,8 +276,9 @@ static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned
 {
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	long rv = -ENOTTY;
-	long (*compat_ioctl)(struct file *, unsigned int, unsigned long);
 	if (use_pde(pde)) {
+		typeof_member(struct file_operations, compat_ioctl) compat_ioctl;
+
 		compat_ioctl = pde->proc_fops->compat_ioctl;
 		if (compat_ioctl)
 			rv = compat_ioctl(file, cmd, arg);
@@ -286,8 +292,9 @@ static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	int rv = -EIO;
-	int (*mmap)(struct file *, struct vm_area_struct *);
 	if (use_pde(pde)) {
+		typeof_member(struct file_operations, mmap) mmap;
+
 		mmap = pde->proc_fops->mmap;
 		if (mmap)
 			rv = mmap(file, vma);
@@ -305,7 +312,7 @@ proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,
 	unsigned long rv = -EIO;
 
 	if (use_pde(pde)) {
-		typeof(proc_reg_get_unmapped_area) *get_area;
+		typeof_member(struct file_operations, get_unmapped_area) get_area;
 
 		get_area = pde->proc_fops->get_unmapped_area;
 #ifdef CONFIG_MMU
@@ -326,8 +333,8 @@ static int proc_reg_open(struct inode *inode, struct file *file)
 {
 	struct proc_dir_entry *pde = PDE(inode);
 	int rv = 0;
-	int (*open)(struct inode *, struct file *);
-	int (*release)(struct inode *, struct file *);
+	typeof_member(struct file_operations, open) open;
+	typeof_member(struct file_operations, release) release;
 	struct pde_opener *pdeo;
 
 	/*
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index c74570736b24..36ad1b0d6259 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -499,6 +499,10 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
 
 	if (root->set_ownership)
 		root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);
+	else {
+		inode->i_uid = GLOBAL_ROOT_UID;
+		inode->i_gid = GLOBAL_ROOT_GID;
+	}
 
 	return inode;
 }
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 57957c91c6df..7bcc92add72c 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -21,6 +21,7 @@
 #include <linux/init.h>
 #include <linux/crash_dump.h>
 #include <linux/list.h>
+#include <linux/moduleparam.h>
 #include <linux/mutex.h>
 #include <linux/vmalloc.h>
 #include <linux/pagemap.h>
@@ -54,6 +55,9 @@ static struct proc_dir_entry *proc_vmcore;
 /* Device Dump list and mutex to synchronize access to list */
 static LIST_HEAD(vmcoredd_list);
 static DEFINE_MUTEX(vmcoredd_mutex);
+
+static bool vmcoredd_disabled;
+core_param(novmcoredd, vmcoredd_disabled, bool, 0);
 #endif /* CONFIG_PROC_VMCORE_DEVICE_DUMP */
 
 /* Device Dump Size */
@@ -1452,6 +1456,11 @@ int vmcore_add_device_dump(struct vmcoredd_data *data)
 	size_t data_size;
 	int ret;
 
+	if (vmcoredd_disabled) {
+		pr_err_once("Device dump is disabled\n");
+		return -EINVAL;
+	}
+
 	if (!data || !strlen(data->dump_name) ||
 	    !data->vmcoredd_callback || !data->size)
 		return -EINVAL;
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 36346dc4cec0..4517a1394c6f 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -94,7 +94,7 @@ static int journal_join(struct reiserfs_transaction_handle *th,
 			struct super_block *sb);
 static void release_journal_dev(struct super_block *super,
 			       struct reiserfs_journal *journal);
-static int dirty_one_transaction(struct super_block *s,
+static void dirty_one_transaction(struct super_block *s,
 				 struct reiserfs_journal_list *jl);
 static void flush_async_commits(struct work_struct *work);
 static void queue_log_writer(struct super_block *s);
@@ -1682,12 +1682,11 @@ next:
 }
 
 /* used by flush_commit_list */
-static int dirty_one_transaction(struct super_block *s,
+static void dirty_one_transaction(struct super_block *s,
 				 struct reiserfs_journal_list *jl)
 {
 	struct reiserfs_journal_cnode *cn;
 	struct reiserfs_journal_list *pjl;
-	int ret = 0;
 
 	jl->j_state |= LIST_DIRTY;
 	cn = jl->j_realblock;
@@ -1716,7 +1715,6 @@ static int dirty_one_transaction(struct super_block *s,
 		}
 		cn = cn->next;
 	}
-	return ret;
 }
 
 static int kupdate_transactions(struct super_block *s,
diff --git a/fs/select.c b/fs/select.c
index a4d8f6e8b63c..53a0c149f528 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -294,12 +294,14 @@ enum poll_time_type {
 	PT_OLD_TIMESPEC = 3,
 };
 
-static int poll_select_copy_remaining(struct timespec64 *end_time,
-				      void __user *p,
-				      enum poll_time_type pt_type, int ret)
+static int poll_select_finish(struct timespec64 *end_time,
+			      void __user *p,
+			      enum poll_time_type pt_type, int ret)
 {
 	struct timespec64 rts;
 
+	restore_saved_sigmask_unless(ret == -ERESTARTNOHAND);
+
 	if (!p)
 		return ret;
 
@@ -714,9 +716,7 @@ static int kern_select(int n, fd_set __user *inp, fd_set __user *outp,
 	}
 
 	ret = core_sys_select(n, inp, outp, exp, to);
-	ret = poll_select_copy_remaining(&end_time, tvp, PT_TIMEVAL, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tvp, PT_TIMEVAL, ret);
 }
 
 SYSCALL_DEFINE5(select, int, n, fd_set __user *, inp, fd_set __user *, outp,
@@ -730,7 +730,6 @@ static long do_pselect(int n, fd_set __user *inp, fd_set __user *outp,
 		       const sigset_t __user *sigmask, size_t sigsetsize,
 		       enum poll_time_type type)
 {
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 ts, end_time, *to = NULL;
 	int ret;
 
@@ -753,15 +752,12 @@ static long do_pselect(int n, fd_set __user *inp, fd_set __user *outp,
 			return -EINVAL;
 	}
 
-	ret = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	ret = set_user_sigmask(sigmask, sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = core_sys_select(n, inp, outp, exp, to);
-	restore_user_sigmask(sigmask, &sigsaved, ret == -ERESTARTNOHAND);
-	ret = poll_select_copy_remaining(&end_time, tsp, type, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tsp, type, ret);
 }
 
 /*
@@ -926,7 +922,7 @@ static int do_poll(struct poll_list *list, struct poll_wqueues *wait,
 		if (!count) {
 			count = wait->error;
 			if (signal_pending(current))
-				count = -EINTR;
+				count = -ERESTARTNOHAND;
 		}
 		if (count || timed_out)
 			break;
@@ -965,7 +961,7 @@ static int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
 		struct timespec64 *end_time)
 {
 	struct poll_wqueues table;
- 	int err = -EFAULT, fdcount, len, size;
+	int err = -EFAULT, fdcount, len;
 	/* Allocate small arguments on the stack to save memory and be
 	   faster - use long to make sure the buffer is aligned properly
 	   on 64 bit archs to avoid unaligned access */
@@ -993,8 +989,8 @@ static int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
 			break;
 
 		len = min(todo, POLLFD_PER_PAGE);
-		size = sizeof(struct poll_list) + sizeof(struct pollfd) * len;
-		walk = walk->next = kmalloc(size, GFP_KERNEL);
+		walk = walk->next = kmalloc(struct_size(walk, entries, len),
+					    GFP_KERNEL);
 		if (!walk) {
 			err = -ENOMEM;
 			goto out_fds;
@@ -1041,7 +1037,7 @@ static long do_restart_poll(struct restart_block *restart_block)
 
 	ret = do_sys_poll(ufds, nfds, to);
 
-	if (ret == -EINTR) {
+	if (ret == -ERESTARTNOHAND) {
 		restart_block->fn = do_restart_poll;
 		ret = -ERESTART_RESTARTBLOCK;
 	}
@@ -1062,7 +1058,7 @@ SYSCALL_DEFINE3(poll, struct pollfd __user *, ufds, unsigned int, nfds,
 
 	ret = do_sys_poll(ufds, nfds, to);
 
-	if (ret == -EINTR) {
+	if (ret == -ERESTARTNOHAND) {
 		struct restart_block *restart_block;
 
 		restart_block = &current->restart_block;
@@ -1086,7 +1082,6 @@ SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds, unsigned int, nfds,
 		struct __kernel_timespec __user *, tsp, const sigset_t __user *, sigmask,
 		size_t, sigsetsize)
 {
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 ts, end_time, *to = NULL;
 	int ret;
 
@@ -1099,20 +1094,12 @@ SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds, unsigned int, nfds,
 			return -EINVAL;
 	}
 
-	ret = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	ret = set_user_sigmask(sigmask, sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_sys_poll(ufds, nfds, to);
-
-	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
-	/* We can restart this syscall, usually */
-	if (ret == -EINTR)
-		ret = -ERESTARTNOHAND;
-
-	ret = poll_select_copy_remaining(&end_time, tsp, PT_TIMESPEC, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tsp, PT_TIMESPEC, ret);
 }
 
 #if defined(CONFIG_COMPAT_32BIT_TIME) && !defined(CONFIG_64BIT)
@@ -1121,7 +1108,6 @@ SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds, unsigned int, nfds,
 		struct old_timespec32 __user *, tsp, const sigset_t __user *, sigmask,
 		size_t, sigsetsize)
 {
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 ts, end_time, *to = NULL;
 	int ret;
 
@@ -1134,20 +1120,12 @@ SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds, unsigned int, nfds,
 			return -EINVAL;
 	}
 
-	ret = set_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	ret = set_user_sigmask(sigmask, sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_sys_poll(ufds, nfds, to);
-
-	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
-	/* We can restart this syscall, usually */
-	if (ret == -EINTR)
-		ret = -ERESTARTNOHAND;
-
-	ret = poll_select_copy_remaining(&end_time, tsp, PT_OLD_TIMESPEC, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tsp, PT_OLD_TIMESPEC, ret);
 }
 #endif
 
@@ -1284,9 +1262,7 @@ static int do_compat_select(int n, compat_ulong_t __user *inp,
 	}
 
 	ret = compat_core_sys_select(n, inp, outp, exp, to);
-	ret = poll_select_copy_remaining(&end_time, tvp, PT_OLD_TIMEVAL, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tvp, PT_OLD_TIMEVAL, ret);
 }
 
 COMPAT_SYSCALL_DEFINE5(select, int, n, compat_ulong_t __user *, inp,
@@ -1319,7 +1295,6 @@ static long do_compat_pselect(int n, compat_ulong_t __user *inp,
 	void __user *tsp, compat_sigset_t __user *sigmask,
 	compat_size_t sigsetsize, enum poll_time_type type)
 {
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 ts, end_time, *to = NULL;
 	int ret;
 
@@ -1342,15 +1317,12 @@ static long do_compat_pselect(int n, compat_ulong_t __user *inp,
 			return -EINVAL;
 	}
 
-	ret = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	ret = set_compat_user_sigmask(sigmask, sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = compat_core_sys_select(n, inp, outp, exp, to);
-	restore_user_sigmask(sigmask, &sigsaved, ret == -ERESTARTNOHAND);
-	ret = poll_select_copy_remaining(&end_time, tsp, type, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tsp, type, ret);
 }
 
 COMPAT_SYSCALL_DEFINE6(pselect6_time64, int, n, compat_ulong_t __user *, inp,
@@ -1402,7 +1374,6 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds,
 	unsigned int,  nfds, struct old_timespec32 __user *, tsp,
 	const compat_sigset_t __user *, sigmask, compat_size_t, sigsetsize)
 {
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 ts, end_time, *to = NULL;
 	int ret;
 
@@ -1415,20 +1386,12 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds,
 			return -EINVAL;
 	}
 
-	ret = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	ret = set_compat_user_sigmask(sigmask, sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_sys_poll(ufds, nfds, to);
-
-	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
-	/* We can restart this syscall, usually */
-	if (ret == -EINTR)
-		ret = -ERESTARTNOHAND;
-
-	ret = poll_select_copy_remaining(&end_time, tsp, PT_OLD_TIMESPEC, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tsp, PT_OLD_TIMESPEC, ret);
 }
 #endif
 
@@ -1437,7 +1400,6 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time64, struct pollfd __user *, ufds,
 	unsigned int,  nfds, struct __kernel_timespec __user *, tsp,
 	const compat_sigset_t __user *, sigmask, compat_size_t, sigsetsize)
 {
-	sigset_t ksigmask, sigsaved;
 	struct timespec64 ts, end_time, *to = NULL;
 	int ret;
 
@@ -1450,20 +1412,12 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time64, struct pollfd __user *, ufds,
 			return -EINVAL;
 	}
 
-	ret = set_compat_user_sigmask(sigmask, &ksigmask, &sigsaved, sigsetsize);
+	ret = set_compat_user_sigmask(sigmask, sigsetsize);
 	if (ret)
 		return ret;
 
 	ret = do_sys_poll(ufds, nfds, to);
-
-	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
-	/* We can restart this syscall, usually */
-	if (ret == -EINTR)
-		ret = -ERESTARTNOHAND;
-
-	ret = poll_select_copy_remaining(&end_time, tsp, PT_TIMESPEC, ret);
-
-	return ret;
+	return poll_select_finish(&end_time, tsp, PT_TIMESPEC, ret);
 }
 
 #endif
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 3d247c0d92aa..4ed0dca52ec8 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1407,11 +1407,9 @@ static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	struct super_block *sb = dentry->d_sb;
 	struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi;
 	unsigned  flags = UFS_SB(sb)->s_flags;
-	struct ufs_super_block_third *usb3;
 	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
 
 	mutex_lock(&UFS_SB(sb)->s_lock);
-	usb3 = ubh_get_usb_third(uspi);
 	
 	if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
 		buf->f_type = UFS2_MAGIC;