Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull quota, ext2, isofs and udf fixes from Jan Kara:

 - two small quota error handling fixes

 - two isofs fixes for architectures with signed char

 - several udf block number overflow and signedness fixes

 - ext2 rework of mount option handling to avoid GFP_KERNEL allocation
   with spinlock held

 - ... it also contains a patch to implement auditing of responses to
   fanotify permission events. That should have been in the fanotify
   pull request but I mistakenly merged that patch into a wrong branch
   and noticed only now at which point I don't think it's worth rebasing
   and redoing.

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: be aware of error from dquot_initialize
  quota: fix potential infinite loop
  isofs: use unsigned char types consistently
  isofs: fix timestamps beyond 2027
  udf: Fix some sign-conversion warnings
  udf: Fix signed/unsigned format specifiers
  udf: Fix 64-bit sign extension issues affecting blocks > 0x7FFFFFFF
  udf: Remove some outdate references from documentation
  udf: Avoid overflow when session starts at large offset
  ext2: Fix possible sleep in atomic during mount option parsing
  ext2: Parse mount options into a dedicated structure
  audit: Record fanotify access control decisions

27 files changed, 366 insertions, 314 deletions

diff --git a/Documentation/filesystems/udf.txt b/Documentation/filesystems/udf.txt
index 902b95d0ee51..d3d0e3218f86 100644
--- a/Documentation/filesystems/udf.txt
+++ b/Documentation/filesystems/udf.txt
@@ -1,11 +1,9 @@
 *
 * Documentation/filesystems/udf.txt
 *
-UDF Filesystem version 0.9.8.1
 
 If you encounter problems with reading UDF discs using this driver,
-please report them to linux_udf@hpesjro.fc.hp.com, which is the
-developer's list.
+please report them according to MAINTAINERS file.
 
 Write support requires a block driver which supports writing.  Currently
 dvd+rw drives and media support true random sector writes, and so a udf
@@ -73,10 +71,8 @@ The following expect a offset from the partition root.
 
 
 For the latest version and toolset see:
-	http://linux-udf.sourceforge.net/
+	https://github.com/pali/udftools
 
 Documentation on UDF and ECMA 167 is available FREE from:
 	http://www.osta.org/
 	http://www.ecma-international.org/
-
-Ben Fennema <bfennema@falcon.csc.calpoly.edu>
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 1458706bd2ec..e2b6be03e69b 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -479,10 +479,10 @@ static const match_table_t tokens = {
 	{Opt_err, NULL}
 };
 
-static int parse_options(char *options, struct super_block *sb)
+static int parse_options(char *options, struct super_block *sb,
+			 struct ext2_mount_options *opts)
 {
 	char *p;
-	struct ext2_sb_info *sbi = EXT2_SB(sb);
 	substring_t args[MAX_OPT_ARGS];
 	int option;
 	kuid_t uid;
@@ -499,16 +499,16 @@ static int parse_options(char *options, struct super_block *sb)
 		token = match_token(p, tokens, args);
 		switch (token) {
 		case Opt_bsd_df:
-			clear_opt (sbi->s_mount_opt, MINIX_DF);
+			clear_opt (opts->s_mount_opt, MINIX_DF);
 			break;
 		case Opt_minix_df:
-			set_opt (sbi->s_mount_opt, MINIX_DF);
+			set_opt (opts->s_mount_opt, MINIX_DF);
 			break;
 		case Opt_grpid:
-			set_opt (sbi->s_mount_opt, GRPID);
+			set_opt (opts->s_mount_opt, GRPID);
 			break;
 		case Opt_nogrpid:
-			clear_opt (sbi->s_mount_opt, GRPID);
+			clear_opt (opts->s_mount_opt, GRPID);
 			break;
 		case Opt_resuid:
 			if (match_int(&args[0], &option))
@@ -519,7 +519,7 @@ static int parse_options(char *options, struct super_block *sb)
 				return 0;
 
 			}
-			sbi->s_resuid = uid;
+			opts->s_resuid = uid;
 			break;
 		case Opt_resgid:
 			if (match_int(&args[0], &option))
@@ -529,51 +529,51 @@ static int parse_options(char *options, struct super_block *sb)
 				ext2_msg(sb, KERN_ERR, "Invalid gid value %d", option);
 				return 0;
 			}
-			sbi->s_resgid = gid;
+			opts->s_resgid = gid;
 			break;
 		case Opt_sb:
 			/* handled by get_sb_block() instead of here */
 			/* *sb_block = match_int(&args[0]); */
 			break;
 		case Opt_err_panic:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			set_opt (sbi->s_mount_opt, ERRORS_PANIC);
+			clear_opt (opts->s_mount_opt, ERRORS_CONT);
+			clear_opt (opts->s_mount_opt, ERRORS_RO);
+			set_opt (opts->s_mount_opt, ERRORS_PANIC);
 			break;
 		case Opt_err_ro:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_RO);
+			clear_opt (opts->s_mount_opt, ERRORS_CONT);
+			clear_opt (opts->s_mount_opt, ERRORS_PANIC);
+			set_opt (opts->s_mount_opt, ERRORS_RO);
 			break;
 		case Opt_err_cont:
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_CONT);
+			clear_opt (opts->s_mount_opt, ERRORS_RO);
+			clear_opt (opts->s_mount_opt, ERRORS_PANIC);
+			set_opt (opts->s_mount_opt, ERRORS_CONT);
 			break;
 		case Opt_nouid32:
-			set_opt (sbi->s_mount_opt, NO_UID32);
+			set_opt (opts->s_mount_opt, NO_UID32);
 			break;
 		case Opt_nocheck:
-			clear_opt (sbi->s_mount_opt, CHECK);
+			clear_opt (opts->s_mount_opt, CHECK);
 			break;
 		case Opt_debug:
-			set_opt (sbi->s_mount_opt, DEBUG);
+			set_opt (opts->s_mount_opt, DEBUG);
 			break;
 		case Opt_oldalloc:
-			set_opt (sbi->s_mount_opt, OLDALLOC);
+			set_opt (opts->s_mount_opt, OLDALLOC);
 			break;
 		case Opt_orlov:
-			clear_opt (sbi->s_mount_opt, OLDALLOC);
+			clear_opt (opts->s_mount_opt, OLDALLOC);
 			break;
 		case Opt_nobh:
-			set_opt (sbi->s_mount_opt, NOBH);
+			set_opt (opts->s_mount_opt, NOBH);
 			break;
 #ifdef CONFIG_EXT2_FS_XATTR
 		case Opt_user_xattr:
-			set_opt (sbi->s_mount_opt, XATTR_USER);
+			set_opt (opts->s_mount_opt, XATTR_USER);
 			break;
 		case Opt_nouser_xattr:
-			clear_opt (sbi->s_mount_opt, XATTR_USER);
+			clear_opt (opts->s_mount_opt, XATTR_USER);
 			break;
 #else
 		case Opt_user_xattr:
@@ -584,10 +584,10 @@ static int parse_options(char *options, struct super_block *sb)
 #endif
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
 		case Opt_acl:
-			set_opt(sbi->s_mount_opt, POSIX_ACL);
+			set_opt(opts->s_mount_opt, POSIX_ACL);
 			break;
 		case Opt_noacl:
-			clear_opt(sbi->s_mount_opt, POSIX_ACL);
+			clear_opt(opts->s_mount_opt, POSIX_ACL);
 			break;
 #else
 		case Opt_acl:
@@ -598,13 +598,13 @@ static int parse_options(char *options, struct super_block *sb)
 #endif
 		case Opt_xip:
 			ext2_msg(sb, KERN_INFO, "use dax instead of xip");
-			set_opt(sbi->s_mount_opt, XIP);
+			set_opt(opts->s_mount_opt, XIP);
 			/* Fall through */
 		case Opt_dax:
 #ifdef CONFIG_FS_DAX
 			ext2_msg(sb, KERN_WARNING,
 		"DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
-			set_opt(sbi->s_mount_opt, DAX);
+			set_opt(opts->s_mount_opt, DAX);
 #else
 			ext2_msg(sb, KERN_INFO, "dax option not supported");
 #endif
@@ -613,11 +613,11 @@ static int parse_options(char *options, struct super_block *sb)
 #if defined(CONFIG_QUOTA)
 		case Opt_quota:
 		case Opt_usrquota:
-			set_opt(sbi->s_mount_opt, USRQUOTA);
+			set_opt(opts->s_mount_opt, USRQUOTA);
 			break;
 
 		case Opt_grpquota:
-			set_opt(sbi->s_mount_opt, GRPQUOTA);
+			set_opt(opts->s_mount_opt, GRPQUOTA);
 			break;
 #else
 		case Opt_quota:
@@ -629,11 +629,11 @@ static int parse_options(char *options, struct super_block *sb)
 #endif
 
 		case Opt_reservation:
-			set_opt(sbi->s_mount_opt, RESERVATION);
+			set_opt(opts->s_mount_opt, RESERVATION);
 			ext2_msg(sb, KERN_INFO, "reservations ON");
 			break;
 		case Opt_noreservation:
-			clear_opt(sbi->s_mount_opt, RESERVATION);
+			clear_opt(opts->s_mount_opt, RESERVATION);
 			ext2_msg(sb, KERN_INFO, "reservations OFF");
 			break;
 		case Opt_ignore:
@@ -830,6 +830,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	int i, j;
 	__le32 features;
 	int err;
+	struct ext2_mount_options opts;
 
 	err = -ENOMEM;
 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
@@ -890,35 +891,39 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	/* Set defaults before we parse the mount options */
 	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
 	if (def_mount_opts & EXT2_DEFM_DEBUG)
-		set_opt(sbi->s_mount_opt, DEBUG);
+		set_opt(opts.s_mount_opt, DEBUG);
 	if (def_mount_opts & EXT2_DEFM_BSDGROUPS)
-		set_opt(sbi->s_mount_opt, GRPID);
+		set_opt(opts.s_mount_opt, GRPID);
 	if (def_mount_opts & EXT2_DEFM_UID16)
-		set_opt(sbi->s_mount_opt, NO_UID32);
+		set_opt(opts.s_mount_opt, NO_UID32);
 #ifdef CONFIG_EXT2_FS_XATTR
 	if (def_mount_opts & EXT2_DEFM_XATTR_USER)
-		set_opt(sbi->s_mount_opt, XATTR_USER);
+		set_opt(opts.s_mount_opt, XATTR_USER);
 #endif
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
 	if (def_mount_opts & EXT2_DEFM_ACL)
-		set_opt(sbi->s_mount_opt, POSIX_ACL);
+		set_opt(opts.s_mount_opt, POSIX_ACL);
 #endif
 	
 	if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_PANIC)
-		set_opt(sbi->s_mount_opt, ERRORS_PANIC);
+		set_opt(opts.s_mount_opt, ERRORS_PANIC);
 	else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_CONTINUE)
-		set_opt(sbi->s_mount_opt, ERRORS_CONT);
+		set_opt(opts.s_mount_opt, ERRORS_CONT);
 	else
-		set_opt(sbi->s_mount_opt, ERRORS_RO);
+		set_opt(opts.s_mount_opt, ERRORS_RO);
 
-	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));
-	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));
+	opts.s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));
+	opts.s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));
 	
-	set_opt(sbi->s_mount_opt, RESERVATION);
+	set_opt(opts.s_mount_opt, RESERVATION);
 
-	if (!parse_options((char *) data, sb))
+	if (!parse_options((char *) data, sb, &opts))
 		goto failed_mount;
 
+	sbi->s_mount_opt = opts.s_mount_opt;
+	sbi->s_resuid = opts.s_resuid;
+	sbi->s_resgid = opts.s_resgid;
+
 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
 		((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
 		 MS_POSIXACL : 0);
@@ -1312,46 +1317,36 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 {
 	struct ext2_sb_info * sbi = EXT2_SB(sb);
 	struct ext2_super_block * es;
-	struct ext2_mount_options old_opts;
-	unsigned long old_sb_flags;
+	struct ext2_mount_options new_opts;
 	int err;
 
 	sync_filesystem(sb);
-	spin_lock(&sbi->s_lock);
 
-	/* Store the old options */
-	old_sb_flags = sb->s_flags;
-	old_opts.s_mount_opt = sbi->s_mount_opt;
-	old_opts.s_resuid = sbi->s_resuid;
-	old_opts.s_resgid = sbi->s_resgid;
+	spin_lock(&sbi->s_lock);
+	new_opts.s_mount_opt = sbi->s_mount_opt;
+	new_opts.s_resuid = sbi->s_resuid;
+	new_opts.s_resgid = sbi->s_resgid;
+	spin_unlock(&sbi->s_lock);
 
 	/*
 	 * Allow the "check" option to be passed as a remount option.
 	 */
-	if (!parse_options(data, sb)) {
-		err = -EINVAL;
-		goto restore_opts;
-	}
-
-	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
-		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+	if (!parse_options(data, sb, &new_opts))
+		return -EINVAL;
 
+	spin_lock(&sbi->s_lock);
 	es = sbi->s_es;
-	if ((sbi->s_mount_opt ^ old_opts.s_mount_opt) & EXT2_MOUNT_DAX) {
+	if ((sbi->s_mount_opt ^ new_opts.s_mount_opt) & EXT2_MOUNT_DAX) {
 		ext2_msg(sb, KERN_WARNING, "warning: refusing change of "
 			 "dax flag with busy inodes while remounting");
-		sbi->s_mount_opt ^= EXT2_MOUNT_DAX;
-	}
-	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) {
-		spin_unlock(&sbi->s_lock);
-		return 0;
+		new_opts.s_mount_opt ^= EXT2_MOUNT_DAX;
 	}
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
+		goto out_set;
 	if (*flags & MS_RDONLY) {
 		if (le16_to_cpu(es->s_state) & EXT2_VALID_FS ||
-		    !(sbi->s_mount_state & EXT2_VALID_FS)) {
-			spin_unlock(&sbi->s_lock);
-			return 0;
-		}
+		    !(sbi->s_mount_state & EXT2_VALID_FS))
+			goto out_set;
 
 		/*
 		 * OK, we are remounting a valid rw partition rdonly, so set
@@ -1362,22 +1357,20 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 		spin_unlock(&sbi->s_lock);
 
 		err = dquot_suspend(sb, -1);
-		if (err < 0) {
-			spin_lock(&sbi->s_lock);
-			goto restore_opts;
-		}
+		if (err < 0)
+			return err;
 
 		ext2_sync_super(sb, es, 1);
 	} else {
 		__le32 ret = EXT2_HAS_RO_COMPAT_FEATURE(sb,
 					       ~EXT2_FEATURE_RO_COMPAT_SUPP);
 		if (ret) {
+			spin_unlock(&sbi->s_lock);
 			ext2_msg(sb, KERN_WARNING,
 				"warning: couldn't remount RDWR because of "
 				"unsupported optional features (%x).",
 				le32_to_cpu(ret));
-			err = -EROFS;
-			goto restore_opts;
+			return -EROFS;
 		}
 		/*
 		 * Mounting a RDONLY partition read-write, so reread and
@@ -1394,14 +1387,16 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 		dquot_resume(sb, -1);
 	}
 
-	return 0;
-restore_opts:
-	sbi->s_mount_opt = old_opts.s_mount_opt;
-	sbi->s_resuid = old_opts.s_resuid;
-	sbi->s_resgid = old_opts.s_resgid;
-	sb->s_flags = old_sb_flags;
+	spin_lock(&sbi->s_lock);
+out_set:
+	sbi->s_mount_opt = new_opts.s_mount_opt;
+	sbi->s_resuid = new_opts.s_resuid;
+	sbi->s_resgid = new_opts.s_resgid;
+	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
 	spin_unlock(&sbi->s_lock);
-	return err;
+
+	return 0;
 }
 
 static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf)
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 57d4c3e2e94a..055ec6c586f7 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -73,41 +73,41 @@ static inline struct iso_inode_info *ISOFS_I(struct inode *inode)
 	return container_of(inode, struct iso_inode_info, vfs_inode);
 }
 
-static inline int isonum_711(char *p)
+static inline int isonum_711(u8 *p)
 {
-	return *(u8 *)p;
+	return *p;
 }
-static inline int isonum_712(char *p)
+static inline int isonum_712(s8 *p)
 {
-	return *(s8 *)p;
+	return *p;
 }
-static inline unsigned int isonum_721(char *p)
+static inline unsigned int isonum_721(u8 *p)
 {
 	return get_unaligned_le16(p);
 }
-static inline unsigned int isonum_722(char *p)
+static inline unsigned int isonum_722(u8 *p)
 {
 	return get_unaligned_be16(p);
 }
-static inline unsigned int isonum_723(char *p)
+static inline unsigned int isonum_723(u8 *p)
 {
 	/* Ignore bigendian datum due to broken mastering programs */
 	return get_unaligned_le16(p);
 }
-static inline unsigned int isonum_731(char *p)
+static inline unsigned int isonum_731(u8 *p)
 {
 	return get_unaligned_le32(p);
 }
-static inline unsigned int isonum_732(char *p)
+static inline unsigned int isonum_732(u8 *p)
 {
 	return get_unaligned_be32(p);
 }
-static inline unsigned int isonum_733(char *p)
+static inline unsigned int isonum_733(u8 *p)
 {
 	/* Ignore bigendian datum due to broken mastering programs */
 	return get_unaligned_le32(p);
 }
-extern int iso_date(char *, int);
+extern int iso_date(u8 *, int);
 
 struct inode;		/* To make gcc happy */
 
diff --git a/fs/isofs/rock.h b/fs/isofs/rock.h
index ef03625431bb..1558cf22ef8a 100644
--- a/fs/isofs/rock.h
+++ b/fs/isofs/rock.h
@@ -7,78 +7,78 @@
  */
 
 struct SU_SP_s {
-	unsigned char magic[2];
-	unsigned char skip;
+	__u8 magic[2];
+	__u8 skip;
 } __attribute__ ((packed));
 
 struct SU_CE_s {
-	char extent[8];
-	char offset[8];
-	char size[8];
+	__u8 extent[8];
+	__u8 offset[8];
+	__u8 size[8];
 };
 
 struct SU_ER_s {
-	unsigned char len_id;
-	unsigned char len_des;
-	unsigned char len_src;
-	unsigned char ext_ver;
-	char data[0];
+	__u8 len_id;
+	__u8 len_des;
+	__u8 len_src;
+	__u8 ext_ver;
+	__u8 data[0];
 } __attribute__ ((packed));
 
 struct RR_RR_s {
-	char flags[1];
+	__u8 flags[1];
 } __attribute__ ((packed));
 
 struct RR_PX_s {
-	char mode[8];
-	char n_links[8];
-	char uid[8];
-	char gid[8];
+	__u8 mode[8];
+	__u8 n_links[8];
+	__u8 uid[8];
+	__u8 gid[8];
 };
 
 struct RR_PN_s {
-	char dev_high[8];
-	char dev_low[8];
+	__u8 dev_high[8];
+	__u8 dev_low[8];
 };
 
 struct SL_component {
-	unsigned char flags;
-	unsigned char len;
-	char text[0];
+	__u8 flags;
+	__u8 len;
+	__u8 text[0];
 } __attribute__ ((packed));
 
 struct RR_SL_s {
-	unsigned char flags;
+	__u8 flags;
 	struct SL_component link;
 } __attribute__ ((packed));
 
 struct RR_NM_s {
-	unsigned char flags;
+	__u8 flags;
 	char name[0];
 } __attribute__ ((packed));
 
 struct RR_CL_s {
-	char location[8];
+	__u8 location[8];
 };
 
 struct RR_PL_s {
-	char location[8];
+	__u8 location[8];
 };
 
 struct stamp {
-	char time[7];
+	__u8 time[7];		/* actually 6 unsigned, 1 signed */
 } __attribute__ ((packed));
 
 struct RR_TF_s {
-	char flags;
+	__u8 flags;
 	struct stamp times[0];	/* Variable number of these beasts */
 } __attribute__ ((packed));
 
 /* Linux-specific extension for transparent decompression */
 struct RR_ZF_s {
-	char algorithm[2];
-	char parms[2];
-	char real_size[8];
+	__u8 algorithm[2];
+	__u8 parms[2];
+	__u8 real_size[8];
 };
 
 /*
@@ -94,9 +94,9 @@ struct RR_ZF_s {
 #define TF_LONG_FORM 128
 
 struct rock_ridge {
-	char signature[2];
-	unsigned char len;
-	unsigned char version;
+	__u8 signature[2];
+	__u8 len;
+	__u8 version;
 	union {
 		struct SU_SP_s SP;
 		struct SU_CE_s CE;
diff --git a/fs/isofs/util.c b/fs/isofs/util.c
index 42544bf0e222..e88dba721661 100644
--- a/fs/isofs/util.c
+++ b/fs/isofs/util.c
@@ -16,7 +16,7 @@
  * to GMT.  Thus  we should always be correct.
  */
 
-int iso_date(char * p, int flag)
+int iso_date(u8 *p, int flag)
 {
 	int year, month, day, hour, minute, second, tz;
 	int crtime;
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 54cf2d21b547..6702a6a0bbb5 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -10,6 +10,7 @@
 #include <linux/sched/user.h>
 #include <linux/types.h>
 #include <linux/wait.h>
+#include <linux/audit.h>
 
 #include "fanotify.h"
 
@@ -65,7 +66,7 @@ static int fanotify_get_response(struct fsnotify_group *group,
 	wait_event(group->fanotify_data.access_waitq, event->response);
 
 	/* userspace responded, convert to something usable */
-	switch (event->response) {
+	switch (event->response & ~FAN_AUDIT) {
 	case FAN_ALLOW:
 		ret = 0;
 		break;
@@ -73,6 +74,11 @@ static int fanotify_get_response(struct fsnotify_group *group,
 	default:
 		ret = -EPERM;
 	}
+
+	/* Check if the response should be audited */
+	if (event->response & FAN_AUDIT)
+		audit_fanotify(event->response & ~FAN_AUDIT);
+
 	event->response = 0;
 
 	pr_debug("%s: group=%p event=%p about to return ret=%d\n", __func__,
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 55499f5a1c96..d0d4bc4c4b70 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -179,7 +179,7 @@ static int process_access_response(struct fsnotify_group *group,
 	 * userspace can send a valid response or we will clean it up after the
 	 * timeout
 	 */
-	switch (response) {
+	switch (response & ~FAN_AUDIT) {
 	case FAN_ALLOW:
 	case FAN_DENY:
 		break;
@@ -190,6 +190,9 @@ static int process_access_response(struct fsnotify_group *group,
 	if (fd < 0)
 		return -EINVAL;
 
+	if ((response & FAN_AUDIT) && !group->fanotify_data.audit)
+		return -EINVAL;
+
 	event = dequeue_event(group, fd);
 	if (!event)
 		return -ENOENT;
@@ -713,7 +716,11 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
+#ifdef CONFIG_AUDITSYSCALL
+	if (flags & ~(FAN_ALL_INIT_FLAGS | FAN_ENABLE_AUDIT))
+#else
 	if (flags & ~FAN_ALL_INIT_FLAGS)
+#endif
 		return -EINVAL;
 
 	if (event_f_flags & ~FANOTIFY_INIT_ALL_EVENT_F_BITS)
@@ -795,6 +802,13 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
 		group->fanotify_data.max_marks = FANOTIFY_DEFAULT_MAX_MARKS;
 	}
 
+	if (flags & FAN_ENABLE_AUDIT) {
+		fd = -EPERM;
+		if (!capable(CAP_AUDIT_WRITE))
+			goto out_destroy_group;
+		group->fanotify_data.audit = true;
+	}
+
 	fd = anon_inode_getfd("[fanotify]", &fanotify_fops, group, f_flags);
 	if (fd < 0)
 		goto out_destroy_group;
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index 517f88c1dbe5..d478629c728b 100644
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -157,6 +157,9 @@ void fanotify_show_fdinfo(struct seq_file *m, struct file *f)
 	if (group->fanotify_data.max_marks == UINT_MAX)
 		flags |= FAN_UNLIMITED_MARKS;
 
+	if (group->fanotify_data.audit)
+		flags |= FAN_ENABLE_AUDIT;
+
 	seq_printf(m, "fanotify flags:%x event-flags:%x\n",
 		   flags, group->fanotify_data.f_flags);
 
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 9f78b5015f2e..39f1b0b0c76f 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -645,8 +645,15 @@ int dquot_writeback_dquots(struct super_block *sb, int type)
 			spin_unlock(&dq_list_lock);
 			dqstats_inc(DQST_LOOKUPS);
 			err = sb->dq_op->write_dquot(dquot);
-			if (!ret && err)
-				ret = err;
+			if (err) {
+				/*
+				 * Clear dirty bit anyway to avoid infinite
+				 * loop here.
+				 */
+				clear_dquot_dirty(dquot);
+				if (!ret)
+					ret = err;
+			}
 			dqput(dquot);
 			spin_lock(&dq_list_lock);
 		}
@@ -2139,7 +2146,7 @@ int dquot_file_open(struct inode *inode, struct file *file)
 
 	error = generic_file_open(inode, file);
 	if (!error && (file->f_mode & FMODE_WRITE))
-		dquot_initialize(inode);
+		error = dquot_initialize(inode);
 	return error;
 }
 EXPORT_SYMBOL(dquot_file_open);
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index e0fd65fe73e8..1b961b1d9699 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -58,7 +58,7 @@ static int __load_block_bitmap(struct super_block *sb,
 	int nr_groups = bitmap->s_nr_groups;
 
 	if (block_group >= nr_groups) {
-		udf_debug("block_group (%d) > nr_groups (%d)\n",
+		udf_debug("block_group (%u) > nr_groups (%d)\n",
 			  block_group, nr_groups);
 	}
 
@@ -122,7 +122,7 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
 	partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
 	if (bloc->logicalBlockNum + count < count ||
 	    (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
-		udf_debug("%d < %d || %d + %d > %d\n",
+		udf_debug("%u < %d || %u + %u > %u\n",
 			  bloc->logicalBlockNum, 0,
 			  bloc->logicalBlockNum, count,
 			  partmap->s_partition_len);
@@ -151,9 +151,9 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
 		bh = bitmap->s_block_bitmap[bitmap_nr];
 		for (i = 0; i < count; i++) {
 			if (udf_set_bit(bit + i, bh->b_data)) {
-				udf_debug("bit %ld already set\n", bit + i);
+				udf_debug("bit %lu already set\n", bit + i);
 				udf_debug("byte=%2x\n",
-					  ((char *)bh->b_data)[(bit + i) >> 3]);
+					  ((__u8 *)bh->b_data)[(bit + i) >> 3]);
 			}
 		}
 		udf_add_free_space(sb, sbi->s_partition, count);
@@ -218,16 +218,18 @@ out:
 	return alloc_count;
 }
 
-static int udf_bitmap_new_block(struct super_block *sb,
+static udf_pblk_t udf_bitmap_new_block(struct super_block *sb,
 				struct udf_bitmap *bitmap, uint16_t partition,
 				uint32_t goal, int *err)
 {
 	struct udf_sb_info *sbi = UDF_SB(sb);
-	int newbit, bit = 0, block, block_group, group_start;
+	int newbit, bit = 0;
+	udf_pblk_t block;
+	int block_group, group_start;
 	int end_goal, nr_groups, bitmap_nr, i;
 	struct buffer_head *bh = NULL;
 	char *ptr;
-	int newblock = 0;
+	udf_pblk_t newblock = 0;
 
 	*err = -ENOSPC;
 	mutex_lock(&sbi->s_alloc_mutex);
@@ -362,7 +364,7 @@ static void udf_table_free_blocks(struct super_block *sb,
 	partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
 	if (bloc->logicalBlockNum + count < count ||
 	    (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
-		udf_debug("%d < %d || %d + %d > %d\n",
+		udf_debug("%u < %d || %u + %u > %u\n",
 			  bloc->logicalBlockNum, 0,
 			  bloc->logicalBlockNum, count,
 			  partmap->s_partition_len);
@@ -515,7 +517,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
 
 	while (first_block != eloc.logicalBlockNum &&
 	       (etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
-		udf_debug("eloc=%d, elen=%d, first_block=%d\n",
+		udf_debug("eloc=%u, elen=%u, first_block=%u\n",
 			  eloc.logicalBlockNum, elen, first_block);
 		; /* empty loop body */
 	}
@@ -545,13 +547,14 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
 	return alloc_count;
 }
 
-static int udf_table_new_block(struct super_block *sb,
+static udf_pblk_t udf_table_new_block(struct super_block *sb,
 			       struct inode *table, uint16_t partition,
 			       uint32_t goal, int *err)
 {
 	struct udf_sb_info *sbi = UDF_SB(sb);
 	uint32_t spread = 0xFFFFFFFF, nspread = 0xFFFFFFFF;
-	uint32_t newblock = 0, adsize;
+	udf_pblk_t newblock = 0;
+	uint32_t adsize;
 	uint32_t elen, goal_elen = 0;
 	struct kernel_lb_addr eloc, uninitialized_var(goal_eloc);
 	struct extent_position epos, goal_epos;
@@ -700,12 +703,12 @@ inline int udf_prealloc_blocks(struct super_block *sb,
 	return allocated;
 }
 
-inline int udf_new_block(struct super_block *sb,
+inline udf_pblk_t udf_new_block(struct super_block *sb,
 			 struct inode *inode,
 			 uint16_t partition, uint32_t goal, int *err)
 {
 	struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
-	int block;
+	udf_pblk_t block;
 
 	if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
 		block = udf_bitmap_new_block(sb,
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 2d0e028067eb..c19dba45aa20 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -43,7 +43,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 	struct udf_fileident_bh fibh = { .sbh = NULL, .ebh = NULL};
 	struct fileIdentDesc *fi = NULL;
 	struct fileIdentDesc cfi;
-	int block, iblock;
+	udf_pblk_t block, iblock;
 	loff_t nf_pos;
 	int flen;
 	unsigned char *fname = NULL, *copy_name = NULL;
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
index 7aa48bd7cbaf..0a98a2369738 100644
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -26,7 +26,8 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
 					 sector_t *offset)
 {
 	struct fileIdentDesc *fi;
-	int i, num, block;
+	int i, num;
+	udf_pblk_t block;
 	struct buffer_head *tmp, *bha[16];
 	struct udf_inode_info *iinfo = UDF_I(dir);
 
@@ -51,7 +52,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
 	}
 
 	if (fibh->eoffset == dir->i_sb->s_blocksize) {
-		int lextoffset = epos->offset;
+		uint32_t lextoffset = epos->offset;
 		unsigned char blocksize_bits = dir->i_sb->s_blocksize_bits;
 
 		if (udf_next_aext(dir, epos, eloc, elen, 1) !=
@@ -110,7 +111,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir