Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

22 files changed, 133 insertions, 122 deletions

diff --git a/fs/jfs/Makefile b/fs/jfs/Makefile
index 3adb6395e42d..a58fa72d7e59 100644
--- a/fs/jfs/Makefile
+++ b/fs/jfs/Makefile
@@ -13,4 +13,4 @@ jfs-y    := super.o file.o inode.o namei.o jfs_mount.o jfs_umount.o \
 
 jfs-$(CONFIG_JFS_POSIX_ACL) += acl.o
 
-EXTRA_CFLAGS += -D_JFS_4K
+ccflags-y := -D_JFS_4K
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 1057a4998e4e..e5de9422fa32 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -114,10 +114,14 @@ out:
         return rc;
 }
 
-int jfs_check_acl(struct inode *inode, int mask)
+int jfs_check_acl(struct inode *inode, int mask, unsigned int flags)
 {
-        struct posix_acl *acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
+        struct posix_acl *acl;
+
+        if (flags & IPERM_FLAG_RCU)
+                return -ECHILD;
 
+        acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
         if (IS_ERR(acl))
                 return PTR_ERR(acl);
         if (acl) {
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index c5ce6c1d1ff4..2f3f531f3606 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -66,9 +66,9 @@ static int jfs_open(struct inode *inode, struct file *file)
                 struct jfs_inode_info *ji = JFS_IP(inode);
                 spin_lock_irq(&ji->ag_lock);
                 if (ji->active_ag == -1) {
-                        ji->active_ag = ji->agno;
-                        atomic_inc(
-                            &JFS_SBI(inode->i_sb)->bmap->db_active[ji->agno]);
+                        struct jfs_sb_info *jfs_sb = JFS_SBI(inode->i_sb);
+                        ji->active_ag = BLKTOAG(addressPXD(&ji->ixpxd), jfs_sb);
+                        atomic_inc( &jfs_sb->bmap->db_active[ji->active_ag]);
                 }
                 spin_unlock_irq(&ji->ag_lock);
         }
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 9978803ceedc..109655904bbc 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -173,7 +173,7 @@ void jfs_evict_inode(struct inode *inode)
         dquot_drop(inode);
 }
 
-void jfs_dirty_inode(struct inode *inode)
+void jfs_dirty_inode(struct inode *inode, int flags)
 {
         static int noisy = 5;
 
@@ -352,7 +352,6 @@ const struct address_space_operations jfs_aops = {
         .readpages      = jfs_readpages,
         .writepage      = jfs_writepage,
         .writepages     = jfs_writepages,
-        .sync_page      = block_sync_page,
         .write_begin    = jfs_write_begin,
         .write_end      = nobh_write_end,
         .bmap           = jfs_bmap,
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index afe222bf300f..6f98a1866776 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -72,7 +72,7 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 if (err)
                         return err;
 
-                if (!is_owner_or_cap(inode)) {
+                if (!inode_owner_or_capable(inode)) {
                         err = -EACCES;
                         goto setflags_out;
                 }
diff --git a/fs/jfs/jfs_acl.h b/fs/jfs/jfs_acl.h
index 54e07559878d..f9285c4900fa 100644
--- a/fs/jfs/jfs_acl.h
+++ b/fs/jfs/jfs_acl.h
@@ -20,7 +20,7 @@
 
 #ifdef CONFIG_JFS_POSIX_ACL
 
-int jfs_check_acl(struct inode *, int);
+int jfs_check_acl(struct inode *, int, unsigned int flags);
 int jfs_init_acl(tid_t, struct inode *, struct inode *);
 int jfs_acl_chmod(struct inode *inode);
 
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index c92ea3b3ea5e..4496872cf4e7 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -1649,7 +1649,7 @@ static int dbFindCtl(struct bmap * bmp, int l2nb, int level, s64 * blkno)
                 }
 
                 /* search the tree within the dmap control page for
-                 * sufficent free space.  if sufficient free space is found,
+                 * sufficient free space.  if sufficient free space is found,
                  * dbFindLeaf() returns the index of the leaf at which
                  * free space was found.
                  */
@@ -2744,7 +2744,7 @@ static int dbJoin(dmtree_t * tp, int leafno, int newval)
                         /* check which (leafno or buddy) is the left buddy.
                          * the left buddy gets to claim the blocks resulting
                          * from the join while the right gets to claim none.
-                         * the left buddy is also eligable to participate in
+                         * the left buddy is also eligible to participate in
                          * a join at the next higher level while the right
                          * is not.
                          *
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c
index 5d3bbd10f8db..e5fe8506ed16 100644
--- a/fs/jfs/jfs_extent.c
+++ b/fs/jfs/jfs_extent.c
@@ -126,7 +126,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, bool abnr)
 
         /* allocate the disk blocks for the extent.  initially, extBalloc()
          * will try to allocate disk blocks for the requested size (xlen).
-         * if this fails (xlen contiguous free blocks not avaliable), it'll
+         * if this fails (xlen contiguous free blocks not available), it'll
          * try to allocate a smaller number of blocks (producing a smaller
          * extent), with this smaller number of blocks consisting of the
          * requested number of blocks rounded down to the next smaller
@@ -481,7 +481,7 @@ int extFill(struct inode *ip, xad_t * xp)
  *
  *              initially, we will try to allocate disk blocks for the
  *              requested size (nblocks).  if this fails (nblocks
- *              contiguous free blocks not avaliable), we'll try to allocate
+ *              contiguous free blocks not available), we'll try to allocate
  *              a smaller number of blocks (producing a smaller extent), with
  *              this smaller number of blocks consisting of the requested
  *              number of blocks rounded down to the next smaller power of 2
@@ -575,7 +575,7 @@ extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno)
  *              to a new set of blocks.  If moving the extent, we initially
  *              will try to allocate disk blocks for the requested size
  *              (newnblks).  if this fails (new contiguous free blocks not
- *              avaliable), we'll try to allocate a smaller number of
+ *              available), we'll try to allocate a smaller number of
  *              blocks (producing a smaller extent), with this smaller
  *              number of blocks consisting of the requested number of
  *              blocks rounded down to the next smaller power of 2
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index f8332dc8eeb2..b78b2f978f04 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -397,7 +397,7 @@ int diRead(struct inode *ip)
         release_metapage(mp);
 
         /* set the ag for the inode */
-        JFS_IP(ip)->agno = BLKTOAG(agstart, sbi);
+        JFS_IP(ip)->agstart = agstart;
         JFS_IP(ip)->active_ag = -1;
 
         return (rc);
@@ -497,7 +497,7 @@ struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
          * appear hashed, but do not put on any lists.  hlist_del()
          * will work fine and require no locking.
          */
-        ip->i_hash.pprev = &ip->i_hash.next;
+        hlist_add_fake(&ip->i_hash);
 
         return (ip);
 }
@@ -901,7 +901,7 @@ int diFree(struct inode *ip)
 
         /* get the allocation group for this ino.
          */
-        agno = JFS_IP(ip)->agno;
+        agno = BLKTOAG(JFS_IP(ip)->agstart, JFS_SBI(ip->i_sb));
 
         /* Lock the AG specific inode map information
          */
@@ -1069,7 +1069,7 @@ int diFree(struct inode *ip)
                  */
                 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) {
                         /* in preparation for removing the iag from the
-                         * ag extent free list, read the iags preceeding
+                         * ag extent free list, read the iags preceding
                          * and following the iag on the ag extent free
                          * list.
                          */
@@ -1095,7 +1095,7 @@ int diFree(struct inode *ip)
                 int inofreefwd = le32_to_cpu(iagp->inofreefwd);
 
                 /* in preparation for removing the iag from the
-                 * ag inode free list, read the iags preceeding
+                 * ag inode free list, read the iags preceding
                  * and following the iag on the ag inode free
                  * list.  before reading these iags, we must make
                  * sure that we already don't have them in hand
@@ -1315,12 +1315,11 @@ int diFree(struct inode *ip)
 static inline void
 diInitInode(struct inode *ip, int iagno, int ino, int extno, struct iag * iagp)
 {
-        struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
         struct jfs_inode_info *jfs_ip = JFS_IP(ip);
 
         ip->i_ino = (iagno << L2INOSPERIAG) + ino;
         jfs_ip->ixpxd = iagp->inoext[extno];
-        jfs_ip->agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi);
+        jfs_ip->agstart = le64_to_cpu(iagp->agstart);
         jfs_ip->active_ag = -1;
 }
 
@@ -1379,7 +1378,7 @@ int diAlloc(struct inode *pip, bool dir, struct inode *ip)
          */
 
         /* get the ag number of this iag */
-        agno = JFS_IP(pip)->agno;
+        agno = BLKTOAG(JFS_IP(pip)->agstart, JFS_SBI(pip->i_sb));
 
         if (atomic_read(&JFS_SBI(pip->i_sb)->bmap->db_active[agno])) {
                 /*
@@ -1681,7 +1680,7 @@ diAllocAG(struct inomap * imap, int agno, bool dir, struct inode *ip)
          * try to allocate a new extent of free inodes.
          */
         if (addext) {
-                /* if free space is not avaliable for this new extent, try
+                /* if free space is not available for this new extent, try
                  * below to allocate a free and existing (already backed)
                  * inode from the ag.
                  */
@@ -2036,7 +2035,7 @@ static int diAllocBit(struct inomap * imap, struct iag * iagp, int ino)
 
         /* check if this is the last free inode within the iag.
          * if so, it will have to be removed from the ag free
-         * inode list, so get the iags preceeding and following
+         * inode list, so get the iags preceding and following
          * it on the list.
          */
         if (iagp->nfreeinos == cpu_to_le32(1)) {
@@ -2208,7 +2207,7 @@ static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
 
         /* check if this is the last free extent within the
          * iag.  if so, the iag must be removed from the ag
-         * free extent list, so get the iags preceeding and
+         * free extent list, so get the iags preceding and
          * following the iag on this list.
          */
         if (iagp->nfreeexts == cpu_to_le32(1)) {
@@ -2504,7 +2503,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
                 }
 
 
-                /* get the next avaliable iag number */
+                /* get the next available iag number */
                 iagno = imap->im_nextiag;
 
                 /* make sure that we have not exceeded the maximum inode
@@ -2615,7 +2614,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 
                 duplicateIXtree(sb, blkno, xlen, &xaddr);
 
-                /* update the next avaliable iag number */
+                /* update the next available iag number */
                 imap->im_nextiag += 1;
 
                 /* Add the iag to the iag free list so we don't lose the iag
@@ -2921,10 +2920,9 @@ int diExtendFS(struct inode *ipimap, struct inode *ipbmap)
                         continue;
                 }
 
-                /* agstart that computes to the same ag is treated as same; */
                 agstart = le64_to_cpu(iagp->agstart);
-                /* iagp->agstart = agstart & ~(mp->db_agsize - 1); */
                 n = agstart >> mp->db_agl2size;
+                iagp->agstart = cpu_to_le64((s64)n << mp->db_agl2size);
 
                 /* compute backed inodes */
                 numinos = (EXTSPERIAG - le32_to_cpu(iagp->nfreeexts))
diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
index 1439f119ec83..584a4a1a6e81 100644
--- a/fs/jfs/jfs_incore.h
+++ b/fs/jfs/jfs_incore.h
@@ -50,8 +50,9 @@ struct jfs_inode_info {
         short   btindex;        /* btpage entry index*/
         struct inode *ipimap;   /* inode map                    */
         unsigned long cflag;    /* commit flags         */
+        u64     agstart;        /* agstart of the containing IAG */
         u16     bxflag;         /* xflag of pseudo buffer?      */
-        unchar  agno;           /* ag number                    */
+        unchar  pad;
         signed char active_ag;  /* ag currently allocating from */
         lid_t   blid;           /* lid of pseudo buffer?        */
         lid_t   atlhead;        /* anonymous tlock list head    */
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 155e91eff07d..ec2fb8b945fc 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -28,7 +28,7 @@ extern struct inode *jfs_iget(struct super_block *, unsigned long);
 extern int jfs_commit_inode(struct inode *, int);
 extern int jfs_write_inode(struct inode *, struct writeback_control *);
 extern void jfs_evict_inode(struct inode *);
-extern void jfs_dirty_inode(struct inode *);
+extern void jfs_dirty_inode(struct inode *, int);
 extern void jfs_truncate(struct inode *);
 extern void jfs_truncate_nolock(struct inode *, loff_t);
 extern void jfs_free_zero_link(struct inode *);
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index c51af2a14516..583636f745e5 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1010,15 +1010,13 @@ static int lmLogSync(struct jfs_log * log, int hard_sync)
                  * option 2 - shutdown file systems
                  *            associated with log ?
                  * option 3 - extend log ?
-                 */
-                /*
                  * option 4 - second chance
                  *
                  * mark log wrapped, and continue.
                  * when all active transactions are completed,
-                 * mark log vaild for recovery.
+                 * mark log valid for recovery.
                  * if crashed during invalid state, log state
-                 * implies invald log, forcing fsck().
+                 * implies invalid log, forcing fsck().
                  */
                 /* mark log state log wrap in log superblock */
                 /* log->state = LOGWRAP; */
@@ -1122,16 +1120,13 @@ int lmLogOpen(struct super_block *sb)
          * file systems to log may have n-to-1 relationship;
          */
 
-        bdev = open_by_devnum(sbi->logdev, FMODE_READ|FMODE_WRITE);
+        bdev = blkdev_get_by_dev(sbi->logdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL,
+                                 log);
         if (IS_ERR(bdev)) {
-                rc = -PTR_ERR(bdev);
+                rc = PTR_ERR(bdev);
                 goto free;
         }
 
-        if ((rc = bd_claim(bdev, log))) {
-                goto close;
-        }
-
         log->bdev = bdev;
         memcpy(log->uuid, sbi->loguuid, sizeof(log->uuid));
 
@@ -1139,7 +1134,7 @@ int lmLogOpen(struct super_block *sb)
          * initialize log:
          */
         if ((rc = lmLogInit(log)))
-                goto unclaim;
+                goto close;
 
         list_add(&log->journal_list, &jfs_external_logs);
 
@@ -1165,11 +1160,8 @@ journal_found:
         list_del(&log->journal_list);
         lbmLogShutdown(log);
 
-      unclaim:
-        bd_release(bdev);
-
       close:            /* close external log device */
-        blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
+        blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
 
       free:             /* free log descriptor */
         mutex_unlock(&jfs_log_mutex);
@@ -1514,8 +1506,7 @@ int lmLogClose(struct super_block *sb)
         bdev = log->bdev;
         rc = lmLogShutdown(log);
 
-        bd_release(bdev);
-        blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
+        blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
 
         kfree(log);
 
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
index 9236bc49ae7f..e38c21598850 100644
--- a/fs/jfs/jfs_logmgr.h
+++ b/fs/jfs/jfs_logmgr.h
@@ -288,7 +288,7 @@ struct lrd {
                 /*
                  *      SYNCPT: log sync point
                  *
-                 * replay log upto syncpt address specified;
+                 * replay log up to syncpt address specified;
                  */
                 struct {
                         __le32 sync;    /* 4: syncpt address (0 = here) */
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 48b44bd8267b..6740d34cd82b 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -583,7 +583,6 @@ static void metapage_invalidatepage(struct page *page, unsigned long offset)
 const struct address_space_operations jfs_metapage_aops = {
         .readpage       = metapage_readpage,
         .writepage      = metapage_writepage,
-        .sync_page      = block_sync_page,
         .releasepage    = metapage_releasepage,
         .invalidatepage = metapage_invalidatepage,
         .set_page_dirty = __set_page_dirty_nobuffers,
diff --git a/fs/jfs/jfs_metapage.h b/fs/jfs/jfs_metapage.h
index d94f8d9e87d7..a78beda85f68 100644
--- a/fs/jfs/jfs_metapage.h
+++ b/fs/jfs/jfs_metapage.h
@@ -75,7 +75,7 @@ extern void grab_metapage(struct metapage *);
 extern void force_metapage(struct metapage *);
 
 /*
- * hold_metapage and put_metapage are used in conjuction.  The page lock
+ * hold_metapage and put_metapage are used in conjunction.  The page lock
  * is not dropped between the two, so no other threads can get or release
  * the metapage
  */
diff --git a/fs/jfs/jfs_mount.c b/fs/jfs/jfs_mount.c
index 7b698f2ec45a..9895595fd2f2 100644
--- a/fs/jfs/jfs_mount.c
+++ b/fs/jfs/jfs_mount.c
@@ -97,7 +97,7 @@ int jfs_mount(struct super_block *sb)
 
         ipaimap = diReadSpecial(sb, AGGREGATE_I, 0);
         if (ipaimap == NULL) {
-                jfs_err("jfs_mount: Faild to read AGGREGATE_I");
+                jfs_err("jfs_mount: Failed to read AGGREGATE_I");
                 rc = -EIO;
                 goto errout20;
         }
@@ -148,7 +148,7 @@ int jfs_mount(struct super_block *sb)
         if ((sbi->mntflag & JFS_BAD_SAIT) == 0) {
                 ipaimap2 = diReadSpecial(sb, AGGREGATE_I, 1);
                 if (!ipaimap2) {
-                        jfs_err("jfs_mount: Faild to read AGGREGATE_I");
+                        jfs_err("jfs_mount: Failed to read AGGREGATE_I");
                         rc = -EIO;
                         goto errout35;
                 }
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index d945ea76b445..f6cc0c09ec63 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -636,7 +636,7 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
          * the inode of the page and available to all anonymous
          * transactions until txCommit() time at which point
          * they are transferred to the transaction tlock list of
-         * the commiting transaction of the inode)
+         * the committing transaction of the inode)
          */
         if (xtid == 0) {
                 tlck->tid = tid;
@@ -1279,7 +1279,7 @@ int txCommit(tid_t tid,		/* transaction identifier */
          * lazy commit thread finishes processing
          */
         if (tblk->xflag & COMMIT_DELETE) {
-                atomic_inc(&tblk->u.ip->i_count);
+                ihold(tblk->u.ip);
                 /*
                  * Avoid a rare deadlock
                  *
diff --git a/fs/jfs/jfs_xattr.h b/fs/jfs/jfs_xattr.h
index 88b6cc535bf2..e9e100fd7c09 100644
--- a/fs/jfs/jfs_xattr.h
+++ b/fs/jfs/jfs_xattr.h
@@ -62,10 +62,11 @@ extern ssize_t jfs_listxattr(struct dentry *, char *, size_t);
 extern int jfs_removexattr(struct dentry *, const char *);
 
 #ifdef CONFIG_JFS_SECURITY
-extern int jfs_init_security(tid_t, struct inode *, struct inode *);
+extern int jfs_init_security(tid_t, struct inode *, struct inode *,
+                             const struct qstr *);
 #else
 static inline int jfs_init_security(tid_t tid, struct inode *inode,
-                                    struct inode *dir)
+                                    struct inode *dir, const struct qstr *qstr)
 {
         return 0;
 }
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index a9cf8e8675be..eaaf2b511e89 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/namei.h>
 #include <linux/ctype.h>
 #include <linux/quotaops.h>
 #include <linux/exportfs.h>
@@ -114,7 +115,7 @@ static int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
         if (rc)
                 goto out3;
 
-        rc = jfs_init_security(tid, ip, dip);
+        rc = jfs_init_security(tid, ip, dip, &dentry->d_name);
         if (rc) {
                 txAbort(tid, 0);
                 goto out3;
@@ -252,7 +253,7 @@ static int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
         if (rc)
                 goto out3;
 
-        rc = jfs_init_security(tid, ip, dip);
+        rc = jfs_init_security(tid, ip, dip, &dentry->d_name);
         if (rc) {
                 txAbort(tid, 0);
                 goto out3;
@@ -808,9 +809,6 @@ static int jfs_link(struct dentry *old_dentry,
         if (ip->i_nlink == JFS_LINK_MAX)
                 return -EMLINK;
 
-        if (ip->i_nlink == 0)
-                return -ENOENT;
-
         dquot_initialize(dir);
 
         tid = txBegin(ip->i_sb, 0);
@@ -839,7 +837,7 @@ static int jfs_link(struct dentry *old_dentry,
         ip->i_ctime = CURRENT_TIME;
         dir->i_ctime = dir->i_mtime = CURRENT_TIME;
         mark_inode_dirty(dir);
-        atomic_inc(&ip->i_count);
+        ihold(ip);
 
         iplist[0] = ip;
         iplist[1] = dir;
@@ -931,7 +929,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
         mutex_lock_nested(&JFS_IP(dip)->commit_mutex, COMMIT_MUTEX_PARENT);
         mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);
 
-        rc = jfs_init_security(tid, ip, dip);
+        rc = jfs_init_security(tid, ip, dip, &dentry->d_name);
         if (rc)
                 goto out3;
 
@@ -1394,7 +1392,7 @@ static int jfs_mknod(struct inode *dir, struct dentry *dentry,
         if (rc)
                 goto out3;
 
-        rc = jfs_init_security(tid, ip, dir);
+        rc = jfs_init_security(tid, ip, dir, &dentry->d_name);
         if (rc) {
                 txAbort(tid, 0);
                 goto out3;
@@ -1464,9 +1462,6 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
 
         jfs_info("jfs_lookup: name = %s", name);
 
-        if (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2)
-                dentry->d_op = &jfs_ci_dentry_operations;
-
         if ((name[0] == '.') && (len == 1))
                 inum = dip->i_ino;
         else if (strcmp(name, "..") == 0)
@@ -1491,12 +1486,7 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
                 return ERR_CAST(ip);
         }
 
-        dentry = d_splice_alias(ip, dentry);
-
-        if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2))
-                dentry->d_op = &jfs_ci_dentry_operations;
-
-        return dentry;
+        return d_splice_alias(ip, dentry);
 }
 
 static struct inode *jfs_nfs_get_inode(struct super_block *sb,
@@ -1573,7 +1563,8 @@ const struct file_operations jfs_dir_operations = {
         .llseek         = generic_file_llseek,
 };
 
-static int jfs_ci_hash(struct dentry *dir, struct qstr *this)
+static int jfs_ci_hash(const struct dentry *dir, const struct inode *inode,
+                struct qstr *this)
 {
         unsigned long hash;
         int i;
@@ -1586,32 +1577,63 @@ static int jfs_ci_hash(struct dentry *dir, struct qstr *this)
         return 0;
 }
 
-static int jfs_ci_compare(struct dentry *dir, struct qstr *a, struct qstr *b)
+static int jfs_ci_compare(const struct dentry *parent,
+                const struct inode *pinode,
+                const struct dentry *dentry, const struct inode *inode,
+                unsigned int len, const char *str, const struct qstr *name)
 {
         int i, result = 1;
 
-        if (a->len != b->len)
+        if (len != name->len)
                 goto out;
-        for (i=0; i < a->len; i++) {
-                if (tolower(a->name[i]) != tolower(b->name[i]))
+        for (i=0; i < len; i++) {
+                if (tolower(str[i]) != tolower(name->name[i]))
                         goto out;
         }
         result = 0;
+out:
+        return result;
+}
 
+static int jfs_ci_revalidate(struct dentry *dentry, struct nameidata *nd)
+{
+        if (nd && nd->flags & LOOKUP_RCU)
+                return -ECHILD;
         /*
-         * We want creates to preserve case.  A negative dentry, a, that
-         * has a different case than b may cause a new entry to be created
-         * with the wrong case.  Since we can't tell if a comes from a negative
-         * dentry, we blindly replace it with b.  This should be harmless if
-         * a is not a negative dentry.
+         * This is not negative dentry. Always valid.
+         *
+         * Note, rename() to existing directory entry will have ->d_inode,
+         * and will use existing name which isn't specified name by user.
+         *
+         * We may be able to drop this positive dentry here. But dropping
+         * positive dentry isn't good idea. So it's unsupported like
+         * rename("filename", "FILENAME") for now.
          */
-        memcpy((unsigned char *)a->name, b->name, a->len);
-out:
-        return result;
+        if (dentry->d_inode)
+                return 1;
+
+        /*
+         * This may be nfsd (or something), anyway, we can't see the
+         * intent of this. So, since this can be for creation, drop it.
+         */
+        if (!nd)
+                return 0;
+
+        /*
+         * Drop the negative dentry, in order to make sure to use the
+         * case sensitive name which is specified by user if this is
+         * for creation.
+         */
+        if (!(nd->flags & (LOOKUP_CONTINUE | LOOKUP_PARENT))) {
+                if (nd->flags & (LOOKUP_CREATE | LOOKUP_RENAME_TARGET))
+                        return 0;
+        }
+        return 1;
 }
 
 const struct dentry_operations jfs_ci_dentry_operations =
 {
         .d_hash = jfs_ci_hash,
         .d_compare = jfs_ci_compare,
+        .d_revalidate = jfs_ci_revalidate,
 };
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index 1aba0039f1c9..8d0c1c7c0820 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -57,7 +57,7 @@
  * 2. compute new FSCKSize from new LVSize;
  * 3. set new FSSize as MIN(FSSize, LVSize-(LogSize+FSCKSize)) where
  *    assert(new FSSize >= old FSSize),
- *    i.e., file system must not be shrinked;
+ *    i.e., file system must not be shrunk;
  */
 int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 {
@@ -80,7 +80,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
         int log_formatted = 0;
         struct inode *iplist[1];
         struct jfs_superblock *j_sb, *j_sb2;
-        uint old_agsize;
+        s64 old_agsize;
         int agsizechanged = 0;
         struct buffer_head *bh, *bh2;
 
@@ -182,7 +182,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
          */
         newFSSize = newLVSize - newLogSize - newFSCKSize;
 
-        /* file system cannot be shrinked */
+        /* file system cannot be shrunk */
         if (newFSSize < bmp->db_mapsize) {
                 rc = -EINVAL;
                 goto out;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index ec8c3e4baca3..06c8a67cbe76 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -33,7 +33,6 @@
 #include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <linux/seq_file.h>
-#include <linux/smp_lock.h>
 
 #include "jfs_incore.h"
 #include "jfs_filsys.h"
@@ -116,6 +115,14 @@ static struct inode *jfs_alloc_inode(struct super_block *sb)
         return &jfs_inode->vfs_inode;
 }
 
+static void jfs_i_callback(struct rcu_head *head)
+{
+        struct inode *inode = container_of(head, struct inode, i_rcu);
+        struct jfs_inode_info *ji = JFS_IP(inode);
+        INIT_LIST_HEAD(&inode->i_dentry);
+        kmem_cache_free(jfs_inode_cachep, ji);
+}
+
 static void jfs_destroy_inode(struct inode *inode)
 {
         struct jfs_inode_info *ji = JFS_IP(inode);
@@ -129,7 +136,7 @@ static void jfs_destroy_inode(struct inode *inode)
                 ji->active_ag = -1;
         }
         spin_unlock_irq(&ji->ag_lock);
-        kmem_cache_free(jfs_inode_cachep, ji);
+        call_rcu(&inode->i_rcu, jfs_i_callback);
 }
 
 static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -176,8 +183,6 @@ static void jfs_put_super(struct super_block *sb)
 
         dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
 
-        lock_kernel();
-
         rc = jfs_umount(sb);
         if (rc)
                 jfs_err("jfs_umount failed with return code %d", rc);
@@ -188,8 +193,6 @@ static void jfs_put_super(struct super_block *sb)
         iput(sbi->direct_inode);
 
         kfree(sbi);
-
-        unlock_kernel();
 }
 
 enum {
@@ -369,19 +372,16 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
         if (!parse_options(data, sb, &newLVSize, &flag)) {
                 return -EINVAL;
         }
-        lock_kernel();
+
         if (newLVSize) {
                 if (sb->s_flags & MS_RDONLY) {
                         printk(KERN_ERR
                   "JFS: resize requires volume to be mounted read-write\n");
-                        unlock_kernel();
                         return -EROFS;
                 }
                 rc = jfs_extendfs(sb, newLVSize, 0);
-                if (rc) {
-                        unlock_kernel();
+                if (rc)
                         return rc;
-                }
         }
 
         if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
@@ -397,36 +397,30 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
                 /* mark the fs r/w for quota activity */
                 sb->s_flags &= ~MS_RDONLY;
 
-                unlock_kernel();
                 dquot_resume(sb, -1);
                 return ret;
         }
         if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {
                 rc = dquot_suspend(sb, -1);
                 if (rc < 0) {
-                        unlock_kernel();
                         return rc;
                 }
                 rc = jfs_umount_rw(sb);
                 JFS_SBI(sb)->flag = flag;
-                unlock_kernel();
                 return rc;
         }
         if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY))
                 if (!(sb->s_flags & MS_RDONLY)) {
                         rc = jfs_umount_rw(sb);
-                        if (rc) {
-                                unlock_kernel();
+                        if (rc)
                                 return rc;
-                        }
+
                         JFS_SBI(sb)->flag = flag;
                         ret = jfs_mount_rw(sb, 1);
-                        unlock_kernel();
                         return ret;
                 }
         JFS_SBI(sb)->flag = flag;
 
-        unlock_kernel();
         return 0;
 }
 
@@ -446,6 +440,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
         sbi = kzalloc(sizeof (struct jfs_sb_info), GFP_KERNEL);
         if (!sbi)
                 return -ENOMEM;
+
         sb->s_fs_info = sbi;
         sbi->sb = sb;
         sbi->uid = sbi->gid = sbi->umask = -1;
@@ -520,6 +515,9 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 
         sb->s_magic = JFS_SUPER_MAGIC;
 
+        if (sbi->mntflag & JFS_OS2)
+                sb->s_d_op = &jfs_ci_dentry_operations;
+
         inode = jfs_iget(sb, ROOT_I);
         if (IS_ERR(inode)) {
                 ret = PTR_ERR(inode);
@@ -529,9 +527,6 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
         if (!sb->s_root)
                 goto out_no_root;
 
-        if (sbi->mntflag & JFS_OS2)
-                sb->s_root->d_op = &jfs_ci_dentry_operations;
-
         /* logical blocks are represented by 40 bits in pxd_t, etc. */
         sb->s_maxbytes = ((u64) sb->s_blocksize) << 40;
 #if BITS_PER_LONG == 32
@@ -596,11 +591,10 @@ static int jfs_unfreeze(struct super_block *sb)
         return 0;
 }
 
-static int jfs_get_sb(struct file_system_type *fs_type,
-        int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *jfs_do_mount(struct file_system_type *fs_type,
+        int flags, const char *dev_name, void *data)
 {
-        return get_sb_bdev(fs_type, flags, dev_name, data, jfs_fill_super,
-                           mnt);
+        return mount_bdev(fs_type, flags, dev_name, data, jfs_fill_super);
 }
 
 static int jfs_sync_fs(struct super_block *sb, int wait)
@@ -650,7 +644,7 @@ static int jfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 
 /* Read data from quotafile - avoid pagecache and such because we cannot afford
  * acquiring the locks... As quota files are never truncated and quota code
- * itself serializes the operations (and noone else should touch the files)
+ * itself serializes the operations (and no one else should touch the files)
  * we don't have to be afraid of races */
 static ssize_t jfs_quota_read(struct super_block *sb, int type, char *data,
                               size_t len, loff_t off)
@@ -783,7 +777,7 @@ static const struct export_operations jfs_export_operations = {
 static struct file_system_type jfs_fs_type = {
         .owner          = THIS_MODULE,
         .name           = "jfs",
-        .get_sb         = jfs_get_sb,
+        .mount          = jfs_do_mount,
         .kill_sb        = kill_block_super,
         .fs_flags       = FS_REQUIRES_DEV,
 };
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 2d7f165d0f1d..24838f1eeee5 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -678,7 +678,7 @@ static int can_set_system_xattr(struct inode *inode, const char *name,
         struct posix_acl *acl;
         int rc;
 
-        if (!is_owner_or_cap(inode))
+        if (!inode_owner_or_capable(inode))
                 return -EPERM;
 
         /*
@@ -1091,7 +1091,8 @@ int jfs_removexattr(struct dentry *dentry, const char *name)
 }
 
 #ifdef CONFIG_JFS_SECURITY
-int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir)
+int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir,
+                      const struct qstr *qstr)
 {
         int rc;
         size_t len;
@@ -1099,7 +1100,8 @@ int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir)
         char *suffix;
         char *name;
 
-        rc = security_inode_init_security(inode, dir, &suffix, &value, &len);
+        rc = security_inode_init_security(inode, dir, qstr, &suffix, &value,
+                                          &len);
         if (rc) {
                 if (rc == -EOPNOTSUPP)
                         return 0;