JFS fixes for 5.14

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Merge tag 'jfs-5.14' of git://github.com/kleikamp/linux-shaggy

Pull jfs updates from David Kleikamp:
 "JFS fixes for 5.14"

* tag 'jfs-5.14' of git://github.com/kleikamp/linux-shaggy:
  jfs: Avoid field-overflowing memcpy()
  jfs: remove unnecessary oom message
  jfs: fix GPF in diFree
  fs/jfs: Fix missing error code in lmLogInit()
  jfs: Remove trailing semicolon in macros
  fs: Fix typo issue

fs/jfs/inode.c

@@ -151,7 +151,8 @@ void jfs_evict_inode(struct inode *inode)
 			if (test_cflag(COMMIT_Freewmap, inode))
 				jfs_free_zero_link(inode);
 
-			diFree(inode);
+			if (JFS_SBI(inode->i_sb)->ipimap)
+				diFree(inode);
 
 			/*
 			 * Free the inode from the quota allocation.

fs/jfs/jfs_dinode.h

@@ -101,7 +101,6 @@ struct dinode {
 					u8 unused[16];	/* 16: */
 					dxd_t _dxd;	/* 16: */
 					union {
-						__le32 _rdev;	/* 4: */
 						/*
 						 * The fast symlink area
 						 * is expected to overflow
@@ -109,9 +108,15 @@ struct dinode {
 						 * needed (which will clear
 						 * INLINEEA).
 						 */
-						u8 _fastsymlink[128];
-					} _u;
-					u8 _inlineea[128];
+						struct {
+							union {
+								__le32 _rdev;	/* 4: */
+								u8 _fastsymlink[128];
+							} _u;
+							u8 _inlineea[128];
+						};
+						u8 _inline_all[256];
+					};
 				} _special;
 			} _u2;
 		} _file;
@@ -122,6 +127,7 @@ struct dinode {
 #define di_rdev		u._file._u2._special._u._rdev
 #define di_fastsymlink	u._file._u2._special._u._fastsymlink
 #define di_inlineea	u._file._u2._special._inlineea
+#define di_inline_all	u._file._u2._special._inline_all
 	} u;
 };
 

fs/jfs/jfs_dmap.c

@@ -3660,7 +3660,7 @@ void dbFinalizeBmap(struct inode *ipbmap)
 	 * (the leftmost ag with average free space in it);
 	 */
 //agpref:
-	/* get the number of active ags and inacitve ags */
+	/* get the number of active ags and inactive ags */
 	actags = bmp->db_maxag + 1;
 	inactags = bmp->db_numag - actags;
 	ag_rem = bmp->db_mapsize & (bmp->db_agsize - 1);	/* ??? */

fs/jfs/jfs_imap.c

@@ -103,10 +103,8 @@ int diMount(struct inode *ipimap)
 	 */
 	/* allocate the in-memory inode map control structure. */
 	imap = kmalloc(sizeof(struct inomap), GFP_KERNEL);
-	if (imap == NULL) {
-		jfs_err("diMount: kmalloc returned NULL!");
+	if (imap == NULL)
 		return -ENOMEM;
-	}
 
 	/* read the on-disk inode map control structure. */
 
@@ -763,7 +761,7 @@ int diWrite(tid_t tid, struct inode *ip)
 		lv = & dilinelock->lv[dilinelock->index];
 		lv->offset = (dioffset + 2 * 128) >> L2INODESLOTSIZE;
 		lv->length = 2;
-		memcpy(&dp->di_fastsymlink, jfs_ip->i_inline, IDATASIZE);
+		memcpy(&dp->di_inline_all, jfs_ip->i_inline_all, IDATASIZE);
 		dilinelock->index++;
 	}
 	/*
@@ -3084,7 +3082,7 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip)
 	}
 
 	if (S_ISDIR(ip->i_mode)) {
-		memcpy(&jfs_ip->i_dirtable, &dip->di_dirtable, 384);
+		memcpy(&jfs_ip->u.dir, &dip->u._dir, 384);
 	} else if (S_ISREG(ip->i_mode) || S_ISLNK(ip->i_mode)) {
 		memcpy(&jfs_ip->i_xtroot, &dip->di_xtroot, 288);
 	} else

fs/jfs/jfs_incore.h

@@ -77,11 +77,18 @@ struct jfs_inode_info {
 			unchar _unused[16];	/* 16: */
 			dxd_t _dxd;		/* 16: */
 			/* _inline may overflow into _inline_ea when needed */
-			unchar _inline[128];	/* 128: inline symlink */
 			/* _inline_ea may overlay the last part of
 			 * file._xtroot if maxentry = XTROOTINITSLOT
 			 */
-			unchar _inline_ea[128];	/* 128: inline extended attr */
+			union {
+				struct {
+					/* 128: inline symlink */
+					unchar _inline[128];
+					/* 128: inline extended attr */
+					unchar _inline_ea[128];
+				};
+				unchar _inline_all[256];
+			};
 		} link;
 	} u;
 #ifdef CONFIG_QUOTA
@@ -96,6 +103,7 @@ struct jfs_inode_info {
 #define i_dtroot u.dir._dtroot
 #define i_inline u.link._inline
 #define i_inline_ea u.link._inline_ea
+#define i_inline_all u.link._inline_all
 
 #define IREAD_LOCK(ip, subclass) \
 	down_read_nested(&JFS_IP(ip)->rdwrlock, subclass)

fs/jfs/jfs_logmgr.c

@@ -1324,6 +1324,7 @@ int lmLogInit(struct jfs_log * log)
 		} else {
 			if (!uuid_equal(&logsuper->uuid, &log->uuid)) {
 				jfs_warn("wrong uuid on JFS log device");
+				rc = -EINVAL;
 				goto errout20;
 			}
 			log->size = le32_to_cpu(logsuper->size);

fs/jfs/jfs_txnmgr.c

@@ -105,7 +105,7 @@ static DEFINE_SPINLOCK(jfsTxnLock);
 #define TXN_LOCK()		spin_lock(&jfsTxnLock)
 #define TXN_UNLOCK()		spin_unlock(&jfsTxnLock)
 
-#define LAZY_LOCK_INIT()	spin_lock_init(&TxAnchor.LazyLock);
+#define LAZY_LOCK_INIT()	spin_lock_init(&TxAnchor.LazyLock)
 #define LAZY_LOCK(flags)	spin_lock_irqsave(&TxAnchor.LazyLock, flags)
 #define LAZY_UNLOCK(flags) spin_unlock_irqrestore(&TxAnchor.LazyLock, flags)
 

fs/jfs/super.c

@@ -939,7 +939,8 @@ static int __init init_jfs_fs(void)
 	jfs_inode_cachep =
 	    kmem_cache_create_usercopy("jfs_ip", sizeof(struct jfs_inode_info),
 			0, SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_ACCOUNT,
-			offsetof(struct jfs_inode_info, i_inline), IDATASIZE,
+			offsetof(struct jfs_inode_info, i_inline_all),
+			sizeof_field(struct jfs_inode_info, i_inline_all),
 			init_once);
 	if (jfs_inode_cachep == NULL)
 		return -ENOMEM;