Unicode/UTF-8 support for XFS

2,965 lines not on this page · raw message

new file mode 100644
index 0000000..82f86c4
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2014 SGI.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef UTF8NORM_H
+#define UTF8NORM_H
+
+#include <linux/types.h>
+#include <linux/export.h>
+#include <linux/string.h>
+#include <linux/module.h>
+
+/* An opaque type used to determine the normalization in use. */
+typedef const struct utf8data *utf8data_t;
+
+/* Encoding a unicode version number as a single unsigned int. */
+#define UNICODE_MAJ_SHIFT		(16)
+#define UNICODE_MIN_SHIFT		(8)
+
+#define UNICODE_AGE(MAJ,MIN,REV)			\
+	(((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) |	\
+	 ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) |	\
+	 ((unsigned int)(REV)))
+
+/* Highest unicode version supported by the data tables. */
+extern int utf8version_is_supported(unsigned int);
+
+/*
+ * Look for the correct utf8data_t for a unicode version.
+ * Returns NULL if the version requested is too new.
+ *
+ * Two normalization forms are supported: nfkdi and nfkdicf.
+ *
+ * nfkdi:
+ *  - Apply unicode normalization form NFKD.
+ *  - Remove any Default_Ignorable_Code_Point.
+ *
+ * nfkdicf:
+ *  - Apply unicode normalization form NFKD.
+ *  - Remove any Default_Ignorable_Code_Point.
+ *  - Apply a full casefold (C + F).
+ */
+extern utf8data_t utf8nfkdi(unsigned int);
+extern utf8data_t utf8nfkdicf(unsigned int);
+
+/*
+ * Determine the maximum age of any unicode character in the string.
+ * Returns 0 if only unassigned code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern int utf8agemax(utf8data_t, const char *);
+extern int utf8nagemax(utf8data_t, const char *, size_t);
+
+/*
+ * Determine the minimum age of any unicode character in the string.
+ * Returns 0 if any unassigned code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern int utf8agemin(utf8data_t, const char *);
+extern int utf8nagemin(utf8data_t, const char *, size_t);
+
+/*
+ * Determine the length of the normalized from of the string,
+ * excluding any terminating NULL byte.
+ * Returns 0 if only ignorable code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern ssize_t utf8len(utf8data_t, const char *);
+extern ssize_t utf8nlen(utf8data_t, const char *, size_t);
+
+/*
+ * Cursor structure used by the normalizer.
+ */
+struct utf8cursor {
+	utf8data_t	data;
+	const char	*s;
+	const char	*p;
+	const char	*ss;
+	const char	*sp;
+	unsigned int	len;
+	unsigned int	slen;
+	short int	ccc;
+	short int	nccc;
+};
+
+/*
+ * Initialize a utf8cursor to normalize a string.
+ * Returns 0 on success.
+ * Returns -1 on failure.
+ */
+extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *);
+extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t);
+
+/*
+ * Get the next byte in the normalization.
+ * Returns a value > 0 && < 256 on success.
+ * Returns 0 when the end of the normalization is reached.
+ * Returns -1 if the string being normalized is not valid UTF-8.
+ */
+extern int utf8byte(struct utf8cursor *);
+
+#endif /* UTF8NORM_H */

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index 82f86c4..a6d8ce4 100644
@@ -27,6 +27,9 @@
 /* An opaque type used to determine the normalization in use. */
 typedef const struct utf8data *utf8data_t;
 
+/* Needed in struct utf8cursor below. */
+#define UTF8HANGULLEAF	(12)
+
 /* Encoding a unicode version number as a single unsigned int. */
 #define UNICODE_MAJ_SHIFT		(16)
 #define UNICODE_MIN_SHIFT		(8)

@@ -95,6 +98,7 @@ struct utf8cursor {
 	unsigned int	slen;
 	short int	ccc;
 	short int	nccc;
+	unsigned char	hangul[UTF8HANGULLEAF];
 };
 
 /*

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index 9628cec..990bf0c 100644
@@ -725,28 +725,21 @@ xfs_dir2_block_lookup_int(
 		dep = (xfs_dir2_data_entry_t *)
 			((char *)hdr + xfs_dir2_dataptr_to_off(args->geo, addr));
 		/*
-		 * Compare name and if it's an exact match, return the index
-		 * and buffer. If it's the first case-insensitive match, store
-		 * the index and buffer and continue looking for an exact match.
+		 * Compare name and if it's a match, return the
+		 * index and buffer.
 		 */
 		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
-		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+		if (cmp != XFS_CMP_DIFFERENT) {
 			args->cmpresult = cmp;
 			*bpp = bp;
 			*entno = mid;
-			if (cmp == XFS_CMP_EXACT)
-				return 0;
+			return 0;
 		}
 	} while (++mid < be32_to_cpu(btp->count) &&
 			be32_to_cpu(blp[mid].hashval) == hash);
 
 	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
-	/*
-	 * Here, we can only be doing a lookup (not a rename or replace).
-	 * If a case-insensitive match was found earlier, return success.
-	 */
-	if (args->cmpresult == XFS_CMP_CASE)
-		return 0;
+	ASSERT(args->cmpresult == XFS_CMP_DIFFERENT);
 	/*
 	 * No match, release the buffer and return ENOENT.
 	 */

index a19174e..3d572ee 100644
@@ -1226,7 +1226,6 @@ xfs_dir2_leaf_lookup_int(
 	xfs_mount_t		*mp;		/* filesystem mount point */
 	xfs_dir2_db_t		newdb;		/* new data block number */
 	xfs_trans_t		*tp;		/* transaction pointer */
-	xfs_dir2_db_t		cidb = -1;	/* case match data block no. */
 	enum xfs_dacmp		cmp;		/* name compare result */
 	struct xfs_dir2_leaf_entry *ents;
 	struct xfs_dir3_icleaf_hdr leafhdr;

@@ -1290,46 +1289,22 @@ xfs_dir2_leaf_lookup_int(
 						be32_to_cpu(lep->address)));
 		/*
 		 * Compare name and if it's an exact match, return the index
-		 * and buffer. If it's the first case-insensitive match, store
-		 * the index and buffer and continue looking for an exact match.
+		 * and buffer
 		 */
 		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
-		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+		if (cmp != XFS_CMP_DIFFERENT) {
 			args->cmpresult = cmp;
 			*indexp = index;
-			/* case exact match: return the current buffer. */
-			if (cmp == XFS_CMP_EXACT) {
-				*dbpp = dbp;
-				return 0;
-			}
-			cidb = curdb;
+			*dbpp = dbp;
+			return 0;
 		}
 	}
 	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
-	/*
-	 * Here, we can only be doing a lookup (not a rename or remove).
-	 * If a case-insensitive match was found earlier, re-read the
-	 * appropriate data block if required and return it.
-	 */
-	if (args->cmpresult == XFS_CMP_CASE) {
-		ASSERT(cidb != -1);
-		if (cidb != curdb) {
-			xfs_trans_brelse(tp, dbp);
-			error = xfs_dir3_data_read(tp, dp,
-					   xfs_dir2_db_to_da(args->geo, cidb),
-					   -1, &dbp);
-			if (error) {
-				xfs_trans_brelse(tp, lbp);
-				return error;
-			}
-		}
-		*dbpp = dbp;
-		return 0;
-	}
+	ASSERT(args->cmpresult == XFS_CMP_DIFFERENT);
+
 	/*
 	 * No match found, return -ENOENT.
 	 */
-	ASSERT(cidb == -1);
 	if (dbp)
 		xfs_trans_brelse(tp, dbp);
 	xfs_trans_brelse(tp, lbp);

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index 5079e05..e69fdb7 100644
@@ -757,19 +757,19 @@ xfs_dir2_sf_lookup(
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
 	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) {
 		/*
-		 * Compare name and if it's an exact match, return the inode
-		 * number. If it's the first case-insensitive match, store the
-		 * inode number and continue looking for an exact match.
+		 * Compare name and if it's a match, return the inode
+		 * number.
 		 */
 		cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name,
 								sfep->namelen);
-		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+		if (cmp != XFS_CMP_DIFFERENT) {
 			args->cmpresult = cmp;
 			args->inumber = dp->d_ops->sf_get_ino(sfp, sfep);
 			args->filetype = dp->d_ops->sf_get_ftype(sfep);
 			if (cmp == XFS_CMP_EXACT)
 				return -EEXIST;
 			ci_sfep = sfep;
+			break;
 		}
 	}
 	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);

index 6e153e3..9ebcc23 100644
@@ -52,7 +52,7 @@ struct xfs_da_geometry {
 enum xfs_dacmp {
 	XFS_CMP_DIFFERENT,	/* names are completely different */
 	XFS_CMP_EXACT,		/* names are exactly the same */
-	XFS_CMP_CASE		/* names are same but differ in case */
+	XFS_CMP_MATCH		/* names are same but differ in encoding */
 };
 
 /*

index 6cef221..32e769b 100644
@@ -74,7 +74,7 @@ xfs_ascii_ci_compname(
 			continue;
 		if (tolower(args->name[i]) != tolower(name[i]))
 			return XFS_CMP_DIFFERENT;
-		result = XFS_CMP_CASE;
+		result = XFS_CMP_MATCH;
 	}
 
 	return result;

@@ -315,8 +315,11 @@ xfs_dir_cilookup_result(
 {
 	if (args->cmpresult == XFS_CMP_DIFFERENT)
 		return -ENOENT;
-	if (args->cmpresult != XFS_CMP_CASE ||
-					!(args->op_flags & XFS_DA_OP_CILOOKUP))
+	if (args->cmpresult == XFS_CMP_EXACT)
+		return -EEXIST;
+	ASSERT(args->cmpresult == XFS_CMP_MATCH);
+	/* Only dup the found name if XFS_DA_OP_CILOOKUP is set. */
+	if (!(args->op_flags & XFS_DA_OP_CILOOKUP))
 		return -EEXIST;
 
 	args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL);

index 1778c40..9d46e8d 100644
@@ -2023,7 +2023,7 @@ xfs_dir2_node_lookup(
 	error = xfs_da3_node_lookup_int(state, &rval);
 	if (error)
 		rval = error;
-	else if (rval == -ENOENT && args->cmpresult == XFS_CMP_CASE) {
+	else if (rval == -ENOENT && args->cmpresult == XFS_CMP_MATCH) {
 		/* If a CI match, dup the actual name and return -EEXIST */
 		xfs_dir2_data_entry_t	*dep;
 

index 2c42ae2..07a3acf 100644
@@ -1990,8 +1990,17 @@ xfs_default_hashname(
 	return xfs_da_hashname(name->name, name->len);
 }
 
+STATIC int
+xfs_da_normhash(
+	struct xfs_da_args *args)
+{
+	args->hashval = xfs_da_hashname(args->name, args->namelen);
+	return 0;
+}
+
 const struct xfs_nameops xfs_default_nameops = {
 	.hashname	= xfs_default_hashname,
+	.normhash	= xfs_da_normhash,
 	.compname	= xfs_da_compname
 };
 

index 9ebcc23..6cdafee 100644
@@ -61,7 +61,9 @@ enum xfs_dacmp {
 typedef struct xfs_da_args {
 	struct xfs_da_geometry *geo;	/* da block geometry */
 	const __uint8_t	*name;		/* string (maybe not NULL terminated) */
+	const __uint8_t	*norm;		/* normalized name (may be NULL) */
 	int		namelen;	/* length of string (maybe no NULL) */
+	int		normlen;	/* length of normalized name */
 	__uint8_t	filetype;	/* filetype of inode for directories */
 	__uint8_t	*value;		/* set of bytes (maybe contain NULLs) */
 	int		valuelen;	/* length of value */

@@ -150,6 +152,7 @@ typedef struct xfs_da_state {
  */
 struct xfs_nameops {
 	xfs_dahash_t	(*hashname)(struct xfs_name *);
+	int		(*normhash)(struct xfs_da_args *);
 	enum xfs_dacmp	(*compname)(struct xfs_da_args *,
 					const unsigned char *, int);
 };

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index 07a3acf..ec6cc98 100644
@@ -1973,6 +1973,15 @@ xfs_da_hashname(const __uint8_t *name, int namelen)
 	}
 }
 
+xfs_dahash_t
+xfs_da_hashname_op(
+	const __uint8_t		*name,
+	int 			namelen,
+	unsigned int 		unused)
+{
+	return xfs_da_hashname(name, namelen);
+}
+
 enum xfs_dacmp
 xfs_da_compname(
 	struct xfs_da_args *args,

@@ -1983,13 +1992,6 @@ xfs_da_compname(
 					XFS_CMP_EXACT : XFS_CMP_DIFFERENT;
 }
 
-static xfs_dahash_t
-xfs_default_hashname(
-	struct xfs_name	*name)
-{
-	return xfs_da_hashname(name->name, name->len);
-}
-
 STATIC int
 xfs_da_normhash(
 	struct xfs_da_args *args)

@@ -1999,7 +2001,7 @@ xfs_da_normhash(
 }
 
 const struct xfs_nameops xfs_default_nameops = {
-	.hashname	= xfs_default_hashname,
+	.hashname	= xfs_da_hashname_op,
 	.normhash	= xfs_da_normhash,
 	.compname	= xfs_da_compname
 };

index 6cdafee..ce6888a 100644
@@ -151,7 +151,8 @@ typedef struct xfs_da_state {
  * Name ops for directory and/or attr name operations
  */
 struct xfs_nameops {
-	xfs_dahash_t	(*hashname)(struct xfs_name *);
+	xfs_dahash_t	(*hashname)(const unsigned char *, int,
+					unsigned int);
 	int		(*normhash)(struct xfs_da_args *);
 	enum xfs_dacmp	(*compname)(struct xfs_da_args *,
 					const unsigned char *, int);

index 55733a6..4eb0973 100644
@@ -45,13 +45,15 @@ struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR };
  */
 STATIC xfs_dahash_t
 xfs_ascii_ci_hashname(
-	struct xfs_name	*name)
+	const unsigned char *name,
+	int len,
+	unsigned int unused)
 {
 	xfs_dahash_t	hash;
 	int		i;
 
-	for (i = 0, hash = 0; i < name->len; i++)
-		hash = tolower(name->name[i]) ^ rol32(hash, 7);
+	for (i = 0, hash = 0; i < len; i++)
+		hash = tolower(name[i]) ^ rol32(hash, 7);
 
 	return hash;
 }

index 990bf0c..12ebdd8 100644
@@ -1231,7 +1231,9 @@ xfs_dir2_sf_to_block(
 		name.name = sfep->name;
 		name.len = sfep->namelen;
 		blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops->
-							hashname(&name));
+					hashname(sfep->name,
+						 sfep->namelen,
+						 0 /* version for later */));
 		blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(
 						 (char *)dep - (char *)hdr));
 		offset = (int)((char *)(tagp + 1) - (char *)hdr);

index fdd803f..25b0f7b 100644
@@ -179,7 +179,9 @@ __xfs_dir3_data_check(
 						((char *)dep - (char *)hdr));
 			name.name = dep->name;
 			name.len = dep->namelen;
-			hash = mp->m_dirnameops->hashname(&name);
+			hash = mp->m_dirnameops->hashname(dep->name,
+					dep->namelen,
+					0 /* version for later */);
 			for (i = 0; i < be32_to_cpu(btp->count); i++) {
 				if (be32_to_cpu(lep[i].address) == addr &&
 				    be32_to_cpu(lep[i].hashval) == hash)

index 2e73970..525eacb 100644
@@ -70,6 +70,7 @@ struct xfs_trans;
 #define XFS_SB_VERSION2_RESERVED4BIT	0x00000004
 #define XFS_SB_VERSION2_ATTR2BIT	0x00000008	/* Inline attr rework */
 #define XFS_SB_VERSION2_PARENTBIT	0x00000010	/* parent pointers */
+#define XFS_SB_VERSION2_UTF8BIT		0x00000020      /* utf8 names */
 #define XFS_SB_VERSION2_PROJID32BIT	0x00000080	/* 32 bit project id */
 #define XFS_SB_VERSION2_CRCBIT		0x00000100	/* metadata CRCs */
 #define XFS_SB_VERSION2_FTYPE		0x00000200	/* inode type in dir */

@@ -77,6 +78,7 @@ struct xfs_trans;
 #define	XFS_SB_VERSION2_OKBITS		\
 	(XFS_SB_VERSION2_LAZYSBCOUNTBIT	| \
 	 XFS_SB_VERSION2_ATTR2BIT	| \
+	 XFS_SB_VERSION2_UTF8BIT	| \
 	 XFS_SB_VERSION2_PROJID32BIT	| \
 	 XFS_SB_VERSION2_FTYPE)
 

@@ -509,8 +511,10 @@ xfs_sb_has_ro_compat_feature(
 }
 
 #define XFS_SB_FEAT_INCOMPAT_FTYPE	(1 << 0)	/* filetype in dirent */
+#define XFS_SB_FEAT_INCOMPAT_UTF8	(1 << 1)	/* utf-8 name support */
 #define XFS_SB_FEAT_INCOMPAT_ALL \
-		(XFS_SB_FEAT_INCOMPAT_FTYPE)
+		(XFS_SB_FEAT_INCOMPAT_FTYPE | \
+		 XFS_SB_FEAT_INCOMPAT_UTF8)
 
 #define XFS_SB_FEAT_INCOMPAT_UNKNOWN	~XFS_SB_FEAT_INCOMPAT_ALL
 static inline bool

@@ -558,6 +562,24 @@ static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp)
 		(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT);
 }
 
+static inline int xfs_sb_version_hasutf8(xfs_sb_t *sbp)
+{
+	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
+		xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_UTF8)) ||
+		(xfs_sb_version_hasmorebits(sbp) &&
+		(sbp->sb_features2 & XFS_SB_VERSION2_UTF8BIT));
+}
+
+/*
+ * Special case: there are a number of places where we need to test
+ * both the borgbit and the utf8bit, and take the same action if
+ * either of those is set.
+ */
+static inline int xfs_sb_version_hasci(xfs_sb_t *sbp)
+{
+	return xfs_sb_version_hasasciici(sbp) || xfs_sb_version_hasutf8(sbp);
+}
+
 /*
  * end of superblock version macros
  */

index 18dc721..e845d75 100644
@@ -239,6 +239,7 @@ typedef struct xfs_fsop_resblks {
 #define XFS_FSOP_GEOM_FLAGS_V5SB	0x8000	/* version 5 superblock */
 #define XFS_FSOP_GEOM_FLAGS_FTYPE	0x10000	/* inode directory types */
 #define XFS_FSOP_GEOM_FLAGS_FINOBT	0x20000	/* free inode btree */
+#define XFS_FSOP_GEOM_FLAGS_UTF8	0x40000	/* utf8 filenames */
 
 /*
  * Minimum and maximum sizes need for growth checks.

index f91de1e..1a83eef 100644
@@ -103,7 +103,9 @@ xfs_fs_geometry(
 			(xfs_sb_version_hasftype(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_FTYPE : 0) |
 			(xfs_sb_version_hasfinobt(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_FINOBT : 0);
+				XFS_FSOP_GEOM_FLAGS_FINOBT : 0) |
+			(xfs_sb_version_hasutf8(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_UTF8 : 0);
 		geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
 				mp->m_sb.sb_logsectsize : BBSIZE;
 		geo->rtsectsize = mp->m_sb.sb_blocksize;

index 7212949..cea3d64 100644
@@ -335,9 +335,9 @@ xfs_vn_unlink(
 	/*
 	 * With unlink, the VFS makes the dentry "negative": no inode,
 	 * but still hashed. This is incompatible with case-insensitive
-	 * mode, so invalidate (unhash) the dentry in CI-mode.
+	 * or utf8 mode, so invalidate (unhash) the dentry in CI-mode.
 	 */
-	if (xfs_sb_version_hasasciici(&XFS_M(dir->i_sb)->m_sb))
+	if (xfs_sb_version_hasci(&XFS_M(dir->i_sb)->m_sb))
 		d_invalidate(dentry);
 	return 0;
 }

index 4eb0973..2c89211 100644
@@ -157,10 +157,30 @@ xfs_da_mount(
 				(uint)sizeof(xfs_da_node_entry_t);
 	dageo->magicpct = (dageo->blksize * 37) / 100;
 
-	if (xfs_sb_version_hasasciici(&mp->m_sb))
-		mp->m_dirnameops = &xfs_ascii_ci_nameops;
-	else
-		mp->m_dirnameops = &xfs_default_nameops;
+	if (xfs_sb_version_hasutf8(&mp->m_sb)) {
+#ifdef CONFIG_XFS_UTF8
+		if (!xfs_utf8_version_ok(mp))
+			return -ENOSYS;
+
+		/* XXX these are replaced in the next patch need
+		   to do some kind of reordering here */
+		if (xfs_sb_version_hasasciici(&mp->m_sb))
+			mp->m_dirnameops = &xfs_ascii_ci_nameops;
+		else
+			mp->m_dirnameops = &xfs_default_nameops;
+#else
+		xfs_warn(mp,
+"Recompile XFS with CONFIG_XFS_UTF8 to mount this filesystem");
+		kmem_free(mp->m_dir_geo);
+		kmem_free(mp->m_attr_geo);
+		return -ENOSYS;
+#endif
+	} else {
+		if (xfs_sb_version_hasasciici(&mp->m_sb))
+			mp->m_dirnameops = &xfs_ascii_ci_nameops;
+		else
+			mp->m_dirnameops = &xfs_default_nameops;
+	}
 
 	return 0;
 }

index ad525a5..1ee7d33 100644
@@ -99,7 +99,7 @@ static const struct {
 	{ offsetof(xfs_sb_t, sb_features_incompat),	0 },
 	{ offsetof(xfs_sb_t, sb_features_log_incompat),	0 },
 	{ offsetof(xfs_sb_t, sb_crc),		0 },
-	{ offsetof(xfs_sb_t, sb_pad),		0 },
+	{ offsetof(xfs_sb_t, sb_utf8version),	0 },
 	{ offsetof(xfs_sb_t, sb_pquotino),	0 },
 	{ offsetof(xfs_sb_t, sb_lsn),		0 },
 	{ sizeof(xfs_sb_t),			0 }

@@ -443,7 +443,7 @@ __xfs_sb_from_disk(
 	to->sb_features_incompat = be32_to_cpu(from->sb_features_incompat);
 	to->sb_features_log_incompat =
 				be32_to_cpu(from->sb_features_log_incompat);
-	to->sb_pad = 0;
+	to->sb_utf8version = be32_to_cpu(from->sb_utf8version);
 	to->sb_pquotino = be64_to_cpu(from->sb_pquotino);
 	to->sb_lsn = be64_to_cpu(from->sb_lsn);
 	/* Convert on-disk flags to in-memory flags? */

index 525eacb..dc7b6c6 100644
@@ -159,7 +159,7 @@ typedef struct xfs_sb {
 	__uint32_t	sb_features_log_incompat;
 
 	__uint32_t	sb_crc;		/* superblock crc */
-	__uint32_t	sb_pad;
+	__uint32_t	sb_utf8version;	/* unicode version */
 
 	xfs_ino_t	sb_pquotino;	/* project quota inode */
 	xfs_lsn_t	sb_lsn;		/* last write sequence */

@@ -245,7 +245,7 @@ typedef struct xfs_dsb {
 	__be32		sb_features_log_incompat;
 
 	__le32		sb_crc;		/* superblock crc */
-	__be32		sb_pad;
+	__be32		sb_utf8version;	/* version of unicode */
 
 	__be64		sb_pquotino;	/* project quota inode */
 	__be64		sb_lsn;		/* last write sequence */

@@ -271,7 +271,7 @@ typedef enum {
 	XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
 	XFS_SBS_FEATURES2, XFS_SBS_BAD_FEATURES2, XFS_SBS_FEATURES_COMPAT,
 	XFS_SBS_FEATURES_RO_COMPAT, XFS_SBS_FEATURES_INCOMPAT,
-	XFS_SBS_FEATURES_LOG_INCOMPAT, XFS_SBS_CRC, XFS_SBS_PAD,
+	XFS_SBS_FEATURES_LOG_INCOMPAT, XFS_SBS_CRC, XFS_SBS_UTF8VERSION,
 	XFS_SBS_PQUOTINO, XFS_SBS_LSN,
 	XFS_SBS_FIELDCOUNT
 } xfs_sb_field_t;

@@ -303,6 +303,7 @@ typedef enum {
 #define XFS_SB_FEATURES_INCOMPAT XFS_SB_MVAL(FEATURES_INCOMPAT)
 #define XFS_SB_FEATURES_LOG_INCOMPAT XFS_SB_MVAL(FEATURES_LOG_INCOMPAT)
 #define XFS_SB_CRC		XFS_SB_MVAL(CRC)
+#define XFS_SB_UTF8VERSION	XFS_SB_MVAL(UTF8VERSION)
 #define XFS_SB_PQUOTINO		XFS_SB_MVAL(PQUOTINO)
 #define	XFS_SB_NUM_BITS		((int)XFS_SBS_FIELDCOUNT)
 #define	XFS_SB_ALL_BITS		((1LL << XFS_SB_NUM_BITS) - 1)

@@ -313,7 +314,8 @@ typedef enum {
 	 XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \
 	 XFS_SB_BAD_FEATURES2 | XFS_SB_FEATURES_COMPAT | \
 	 XFS_SB_FEATURES_RO_COMPAT | XFS_SB_FEATURES_INCOMPAT | \
-	 XFS_SB_FEATURES_LOG_INCOMPAT | XFS_SB_PQUOTINO)
+	 XFS_SB_FEATURES_LOG_INCOMPAT | XFS_SB_UTF8VERSION | \
+	 XFS_SB_PQUOTINO)
 
 
 /*

70 lines not on this page · raw message

new file mode 100644
index 0000000..8a700de
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2014 SGI.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef XFS_UTF8_H
+#define XFS_UTF8_H
+
+extern int xfs_utf8_version_ok(struct xfs_mount *);
+
+#endif /* XFS_UTF8_H */

index 2c89211..9cfbd6b 100644
@@ -165,9 +165,9 @@ xfs_da_mount(
 		/* XXX these are replaced in the next patch need
 		   to do some kind of reordering here */
 		if (xfs_sb_version_hasasciici(&mp->m_sb))
-			mp->m_dirnameops = &xfs_ascii_ci_nameops;
+			mp->m_dirnameops = &xfs_utf8_ci_nameops;
 		else
-			mp->m_dirnameops = &xfs_default_nameops;
+			mp->m_dirnameops = &xfs_utf8_nameops;
 #else
 		xfs_warn(mp,
 "Recompile XFS with CONFIG_XFS_UTF8 to mount this filesystem");

211 lines not on this page · raw message

index 8a700de..404db54 100644
@@ -21,4 +21,7 @@
 
 extern int xfs_utf8_version_ok(struct xfs_mount *);
 
+extern struct xfs_nameops xfs_utf8_nameops;
+extern struct xfs_nameops xfs_utf8_ci_nameops;
+
 #endif /* XFS_UTF8_H */

index cea3d64..fbfb1bb 100644
@@ -1257,7 +1257,7 @@ xfs_setup_inode(
 		break;
 	case S_IFDIR:
 		lockdep_set_class(&ip->i_lock.mr_lock, &xfs_dir_ilock_class);
-		if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb))
+		if (xfs_sb_version_hasci(&XFS_M(inode->i_sb)->m_sb))
 			inode->i_op = &xfs_dir_ci_inode_operations;
 		else
 			inode->i_op = &xfs_dir_inode_operations;

index 353fb42..68e7ce3 100644
@@ -83,12 +83,14 @@ xfs_attr_args_init(
 	const unsigned char	*name,
 	int			flags)
 {
+	struct xfs_mount	*mp = dp->i_mount;
+	int			error;
 
 	if (!name)
 		return -EINVAL;
 
 	memset(args, 0, sizeof(*args));
-	args->geo = dp->i_mount->m_attr_geo;
+	args->geo = mp->m_attr_geo;
 	args->whichfork = XFS_ATTR_FORK;
 	args->dp = dp;
 	args->flags = flags;

@@ -97,7 +99,11 @@ xfs_attr_args_init(
 	if (args->namelen >= MAXNAMELEN)
 		return -EFAULT;		/* match IRIX behaviour */
 
-	args->hashval = xfs_da_hashname(args->name, args->namelen);
+	if (!xfs_sb_version_hasutf8(&mp->m_sb))
+		args->hashval = xfs_da_hashname(args->name, args->namelen);
+	else if ((error = mp->m_dirnameops->normhash(args)) != 0)
+		return error;
+
 	return 0;
 }
 

@@ -154,6 +160,9 @@ xfs_attr_get(
 		error = xfs_attr_node_get(&args);
 	xfs_iunlock(ip, lock_mode);
 
+	if (args.norm)
+		kmem_free(args.norm);
+
 	*valuelenp = args.valuelen;
 	return error == -EEXIST ? 0 : error;
 }

@@ -216,8 +225,11 @@ xfs_attr_set(
 		return -EIO;
 
 	error = xfs_attr_args_init(&args, dp, name, flags);
-	if (error)
+	if (error) {
+		if (args.norm)
+			kmem_free(args.norm);
 		return error;
+	}
 
 	args.value = value;
 	args.valuelen = valuelen;

@@ -227,8 +239,11 @@ xfs_attr_set(
 	args.total = xfs_attr_calc_size(&args, &local);
 
 	error = xfs_qm_dqattach(dp, 0);
-	if (error)
+	if (error) {
+		if (args.norm)
+			kmem_free(args.norm);
 		return error;
+	}
 
 	/*
 	 * If the inode doesn't have an attribute fork, add one.

@@ -239,8 +254,11 @@ xfs_attr_set(
 			XFS_ATTR_SF_ENTSIZE_BYNAME(args.namelen, valuelen);
 
 		error = xfs_bmap_add_attrfork(dp, sf_size, rsvd);
-		if (error)
+		if (error) {
+			if (args.norm)
+				kmem_free(args.norm);
 			return error;
+		}
 	}
 
 	/*

@@ -270,6 +288,8 @@ xfs_attr_set(
 	error = xfs_trans_reserve(args.trans, &tres, args.total, 0);
 	if (error) {
 		xfs_trans_cancel(args.trans, 0);
+		if (args.norm)
+			kmem_free(args.norm);
 		return error;
 	}
 	xfs_ilock(dp, XFS_ILOCK_EXCL);

@@ -280,6 +300,8 @@ xfs_attr_set(
 	if (error) {
 		xfs_iunlock(dp, XFS_ILOCK_EXCL);
 		xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES);
+		if (args.norm)
+			kmem_free(args.norm);
 		return error;
 	}
 

@@ -327,6 +349,8 @@ xfs_attr_set(
 						 XFS_TRANS_RELEASE_LOG_RES);
 			xfs_iunlock(dp, XFS_ILOCK_EXCL);
 
+			if (args.norm)
+				kmem_free(args.norm);
 			return error ? error : err2;
 		}
 

@@ -388,7 +412,8 @@ xfs_attr_set(
 	xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE);
 	error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES);
 	xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
+	if (args.norm)
+		kmem_free(args.norm);
 	return error;
 
 out:

@@ -397,6 +422,8 @@ out:
 			XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
 	}
 	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	if (args.norm)
+		kmem_free(args.norm);
 	return error;
 }
 

@@ -425,8 +452,11 @@ xfs_attr_remove(
 		return -ENOATTR;
 
 	error = xfs_attr_args_init(&args, dp, name, flags);
-	if (error)
+	if (error) {
+		if (args.norm)
+			kmem_free(args.norm);
 		return error;
+	}
 
 	args.firstblock = &firstblock;
 	args.flist = &flist;

@@ -439,8 +469,11 @@ xfs_attr_remove(
 	args.op_flags = XFS_DA_OP_OKNOENT;
 
 	error = xfs_qm_dqattach(dp, 0);
-	if (error)
+	if (error) {
+		if (args.norm)
+			kmem_free(args.norm);
 		return error;
+	}
 
 	/*
 	 * Start our first transaction of the day.

@@ -466,6 +499,8 @@ xfs_attr_remove(
 				  XFS_ATTRRM_SPACE_RES(mp), 0);
 	if (error) {
 		xfs_trans_cancel(args.trans, 0);
+		if (args.norm)
+			kmem_free(args.norm);
 		return error;
 	}
 

@@ -506,6 +541,8 @@ xfs_attr_remove(
 	xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE);
 	error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES);
 	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	if (args.norm)
+		kmem_free(args.norm);
 
 	return error;
 

@@ -515,6 +552,9 @@ out:
 			XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
 	}
 	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	if (args.norm)
+		kmem_free(args.norm);
+
 	return error;
 }
 

index b1f73db..c991a88 100644
@@ -661,6 +661,7 @@ int
 xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
 {
 	xfs_inode_t *dp;
+	struct xfs_mount *mp;
 	xfs_attr_shortform_t *sf;
 	xfs_attr_sf_entry_t *sfe;
 	xfs_da_args_t nargs;

@@ -673,6 +674,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
 	trace_xfs_attr_sf_to_leaf(args);
 
 	dp = args->dp;
+	mp = dp->i_mount;
 	ifp = dp->i_afp;
 	sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data;
 	size = be16_to_cpu(sf->hdr.totsize);

@@ -726,13 +728,18 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
 		nargs.namelen = sfe->namelen;
 		nargs.value = &sfe->nameval[nargs.namelen];
 		nargs.valuelen = sfe->valuelen;
-		nargs.hashval = xfs_da_hashname(sfe->nameval,
-						sfe->namelen);
 		nargs.flags = XFS_ATTR_NSP_ONDISK_TO_ARGS(sfe->flags);
+		if (!xfs_sb_version_hasutf8(&mp->m_sb))
+			nargs.hashval = xfs_da_hashname(sfe->nameval,
+							sfe->namelen);
+		else if ((error = mp->m_dirnameops->normhash(&nargs)) != 0)
+			goto out;
 		error = xfs_attr3_leaf_lookup_int(bp, &nargs); /* set a->index */
 		ASSERT(error == -ENOATTR);
 		error = xfs_attr3_leaf_add(bp, &nargs);
 		ASSERT(error != -ENOSPC);
+		if (nargs.norm)
+			kmem_free(nargs.norm);
 		if (error)
 			goto out;
 		sfe = XFS_ATTR_SF_NEXTENTRY(sfe);

index 1e75299..ede6228 100644
@@ -38,6 +38,7 @@
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
+#include "xfs_attr.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_utf8.h"

@@ -109,6 +110,9 @@ xfs_utf8_normhash(
 	unsigned int	sb_utf8version =
 		args->dp->i_mount->m_sb.sb_utf8version;
 
+	/* Don't normalize system attribute names. */
+	if (args->flags & (ATTR_ROOT|ATTR_SECURE))
+		goto blob;
 	nfkdi = utf8nfkdi(sb_utf8version);
 	/* Failure to normalize is treated as a blob. */
 	if ((normlen = utf8nlen(nfkdi, args->name, args->namelen)) < 0)

@@ -213,6 +217,9 @@ xfs_utf8_ci_normhash(
 	unsigned int	sb_utf8version =
 		args->dp->i_mount->m_sb.sb_utf8version;
 
+	/* Don't normalize system attribute names. */
+	if (args->flags & (ATTR_ROOT|ATTR_SECURE))
+		goto blob;
 	nfkdicf = utf8nfkdicf(sb_utf8version);
 	/* Failure to normalize is treated as a blob. */
 	if ((normlen = utf8nlen(nfkdicf, args->name, args->namelen)) < 0)

index 62db83a..034199d 100644
@@ -76,12 +76,14 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 	xfs_attr_shortform_t *sf;
 	xfs_attr_sf_entry_t *sfe;
 	xfs_inode_t *dp;
+	struct xfs_mount *mp;
 	int sbsize, nsbuf, count, i;
 	int error;
 
 	ASSERT(context != NULL);
 	dp = context->dp;
 	ASSERT(dp != NULL);
+	mp = dp->i_mount;
 	ASSERT(dp->i_afp != NULL);
 	sf = (xfs_attr_shortform_t *)dp->i_afp->if_u1.if_data;
 	ASSERT(sf != NULL);

@@ -154,7 +156,15 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 		}
 
 		sbp->entno = i;
-		sbp->hash = xfs_da_hashname(sfe->nameval, sfe->namelen);
+
+		/* ATTR_ROOT and ATTR_SECURE are never normalized. */
+		if (!xfs_sb_version_hasutf8(&mp->m_sb) ||
+		    (sfe->flags & (ATTR_ROOT|ATTR_SECURE))) {
+			sbp->hash = xfs_da_hashname(sfe->nameval, sfe->namelen);
+		} else {
+			sbp->hash = mp->m_dirnameops->hashname(sfe->nameval,
+				       sfe->namelen, mp->m_sb.sb_utf8version);
+		}
 		sbp->name = sfe->nameval;
 		sbp->namelen = sfe->namelen;
 		/* These are bytes, and both on-disk, don't endian-flip */

index 9cfbd6b..844044b 100644
@@ -35,6 +35,9 @@
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_dinode.h"
+#ifdef CONFIG_XFS_UTF8
+#include "xfs_utf8.h"
+#endif
 
 struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR };
 

@@ -159,6 +162,12 @@ xfs_da_mount(
 
 	if (xfs_sb_version_hasutf8(&mp->m_sb)) {
 #ifdef CONFIG_XFS_UTF8
+		if (xfs_init_utf8_module(mp)) {
+			kmem_free(mp->m_dir_geo);
+			kmem_free(mp->m_attr_geo);
+			return -ENOSYS;
+		}
+
 		if (!xfs_utf8_version_ok(mp))
 			return -ENOSYS;
 

106 lines not on this page · raw message

index 404db54..b79ce05 100644
@@ -24,4 +24,7 @@ extern int xfs_utf8_version_ok(struct xfs_mount *);
 extern struct xfs_nameops xfs_utf8_nameops;
 extern struct xfs_nameops xfs_utf8_ci_nameops;
 
+extern int xfs_init_utf8_module(struct xfs_mount *);
+extern void xfs_put_utf8_module(void);
+
 #endif /* XFS_UTF8_H */

index b194652..60a3ebc 100644
@@ -47,6 +47,9 @@
 #include "xfs_dinode.h"
 #include "xfs_filestream.h"
 #include "xfs_quota.h"
+#ifdef CONFIG_XFS_UTF8
+#include "xfs_utf8.h"
+#endif
 
 #include <linux/namei.h>
 #include <linux/init.h>

@@ -1809,6 +1812,9 @@ exit_xfs_fs(void)
 	xfs_mru_cache_uninit();
 	xfs_destroy_workqueues();
 	xfs_destroy_zones();
+#ifdef CONFIG_XFS_UTF8
+	xfs_put_utf8_module();
+#endif
 }
 
 module_init(init_xfs_fs);

index e845d75..fd45cbe 100644
@@ -180,9 +180,9 @@ typedef struct xfs_fsop_geom_v1 {
 } xfs_fsop_geom_v1_t;
 
 /*
- * Output for XFS_IOC_FSGEOMETRY
+ * Output for XFS_IOC_FSGEOMETRY_V2
  */
-typedef struct xfs_fsop_geom {
+typedef struct xfs_fsop_geom_v2 {
 	__u32		blocksize;	/* filesystem (data) block size */
 	__u32		rtextsize;	/* realtime extent size		*/
 	__u32		agblocks;	/* fsblocks in an AG		*/

@@ -204,7 +204,7 @@ typedef struct xfs_fsop_geom {
 	__u32		rtsectsize;	/* realtime sector size, bytes	*/
 	__u32		dirblocksize;	/* directory block size, bytes	*/
 	__u32		logsunit;	/* log stripe unit, bytes */
-} xfs_fsop_geom_t;
+} xfs_fsop_geom_v2_t;
 
 /* Output for XFS_FS_COUNTS */
 typedef struct xfs_fsop_counts {

@@ -555,7 +555,7 @@ typedef struct xfs_swapext
 #define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
 #define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
 #define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
-#define XFS_IOC_FSGEOMETRY	     _IOR ('X', 124, struct xfs_fsop_geom)
+#define XFS_IOC_FSGEOMETRY_V2	     _IOR ('X', 124, struct xfs_fsop_geom_v2)
 #define XFS_IOC_GOINGDOWN	     _IOR ('X', 125, __uint32_t)
 /*	XFS_IOC_GETFSUUID ---------- deprecated 140	 */
 

index 1a83eef..b69468e 100644
@@ -50,7 +50,7 @@
 int
 xfs_fs_geometry(
 	xfs_mount_t		*mp,
-	xfs_fsop_geom_t		*geo,
+	xfs_fsop_geom_v2_t	*geo,
 	int			new_version)
 {
 

index 1b6a98b..26e7343 100644
@@ -18,7 +18,8 @@
 #ifndef __XFS_FSOPS_H__
 #define	__XFS_FSOPS_H__
 
-extern int xfs_fs_geometry(xfs_mount_t *mp, xfs_fsop_geom_t *geo, int nversion);
+extern int xfs_fs_geometry(xfs_mount_t *mp, xfs_fsop_geom_v2_t *geo,
+		int nversion);
 extern int xfs_growfs_data(xfs_mount_t *mp, xfs_growfs_data_t *in);
 extern int xfs_growfs_log(xfs_mount_t *mp, xfs_growfs_log_t *in);
 extern int xfs_fs_counts(xfs_mount_t *mp, xfs_fsop_counts_t *cnt);

index 3799695..4393405 100644
@@ -823,7 +823,7 @@ xfs_ioc_fsgeometry_v1(
 	xfs_mount_t		*mp,
 	void			__user *arg)
 {
-	xfs_fsop_geom_t         fsgeo;
+	xfs_fsop_geom_v2_t	fsgeo;
 	int			error;
 
 	error = xfs_fs_geometry(mp, &fsgeo, 3);

@@ -841,18 +841,18 @@ xfs_ioc_fsgeometry_v1(
 }
 
 STATIC int
-xfs_ioc_fsgeometry(
+xfs_ioc_fsgeometry_v2(
 	xfs_mount_t		*mp,
 	void			__user *arg)
 {
-	xfs_fsop_geom_t		fsgeo;
+	xfs_fsop_geom_v2_t	fsgeo;
 	int			error;
 
 	error = xfs_fs_geometry(mp, &fsgeo, 4);
 	if (error)
 		return error;
 
-	if (copy_to_user(arg, &fsgeo, sizeof(fsgeo)))
+	if (copy_to_user(arg, &fsgeo, sizeof(xfs_fsop_geom_v2_t)))
 		return -EFAULT;
 	return 0;
 }

@@ -1564,8 +1564,8 @@ xfs_file_ioctl(
 	case XFS_IOC_FSGEOMETRY_V1:
 		return xfs_ioc_fsgeometry_v1(mp, arg);
 
-	case XFS_IOC_FSGEOMETRY:
-		return xfs_ioc_fsgeometry(mp, arg);
+	case XFS_IOC_FSGEOMETRY_V2:
+		return xfs_ioc_fsgeometry_v2(mp, arg);
 
 	case XFS_IOC_GETVERSION:
 		return put_user(inode->i_generation, (int __user *)arg);

index a554646..207b224 100644
@@ -64,7 +64,7 @@ xfs_compat_ioc_fsgeometry_v1(
 	struct xfs_mount	  *mp,
 	compat_xfs_fsop_geom_v1_t __user *arg32)
 {
-	xfs_fsop_geom_t		  fsgeo;
+	xfs_fsop_geom_v2_t	  fsgeo;
 	int			  error;
 
 	error = xfs_fs_geometry(mp, &fsgeo, 3);

@@ -543,7 +543,7 @@ xfs_file_compat_ioctl(
 	switch (cmd) {
 	/* No size or alignment issues on any arch */
 	case XFS_IOC_DIOINFO:
-	case XFS_IOC_FSGEOMETRY:
+	case XFS_IOC_FSGEOMETRY_V2:
 	case XFS_IOC_FSGETXATTR:
 	case XFS_IOC_FSSETXATTR:
 	case XFS_IOC_FSGETXATTRA:

index b69468e..cf87e16 100644
@@ -51,11 +51,9 @@ int
 xfs_fs_geometry(
 	xfs_mount_t		*mp,
 	xfs_fsop_geom_v2_t	*geo,
-	int			new_version)
+	int			new_version,
+	size_t			*bytes)
 {
-
-	memset(geo, 0, sizeof(*geo));
-
 	geo->blocksize = mp->m_sb.sb_blocksize;
 	geo->rtextsize = mp->m_sb.sb_rextsize;
 	geo->agblocks = mp->m_sb.sb_agblocks;

index 26e7343..74e1fee 100644
@@ -19,7 +19,7 @@
 #define	__XFS_FSOPS_H__
 
 extern int xfs_fs_geometry(xfs_mount_t *mp, xfs_fsop_geom_v2_t *geo,
-		int nversion);
+		int new_version, size_t *bytes);
 extern int xfs_growfs_data(xfs_mount_t *mp, xfs_growfs_data_t *in);
 extern int xfs_growfs_log(xfs_mount_t *mp, xfs_growfs_log_t *in);
 extern int xfs_fs_counts(xfs_mount_t *mp, xfs_fsop_counts_t *cnt);

index 4393405..1657ce5 100644
@@ -826,7 +826,8 @@ xfs_ioc_fsgeometry_v1(
 	xfs_fsop_geom_v2_t	fsgeo;
 	int			error;
 
-	error = xfs_fs_geometry(mp, &fsgeo, 3);
+	memset(&fsgeo, 0, sizeof(fsgeo));
+	error = xfs_fs_geometry(mp, &fsgeo, 3, NULL);
 	if (error)
 		return error;
 

@@ -848,7 +849,8 @@ xfs_ioc_fsgeometry_v2(
 	xfs_fsop_geom_v2_t	fsgeo;
 	int			error;
 
-	error = xfs_fs_geometry(mp, &fsgeo, 4);
+	memset(&fsgeo, 0, sizeof(fsgeo));
+	error = xfs_fs_geometry(mp, &fsgeo, 4, NULL);
 	if (error)
 		return error;
 

index 207b224..aca988a 100644
@@ -67,7 +67,8 @@ xfs_compat_ioc_fsgeometry_v1(
 	xfs_fsop_geom_v2_t	  fsgeo;
 	int			  error;
 
-	error = xfs_fs_geometry(mp, &fsgeo, 3);
+	memset(&fsgeo, 0, sizeof(fsgeo));
+	error = xfs_fs_geometry(mp, &fsgeo, 3, NULL);
 	if (error)
 		return error;
 	/* The 32-bit variant simply has some padding at the end */

index fd45cbe..2f4d430 100644
@@ -206,6 +206,34 @@ typedef struct xfs_fsop_geom_v2 {
 	__u32		logsunit;	/* log stripe unit, bytes */
 } xfs_fsop_geom_v2_t;
 
+/*
+ * Output for XFS_IOC_FSGEOMETRY
+ */
+typedef struct xfs_fsop_geom {
+	__u32		blocksize;	/* filesystem (data) block size */
+	__u32		rtextsize;	/* realtime extent size		*/
+	__u32		agblocks;	/* fsblocks in an AG		*/
+	__u32		agcount;	/* number of allocation groups	*/
+	__u32		logblocks;	/* fsblocks in the log		*/
+	__u32		sectsize;	/* (data) sector size, bytes	*/
+	__u32		inodesize;	/* inode size in bytes		*/
+	__u32		imaxpct;	/* max allowed inode space(%)	*/
+	__u64		datablocks;	/* fsblocks in data subvolume	*/
+	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
+	__u64		rtextents;	/* rt extents in realtime subvol*/
+	__u64		logstart;	/* starting fsblock of the log	*/
+	unsigned char	uuid[16];	/* unique id of the filesystem	*/
+	__u32		sunit;		/* stripe unit, fsblocks	*/
+	__u32		swidth;		/* stripe width, fsblocks	*/
+	__s32		version;	/* structure version		*/
+	__u32		flags;		/* superblock version flags	*/
+	__u32		logsectsize;	/* log sector size, bytes	*/
+	__u32		rtsectsize;	/* realtime sector size, bytes	*/
+	__u32		dirblocksize;	/* directory block size, bytes	*/
+	__u32		logsunit;	/* log stripe unit, bytes */
+	__u32		utf8version;	/* Unicode version		*/
+} xfs_fsop_geom_t;
+
 /* Output for XFS_FS_COUNTS */
 typedef struct xfs_fsop_counts {
 	__u64	freedata;	/* free data section blocks */

@@ -221,6 +249,8 @@ typedef struct xfs_fsop_resblks {
 } xfs_fsop_resblks_t;
 
 #define XFS_FSOP_GEOM_VERSION	0
+/* skipped 1-4 to match existing new_version xfs_fs_geometry argument */
+#define XFS_FSOP_GEOM_VERSION5	5
 
 #define XFS_FSOP_GEOM_FLAGS_ATTR	0x0001	/* attributes in use	*/
 #define XFS_FSOP_GEOM_FLAGS_NLINK	0x0002	/* 32-bit nlink values	*/

@@ -557,6 +587,7 @@ typedef struct xfs_swapext
 #define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
 #define XFS_IOC_FSGEOMETRY_V2	     _IOR ('X', 124, struct xfs_fsop_geom_v2)
 #define XFS_IOC_GOINGDOWN	     _IOR ('X', 125, __uint32_t)
+#define XFS_IOC_FSGEOMETRY	     _IOR ('X', 126, struct xfs_fsop_geom)
 /*	XFS_IOC_GETFSUUID ---------- deprecated 140	 */
 
 

index cf87e16..d70acf8 100644
@@ -50,10 +50,12 @@
 int
 xfs_fs_geometry(
 	xfs_mount_t		*mp,
-	xfs_fsop_geom_v2_t	*geo,
+	void			*buffer,
 	int			new_version,
 	size_t			*bytes)
 {
+	xfs_fsop_geom_t		*geo = (xfs_fsop_geom_t *)buffer;
+
 	geo->blocksize = mp->m_sb.sb_blocksize;
 	geo->rtextsize = mp->m_sb.sb_rextsize;
 	geo->agblocks = mp->m_sb.sb_agblocks;

@@ -115,6 +117,15 @@ xfs_fs_geometry(
 				XFS_FSOP_GEOM_FLAGS_LOGV2 : 0);
 		geo->logsunit = mp->m_sb.sb_logsunit;
 	}
+	if (new_version >= XFS_FSOP_GEOM_VERSION5) {
+		geo->version = XFS_FSOP_GEOM_VERSION5;
+		geo->flags |= (xfs_sb_version_hasutf8(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_UTF8 : 0);
+		geo->utf8version = mp->m_sb.sb_utf8version;
+		if (bytes)
+			*bytes = sizeof(xfs_fsop_geom_v2_t) +
+				 sizeof(geo->utf8version);
+	}
 	return 0;
 }
 

index 74e1fee..b723f36 100644
@@ -18,7 +18,7 @@
 #ifndef __XFS_FSOPS_H__
 #define	__XFS_FSOPS_H__
 
-extern int xfs_fs_geometry(xfs_mount_t *mp, xfs_fsop_geom_v2_t *geo,
+extern int xfs_fs_geometry(xfs_mount_t *mp, void *buffer,
 		int new_version, size_t *bytes);
 extern int xfs_growfs_data(xfs_mount_t *mp, xfs_growfs_data_t *in);
 extern int xfs_growfs_log(xfs_mount_t *mp, xfs_growfs_log_t *in);

index 1657ce5..6308680 100644
@@ -859,6 +859,34 @@ xfs_ioc_fsgeometry_v2(
 	return 0;
 }
 
+STATIC int
+xfs_ioc_fsgeometry(
+	struct xfs_mount	*mp,
+	void			__user *arg)
+{
+	xfs_fsop_geom_t		fsgeo;
+	int			version, error;
+	size_t			bytes;
+
+	/* offsetof(version)? XXX just get 32 bits? */
+	if (copy_from_user(&fsgeo, arg, sizeof(xfs_fsop_geom_v1_t)))
+		return -EFAULT;
+
+	version = fsgeo.version;
+
+	if (version < XFS_FSOP_GEOM_VERSION5)
+		return -EINVAL;
+
+	memset(&fsgeo, 0, sizeof(fsgeo));
+	error = xfs_fs_geometry(mp, &fsgeo, version, &bytes);
+	if (error)
+		return error;
+
+	if (copy_to_user(arg, &fsgeo, bytes))
+		return -EFAULT;
+	return 0;
+}
+
 /*
  * Linux extended inode flags interface.
  */

@@ -1569,6 +1597,9 @@ xfs_file_ioctl(
 	case XFS_IOC_FSGEOMETRY_V2:
 		return xfs_ioc_fsgeometry_v2(mp, arg);
 
+	case XFS_IOC_FSGEOMETRY:
+		return xfs_ioc_fsgeometry(mp, arg);
+
 	case XFS_IOC_GETVERSION:
 		return put_user(inode->i_generation, (int __user *)arg);
 

2,968 lines not on this page · raw message

new file mode 100644
index 0000000..cd77580
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2014 SGI.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef UTF8NORM_H
+#define UTF8NORM_H
+
+/* An opaque type used to determine the normalization in use. */
+typedef const struct utf8data *utf8data_t;
+
+/* Encoding a unicode version number as a single unsigned int. */
+#define UNICODE_MAJ_SHIFT		(16)
+#define UNICODE_MIN_SHIFT		(8)
+
+#define UNICODE_AGE(MAJ,MIN,REV)			\
+	(((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) |	\
+	 ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) |	\
+	 ((unsigned int)(REV)))
+
+/* Highest unicode version supported by the data tables. */
+extern int utf8version_is_supported(unsigned int);
+
+/*
+ * Look for the correct utf8data_t for a unicode version.
+ * Returns NULL if the version requested is too new.
+ *
+ * Two normalization forms are supported: nfkdi and nfkdicf.
+ *
+ * nfkdi:
+ *  - Apply unicode normalization form NFKD.
+ *  - Remove any Default_Ignorable_Code_Point.
+ *
+ * nfkdicf:
+ *  - Apply unicode normalization form NFKD.
+ *  - Remove any Default_Ignorable_Code_Point.
+ *  - Apply a full casefold (C + F).
+ */
+extern utf8data_t utf8nfkdi(unsigned int);
+extern utf8data_t utf8nfkdicf(unsigned int);
+
+/*
+ * Determine the maximum age of any unicode character in the string.
+ * Returns 0 if only unassigned code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern int utf8agemax(utf8data_t, const char *);
+extern int utf8nagemax(utf8data_t, const char *, size_t);
+
+/*
+ * Determine the minimum age of any unicode character in the string.
+ * Returns 0 if any unassigned code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern int utf8agemin(utf8data_t, const char *);
+extern int utf8nagemin(utf8data_t, const char *, size_t);
+
+/*
+ * Determine the length of the normalized from of the string,
+ * excluding any terminating NULL byte.
+ * Returns 0 if only ignorable code points are present.
+ * Returns -1 if the input is not valid UTF-8.
+ */
+extern ssize_t utf8len(utf8data_t, const char *);
+extern ssize_t utf8nlen(utf8data_t, const char *, size_t);
+
+/*
+ * Cursor structure used by the normalizer.
+ */
+struct utf8cursor {
+	utf8data_t	data;
+	const char	*s;
+	const char	*p;
+	const char	*ss;
+	const char	*sp;
+	unsigned int	len;
+	unsigned int	slen;
+	short int	ccc;
+	short int	nccc;
+};
+
+/*
+ * Initialize a utf8cursor to normalize a string.
+ * Returns 0 on success.
+ * Returns -1 on failure.
+ */
+extern int utf8cursor(struct utf8cursor *, utf8data_t, const char *);
+extern int utf8ncursor(struct utf8cursor *, utf8data_t, const char *, size_t);
+
+/*
+ * Get the next byte in the normalization.
+ * Returns a value > 0 && < 256 on success.
+ * Returns 0 when the end of the normalization is reached.
+ * Returns -1 if the string being normalized is not valid UTF-8.
+ */
+extern int utf8byte(struct utf8cursor *);
+
+#endif /* UTF8NORM_H */

643 lines not on this page · raw message

index cd77580..44a869c 100644
@@ -22,6 +22,9 @@
 /* An opaque type used to determine the normalization in use. */
 typedef const struct utf8data *utf8data_t;
 
+/* Needed in struct utf8cursor below. */
+#define UTF8HANGULLEAF	(12)
+
 /* Encoding a unicode version number as a single unsigned int. */
 #define UNICODE_MAJ_SHIFT		(16)
 #define UNICODE_MIN_SHIFT		(8)

@@ -90,6 +93,7 @@ struct utf8cursor {
 	unsigned int	slen;
 	short int	ccc;
 	short int	nccc;
+	unsigned char	hangul[UTF8HANGULLEAF];
 };
 
 /*

315 lines not on this page · raw message

800 lines not on this page · raw message

index cede01f..2880431 100644
@@ -705,28 +705,21 @@ xfs_dir2_block_lookup_int(
 		dep = (xfs_dir2_data_entry_t *)
 			((char *)hdr + xfs_dir2_dataptr_to_off(mp, addr));
 		/*
-		 * Compare name and if it's an exact match, return the index
-		 * and buffer. If it's the first case-insensitive match, store
-		 * the index and buffer and continue looking for an exact match.
+		 * Compare name and if it's a match, return the
+		 * index and buffer.
 		 */
 		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
-		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+		if (cmp != XFS_CMP_DIFFERENT) {
 			args->cmpresult = cmp;
 			*bpp = bp;
 			*entno = mid;
-			if (cmp == XFS_CMP_EXACT)
-				return 0;
+			return 0;
 		}
 	} while (++mid < be32_to_cpu(btp->count) &&
 			be32_to_cpu(blp[mid].hashval) == hash);
 
 	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
-	/*
-	 * Here, we can only be doing a lookup (not a rename or replace).
-	 * If a case-insensitive match was found earlier, return success.
-	 */
-	if (args->cmpresult == XFS_CMP_CASE)
-		return 0;
+	ASSERT(args->cmpresult == XFS_CMP_DIFFERENT);
 	/*
 	 * No match, release the buffer and return ENOENT.
 	 */

index 8e0cbc9..b1901d3 100644
@@ -1246,7 +1246,6 @@ xfs_dir2_leaf_lookup_int(
 	xfs_mount_t		*mp;		/* filesystem mount point */
 	xfs_dir2_db_t		newdb;		/* new data block number */
 	xfs_trans_t		*tp;		/* transaction pointer */
-	xfs_dir2_db_t		cidb = -1;	/* case match data block no. */
 	enum xfs_dacmp		cmp;		/* name compare result */
 	struct xfs_dir2_leaf_entry *ents;
 	struct xfs_dir3_icleaf_hdr leafhdr;

@@ -1307,47 +1306,22 @@ xfs_dir2_leaf_lookup_int(
 		dep = (xfs_dir2_data_entry_t *)((char *)dbp->b_addr +
 			xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address)));
 		/*
-		 * Compare name and if it's an exact match, return the index
-		 * and buffer. If it's the first case-insensitive match, store
-		 * the index and buffer and continue looking for an exact match.
+		 * Compare name and if it's a match, return the index
+		 * and buffer.
 		 */
 		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
-		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+		if (cmp != XFS_CMP_DIFFERENT) {
 			args->cmpresult = cmp;
 			*indexp = index;
-			/* case exact match: return the current buffer. */
-			if (cmp == XFS_CMP_EXACT) {
-				*dbpp = dbp;
-				return 0;
-			}
-			cidb = curdb;
+			*dbpp = dbp;
+			return 0;
 		}
 	}
 	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
-	/*
-	 * Here, we can only be doing a lookup (not a rename or remove).
-	 * If a case-insensitive match was found earlier, re-read the
-	 * appropriate data block if required and return it.
-	 */
-	if (args->cmpresult == XFS_CMP_CASE) {
-		ASSERT(cidb != -1);
-		if (cidb != curdb) {
-			xfs_trans_brelse(tp, dbp);
-			error = xfs_dir3_data_read(tp, dp,
-						   xfs_dir2_db_to_da(mp, cidb),
-						   -1, &dbp);
-			if (error) {
-				xfs_trans_brelse(tp, lbp);
-				return error;
-			}
-		}
-		*dbpp = dbp;
-		return 0;
-	}
+	ASSERT(args->cmpresult == XFS_CMP_DIFFERENT);
 	/*
 	 * No match found, return ENOENT.
 	 */
-	ASSERT(cidb == -1);
 	if (dbp)
 		xfs_trans_brelse(tp, dbp);
 	xfs_trans_brelse(tp, lbp);

121 lines not on this page · raw message

index 7580333..7b01d43 100644
@@ -833,13 +833,12 @@ xfs_dir2_sf_lookup(
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
 	     i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) {
 		/*
-		 * Compare name and if it's an exact match, return the inode
-		 * number. If it's the first case-insensitive match, store the
-		 * inode number and continue looking for an exact match.
+		 * Compare name and if it's a match, return the inode
+		 * number.
 		 */
 		cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name,
 								sfep->namelen);
-		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+		if (cmp != XFS_CMP_DIFFERENT) {
 			args->cmpresult = cmp;
 			args->inumber = xfs_dir3_sfe_get_ino(dp->i_mount,
 							     sfp, sfep);

@@ -848,6 +847,7 @@ xfs_dir2_sf_lookup(
 			if (cmp == XFS_CMP_EXACT)
 				return XFS_ERROR(EEXIST);
 			ci_sfep = sfep;
+			break;
 		}
 	}
 	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);

index e492dca..3d9f9dd 100644
@@ -34,7 +34,7 @@ struct zone;
 enum xfs_dacmp {
 	XFS_CMP_DIFFERENT,	/* names are completely different */
 	XFS_CMP_EXACT,		/* names are exactly the same */
-	XFS_CMP_CASE		/* names are same but differ in case */
+	XFS_CMP_MATCH		/* names are same but differ in encoding */
 };
 
 /*

index 4c8c836..57e98a3 100644
@@ -72,7 +72,7 @@ xfs_ascii_ci_compname(
 			continue;
 		if (tolower(args->name[i]) != tolower(name[i]))
 			return XFS_CMP_DIFFERENT;
-		result = XFS_CMP_CASE;
+		result = XFS_CMP_MATCH;
 	}
 
 	return result;

@@ -248,8 +248,11 @@ xfs_dir_cilookup_result(
 {
 	if (args->cmpresult == XFS_CMP_DIFFERENT)
 		return ENOENT;
-	if (args->cmpresult != XFS_CMP_CASE ||
-					!(args->op_flags & XFS_DA_OP_CILOOKUP))
+	if (args->cmpresult == XFS_CMP_EXACT)
+		return EEXIST;
+	ASSERT(args->cmpresult == XFS_CMP_MATCH);
+	/* Only dup the found name if XFS_DA_OP_CILOOKUP is set. */
+	if (!(args->op_flags & XFS_DA_OP_CILOOKUP))
 		return EEXIST;
 
 	args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL);

index fb27506..550ca99 100644
@@ -2034,7 +2034,7 @@ xfs_dir2_node_lookup(
 	error = xfs_da3_node_lookup_int(state, &rval);
 	if (error)
 		rval = error;
-	else if (rval == ENOENT && args->cmpresult == XFS_CMP_CASE) {
+	else if (rval == ENOENT && args->cmpresult == XFS_CMP_MATCH) {
 		/* If a CI match, dup the actual name and return EEXIST */
 		xfs_dir2_data_entry_t	*dep;
 

index 3d9f9dd..f532d63 100644
@@ -42,7 +42,9 @@ enum xfs_dacmp {
  */
 typedef struct xfs_da_args {
 	const __uint8_t	*name;		/* string (maybe not NULL terminated) */
+	const __uint8_t	*norm;		/* normalized name (may be NULL) */
 	int		namelen;	/* length of string (maybe no NULL) */
+	int		normlen;	/* length of normalized name */
 	__uint8_t	filetype;	/* filetype of inode for directories */
 	__uint8_t	*value;		/* set of bytes (maybe contain NULLs) */
 	int		valuelen;	/* length of value */

@@ -131,6 +133,7 @@ typedef struct xfs_da_state {
  */
 struct xfs_nameops {
 	xfs_dahash_t	(*hashname)(struct xfs_name *);
+	int		(*normhash)(struct xfs_da_args *);
 	enum xfs_dacmp	(*compname)(struct xfs_da_args *,
 					const unsigned char *, int);
 };

index b731b54..eb97317 100644
@@ -2000,8 +2000,17 @@ xfs_default_hashname(
 	return xfs_da_hashname(name->name, name->len);
 }
 
+STATIC int
+xfs_da_normhash(
+	struct xfs_da_args *args)
+{
+	args->hashval = xfs_da_hashname(args->name, args->namelen);
+	return 0;
+}
+
 const struct xfs_nameops xfs_default_nameops = {
 	.hashname	= xfs_default_hashname,
+	.normhash	= xfs_da_normhash,
 	.compname	= xfs_da_compname
 };
 

162 lines not on this page · raw message

index 4fd9fd0..d317a71 100644
@@ -2212,7 +2212,6 @@ process_data_dir_v2(
 	int			stale = 0;
 	int			tag_err;
 	__be16			*tagp;
-	struct xfs_name		xname;
 
 	data = iocur_top->data;
 	block = iocur_top->data;

@@ -2323,9 +2322,9 @@ process_data_dir_v2(
 		tag_err += be16_to_cpu(*tagp) != (char *)dep - (char *)data;
 		addr = xfs_dir2_db_off_to_dataptr(mp, db,
 			(char *)dep - (char *)data);
-		xname.name = dep->name;
-		xname.len = dep->namelen;
-		dir_hash_add(mp->m_dirnameops->hashname(&xname), addr);
+		dir_hash_add(mp->m_dirnameops->hashname(dep->name,
+					dep->namelen,
+					0 /* version for later */), addr);
 		ptr += xfs_dir3_data_entsize(mp, dep->namelen);
 		count++;
 		lastfree = 0;

index f532d63..33efd3e 100644
@@ -132,7 +132,8 @@ typedef struct xfs_da_state {
  * Name ops for directory and/or attr name operations
  */
 struct xfs_nameops {
-	xfs_dahash_t	(*hashname)(struct xfs_name *);
+	xfs_dahash_t	(*hashname)(const unsigned char *, int,
+					unsigned int);
 	int		(*normhash)(struct xfs_da_args *);
 	enum xfs_dacmp	(*compname)(struct xfs_da_args *,
 					const unsigned char *, int);

index eb97317..c9784bd 100644
@@ -1983,6 +1983,15 @@ xfs_da_hashname(const __uint8_t *name, int namelen)
 	}
 }
 
+xfs_dahash_t
+xfs_da_hashname_op(
+	const __uint8_t		*name,
+	int 			namelen,
+	unsigned int 		unused)
+{
+	return xfs_da_hashname(name, namelen);
+}
+
 enum xfs_dacmp
 xfs_da_compname(
 	struct xfs_da_args *args,