Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6: (69 commits)
  Revert "[MTD] m25p80.c code cleanup"
  [MTD] [NAND] GPIO driver depends on ARM... for now.
  [MTD] [NAND] sh_flctl: fix compile error
  [MTD] [NOR] AT49BV6416 has swapped erase regions
  [MTD] [NAND] GPIO NAND flash driver
  [MTD] cmdlineparts documentation change - explain where mtd-id comes from
  [MTD] cfi_cmdset_0002.c: Add Macronix CFI V1.0 TopBottom detection
  [MTD] [NAND] Fix compilation warnings in drivers/mtd/nand/cs553x_nand.c
  [JFFS2] Write buffer offset adjustment for NOR-ECC (Sibley) flash
  [MTD] mtdoops: Fix a bug where block may not be erased
  [MTD] mtdoops: Add a magic number to logged kernel oops
  [MTD] mtdoops: Fix an off by one error
  [JFFS2] Correct parameter names of jffs2_compress() in comments
  [MTD] [NAND] sh_flctl: add support for Renesas SuperH FLCTL
  [MTD] [NAND] Bug on atmel_nand HW ECC : OOB info not correctly written
  [MTD] [MAPS] Remove unused variable after ROM API cleanup.
  [MTD] m25p80.c extended jedec support (v2)
  [MTD] remove unused mtd parameter in of_mtd_parse_partitions()
  [MTD] [NAND] remove dead Kconfig associated with !CONFIG_PPC_MERGE
  [MTD] [NAND] driver extension to support NAND on TQM85xx modules
  ...

8 files changed, 203 insertions, 200 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index c189089f35a5..4eca61c201f0 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1168,195 +1168,7 @@ config EFS_FS
           To compile the EFS file system support as a module, choose M here: the
           module will be called efs.
 
-config JFFS2_FS
-        tristate "Journalling Flash File System v2 (JFFS2) support"
-        select CRC32
-        depends on MTD
-        help
-          JFFS2 is the second generation of the Journalling Flash File System
-          for use on diskless embedded devices. It provides improved wear
-          levelling, compression and support for hard links. You cannot use
-          this on normal block devices, only on 'MTD' devices.
-
-          Further information on the design and implementation of JFFS2 is
-          available at <http://sources.redhat.com/jffs2/>.
-
-config JFFS2_FS_DEBUG
-        int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
-        depends on JFFS2_FS
-        default "0"
-        help
-          This controls the amount of debugging messages produced by the JFFS2
-          code. Set it to zero for use in production systems. For evaluation,
-          testing and debugging, it's advisable to set it to one. This will
-          enable a few assertions and will print debugging messages at the
-          KERN_DEBUG loglevel, where they won't normally be visible. Level 2
-          is unlikely to be useful - it enables extra debugging in certain
-          areas which at one point needed debugging, but when the bugs were
-          located and fixed, the detailed messages were relegated to level 2.
-
-          If reporting bugs, please try to have available a full dump of the
-          messages at debug level 1 while the misbehaviour was occurring.
-
-config JFFS2_FS_WRITEBUFFER
-        bool "JFFS2 write-buffering support"
-        depends on JFFS2_FS
-        default y
-        help
-          This enables the write-buffering support in JFFS2.
-
-          This functionality is required to support JFFS2 on the following
-          types of flash devices:
-            - NAND flash
-            - NOR flash with transparent ECC
-            - DataFlash
-
-config JFFS2_FS_WBUF_VERIFY
-        bool "Verify JFFS2 write-buffer reads"
-        depends on JFFS2_FS_WRITEBUFFER
-        default n
-        help
-          This causes JFFS2 to read back every page written through the
-          write-buffer, and check for errors.
-
-config JFFS2_SUMMARY
-        bool "JFFS2 summary support (EXPERIMENTAL)"
-        depends on JFFS2_FS && EXPERIMENTAL
-        default n
-        help
-          This feature makes it possible to use summary information
-          for faster filesystem mount.
-
-          The summary information can be inserted into a filesystem image
-          by the utility 'sumtool'.
-
-          If unsure, say 'N'.
-
-config JFFS2_FS_XATTR
-        bool "JFFS2 XATTR support (EXPERIMENTAL)"
-        depends on JFFS2_FS && EXPERIMENTAL
-        default n
-        help
-          Extended attributes are name:value pairs associated with inodes by
-          the kernel or by users (see the attr(5) manual page, or visit
-          <http://acl.bestbits.at/> for details).
-
-          If unsure, say N.
-
-config JFFS2_FS_POSIX_ACL
-        bool "JFFS2 POSIX Access Control Lists"
-        depends on JFFS2_FS_XATTR
-        default y
-        select FS_POSIX_ACL
-        help
-          Posix Access Control Lists (ACLs) support permissions for users and
-          groups beyond the owner/group/world scheme.
-
-          To learn more about Access Control Lists, visit the Posix ACLs for
-          Linux website <http://acl.bestbits.at/>.
-
-          If you don't know what Access Control Lists are, say N
-
-config JFFS2_FS_SECURITY
-        bool "JFFS2 Security Labels"
-        depends on JFFS2_FS_XATTR
-        default y
-        help
-          Security labels support alternative access control models
-          implemented by security modules like SELinux.  This option
-          enables an extended attribute handler for file security
-          labels in the jffs2 filesystem.
-
-          If you are not using a security module that requires using
-          extended attributes for file security labels, say N.
-
-config JFFS2_COMPRESSION_OPTIONS
-        bool "Advanced compression options for JFFS2"
-        depends on JFFS2_FS
-        default n
-        help
-          Enabling this option allows you to explicitly choose which
-          compression modules, if any, are enabled in JFFS2. Removing
-          compressors can mean you cannot read existing file systems,
-          and enabling experimental compressors can mean that you
-          write a file system which cannot be read by a standard kernel.
-
-          If unsure, you should _definitely_ say 'N'.
-
-config JFFS2_ZLIB
-        bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
-        select ZLIB_INFLATE
-        select ZLIB_DEFLATE
-        depends on JFFS2_FS
-        default y
-        help
-          Zlib is designed to be a free, general-purpose, legally unencumbered,
-          lossless data-compression library for use on virtually any computer
-          hardware and operating system. See <http://www.gzip.org/zlib/> for
-          further information.
-
-          Say 'Y' if unsure.
-
-config JFFS2_LZO
-        bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
-        select LZO_COMPRESS
-        select LZO_DECOMPRESS
-        depends on JFFS2_FS
-        default n
-        help
-          minilzo-based compression. Generally works better than Zlib.
-
-          This feature was added in July, 2007. Say 'N' if you need
-          compatibility with older bootloaders or kernels.
-
-config JFFS2_RTIME
-        bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
-        depends on JFFS2_FS
-        default y
-        help
-          Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
-
-config JFFS2_RUBIN
-        bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
-        depends on JFFS2_FS
-        default n
-        help
-          RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
-
-choice
-        prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
-        default JFFS2_CMODE_PRIORITY
-        depends on JFFS2_FS
-        help
-          You can set here the default compression mode of JFFS2 from
-          the available compression modes. Don't touch if unsure.
-
-config JFFS2_CMODE_NONE
-        bool "no compression"
-        help
-          Uses no compression.
-
-config JFFS2_CMODE_PRIORITY
-        bool "priority"
-        help
-          Tries the compressors in a predefined order and chooses the first
-          successful one.
-
-config JFFS2_CMODE_SIZE
-        bool "size (EXPERIMENTAL)"
-        help
-          Tries all compressors and chooses the one which has the smallest
-          result.
-
-config JFFS2_CMODE_FAVOURLZO
-        bool "Favour LZO"
-        help
-          Tries all compressors and chooses the one which has the smallest
-          result but gives some preference to LZO (which has faster
-          decompression) at the expense of size.
-
-endchoice
-
+source "fs/jffs2/Kconfig"
 # UBIFS File system configuration
 source "fs/ubifs/Kconfig"
 
diff --git a/fs/jffs2/Kconfig b/fs/jffs2/Kconfig
new file mode 100644
index 000000000000..6ae169cd8faa
--- /dev/null
+++ b/fs/jffs2/Kconfig
@@ -0,0 +1,188 @@
+config JFFS2_FS
+        tristate "Journalling Flash File System v2 (JFFS2) support"
+        select CRC32
+        depends on MTD
+        help
+          JFFS2 is the second generation of the Journalling Flash File System
+          for use on diskless embedded devices. It provides improved wear
+          levelling, compression and support for hard links. You cannot use
+          this on normal block devices, only on 'MTD' devices.
+
+          Further information on the design and implementation of JFFS2 is
+          available at <http://sources.redhat.com/jffs2/>.
+
+config JFFS2_FS_DEBUG
+        int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
+        depends on JFFS2_FS
+        default "0"
+        help
+          This controls the amount of debugging messages produced by the JFFS2
+          code. Set it to zero for use in production systems. For evaluation,
+          testing and debugging, it's advisable to set it to one. This will
+          enable a few assertions and will print debugging messages at the
+          KERN_DEBUG loglevel, where they won't normally be visible. Level 2
+          is unlikely to be useful - it enables extra debugging in certain
+          areas which at one point needed debugging, but when the bugs were
+          located and fixed, the detailed messages were relegated to level 2.
+
+          If reporting bugs, please try to have available a full dump of the
+          messages at debug level 1 while the misbehaviour was occurring.
+
+config JFFS2_FS_WRITEBUFFER
+        bool "JFFS2 write-buffering support"
+        depends on JFFS2_FS
+        default y
+        help
+          This enables the write-buffering support in JFFS2.
+
+          This functionality is required to support JFFS2 on the following
+          types of flash devices:
+            - NAND flash
+            - NOR flash with transparent ECC
+            - DataFlash
+
+config JFFS2_FS_WBUF_VERIFY
+        bool "Verify JFFS2 write-buffer reads"
+        depends on JFFS2_FS_WRITEBUFFER
+        default n
+        help
+          This causes JFFS2 to read back every page written through the
+          write-buffer, and check for errors.
+
+config JFFS2_SUMMARY
+        bool "JFFS2 summary support (EXPERIMENTAL)"
+        depends on JFFS2_FS && EXPERIMENTAL
+        default n
+        help
+          This feature makes it possible to use summary information
+          for faster filesystem mount.
+
+          The summary information can be inserted into a filesystem image
+          by the utility 'sumtool'.
+
+          If unsure, say 'N'.
+
+config JFFS2_FS_XATTR
+        bool "JFFS2 XATTR support (EXPERIMENTAL)"
+        depends on JFFS2_FS && EXPERIMENTAL
+        default n
+        help
+          Extended attributes are name:value pairs associated with inodes by
+          the kernel or by users (see the attr(5) manual page, or visit
+          <http://acl.bestbits.at/> for details).
+
+          If unsure, say N.
+
+config JFFS2_FS_POSIX_ACL
+        bool "JFFS2 POSIX Access Control Lists"
+        depends on JFFS2_FS_XATTR
+        default y
+        select FS_POSIX_ACL
+        help
+          Posix Access Control Lists (ACLs) support permissions for users and
+          groups beyond the owner/group/world scheme.
+
+          To learn more about Access Control Lists, visit the Posix ACLs for
+          Linux website <http://acl.bestbits.at/>.
+
+          If you don't know what Access Control Lists are, say N
+
+config JFFS2_FS_SECURITY
+        bool "JFFS2 Security Labels"
+        depends on JFFS2_FS_XATTR
+        default y
+        help
+          Security labels support alternative access control models
+          implemented by security modules like SELinux.  This option
+          enables an extended attribute handler for file security
+          labels in the jffs2 filesystem.
+
+          If you are not using a security module that requires using
+          extended attributes for file security labels, say N.
+
+config JFFS2_COMPRESSION_OPTIONS
+        bool "Advanced compression options for JFFS2"
+        depends on JFFS2_FS
+        default n
+        help
+          Enabling this option allows you to explicitly choose which
+          compression modules, if any, are enabled in JFFS2. Removing
+          compressors can mean you cannot read existing file systems,
+          and enabling experimental compressors can mean that you
+          write a file system which cannot be read by a standard kernel.
+
+          If unsure, you should _definitely_ say 'N'.
+
+config JFFS2_ZLIB
+        bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS
+        select ZLIB_INFLATE
+        select ZLIB_DEFLATE
+        depends on JFFS2_FS
+        default y
+        help
+          Zlib is designed to be a free, general-purpose, legally unencumbered,
+          lossless data-compression library for use on virtually any computer
+          hardware and operating system. See <http://www.gzip.org/zlib/> for
+          further information.
+
+          Say 'Y' if unsure.
+
+config JFFS2_LZO
+        bool "JFFS2 LZO compression support" if JFFS2_COMPRESSION_OPTIONS
+        select LZO_COMPRESS
+        select LZO_DECOMPRESS
+        depends on JFFS2_FS
+        default n
+        help
+          minilzo-based compression. Generally works better than Zlib.
+
+          This feature was added in July, 2007. Say 'N' if you need
+          compatibility with older bootloaders or kernels.
+
+config JFFS2_RTIME
+        bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
+        depends on JFFS2_FS
+        default y
+        help
+          Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
+
+config JFFS2_RUBIN
+        bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
+        depends on JFFS2_FS
+        default n
+        help
+          RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
+
+choice
+        prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
+        default JFFS2_CMODE_PRIORITY
+        depends on JFFS2_FS
+        help
+          You can set here the default compression mode of JFFS2 from
+          the available compression modes. Don't touch if unsure.
+
+config JFFS2_CMODE_NONE
+        bool "no compression"
+        help
+          Uses no compression.
+
+config JFFS2_CMODE_PRIORITY
+        bool "priority"
+        help
+          Tries the compressors in a predefined order and chooses the first
+          successful one.
+
+config JFFS2_CMODE_SIZE
+        bool "size (EXPERIMENTAL)"
+        help
+          Tries all compressors and chooses the one which has the smallest
+          result.
+
+config JFFS2_CMODE_FAVOURLZO
+        bool "Favour LZO"
+        help
+          Tries all compressors and chooses the one which has the smallest
+          result but gives some preference to LZO (which has faster
+          decompression) at the expense of size.
+
+endchoice
diff --git a/fs/jffs2/compr.c b/fs/jffs2/compr.c
index 86739ee53b37..f25e70c1b51c 100644
--- a/fs/jffs2/compr.c
+++ b/fs/jffs2/compr.c
@@ -53,8 +53,8 @@ static int jffs2_is_best_compression(struct jffs2_compressor *this,
 }
 
 /* jffs2_compress:
- * @data: Pointer to uncompressed data
- * @cdata: Pointer to returned pointer to buffer for compressed data
+ * @data_in: Pointer to uncompressed data
+ * @cpage_out: Pointer to returned pointer to buffer for compressed data
  * @datalen: On entry, holds the amount of data available for compression.
  *      On exit, expected to hold the amount of data actually compressed.
  * @cdatalen: On entry, holds the amount of space available for compressed
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index cd219ef55254..b1aaae823a52 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -311,7 +311,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
         /* FIXME: If you care. We'd need to use frags for the target
            if it grows much more than this */
         if (targetlen > 254)
-                return -EINVAL;
+                return -ENAMETOOLONG;
 
         ri = jffs2_alloc_raw_inode();
 
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index dddb2a6c9e2c..259461b910af 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -68,7 +68,7 @@ static void jffs2_erase_block(struct jffs2_sb_info *c,
         instr->len = c->sector_size;
         instr->callback = jffs2_erase_callback;
         instr->priv = (unsigned long)(&instr[1]);
-        instr->fail_addr = 0xffffffff;
+        instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
 
         ((struct erase_priv_struct *)instr->priv)->jeb = jeb;
         ((struct erase_priv_struct *)instr->priv)->c = c;
@@ -175,7 +175,7 @@ static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock
 {
         /* For NAND, if the failure did not occur at the device level for a
            specific physical page, don't bother updating the bad block table. */
-        if (jffs2_cleanmarker_oob(c) && (bad_offset != 0xffffffff)) {
+        if (jffs2_cleanmarker_oob(c) && (bad_offset != MTD_FAIL_ADDR_UNKNOWN)) {
                 /* We had a device-level failure to erase.  Let's see if we've
                    failed too many times. */
                 if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) {
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 086c43830221..249305d65d5b 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -207,6 +207,8 @@ int jffs2_statfs(struct dentry *dentry, struct kstatfs *buf)
         buf->f_files = 0;
         buf->f_ffree = 0;
         buf->f_namelen = JFFS2_MAX_NAME_LEN;
+        buf->f_fsid.val[0] = JFFS2_SUPER_MAGIC;
+        buf->f_fsid.val[1] = c->mtd->index;
 
         spin_lock(&c->erase_completion_lock);
         avail = c->dirty_size + c->free_size;
@@ -440,14 +442,14 @@ struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_i
 
         memset(ri, 0, sizeof(*ri));
         /* Set OS-specific defaults for new inodes */
-        ri->uid = cpu_to_je16(current->fsuid);
+        ri->uid = cpu_to_je16(current_fsuid());
 
         if (dir_i->i_mode & S_ISGID) {
                 ri->gid = cpu_to_je16(dir_i->i_gid);
                 if (S_ISDIR(mode))
                         mode |= S_ISGID;
         } else {
-                ri->gid = cpu_to_je16(current->fsgid);
+                ri->gid = cpu_to_je16(current_fsgid());
         }
 
         /* POSIX ACLs have to be processed now, at least partly.
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index a9bf9603c1ba..0875b60b4bf7 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -261,6 +261,10 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
 
         jffs2_sum_reset_collected(c->summary); /* reset collected summary */
 
+        /* adjust write buffer offset, else we get a non contiguous write bug */
+        if (!(c->wbuf_ofs % c->sector_size) && !c->wbuf_len)
+                c->wbuf_ofs = 0xffffffff;
+
         D1(printk(KERN_DEBUG "jffs2_find_nextblock(): new nextblock = 0x%08x\n", c->nextblock->offset));
 
         return 0;
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 0e78b00035e4..d9a721e6db70 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -679,10 +679,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
 
         memset(c->wbuf,0xff,c->wbuf_pagesize);
         /* adjust write buffer offset, else we get a non contiguous write bug */
-        if (SECTOR_ADDR(c->wbuf_ofs) == SECTOR_ADDR(c->wbuf_ofs+c->wbuf_pagesize))
-                c->wbuf_ofs += c->wbuf_pagesize;
-        else
-                c->wbuf_ofs = 0xffffffff;
+        c->wbuf_ofs += c->wbuf_pagesize;
         c->wbuf_len = 0;
         return 0;
 }