Merge branch 'reiserfs-updates' from Jeff Mahoney

* reiserfs-updates: (35 commits)
  reiserfs: rename [cn]_* variables
  reiserfs: rename p_._ variables
  reiserfs: rename p_s_tb to tb
  reiserfs: rename p_s_inode to inode
  reiserfs: rename p_s_bh to bh
  reiserfs: rename p_s_sb to sb
  reiserfs: strip trailing whitespace
  reiserfs: cleanup path functions
  reiserfs: factor out buffer_info initialization
  reiserfs: add atomic addition of selinux attributes during inode creation
  reiserfs: use generic readdir for operations across all xattrs
  reiserfs: journaled xattrs
  reiserfs: use generic xattr handlers
  reiserfs: remove i_has_xattr_dir
  reiserfs: make per-inode xattr locking more fine grained
  reiserfs: eliminate per-super xattr lock
  reiserfs: simplify xattr internal file lookups/opens
  reiserfs: Clean up xattrs when REISERFS_FS_XATTR is unset
  reiserfs: remove IS_PRIVATE helpers
  reiserfs: remove link detection code
  ...

Fixed up conflicts manually due to:
 - quota name cleanups vs variable naming changes:
	fs/reiserfs/inode.c
	fs/reiserfs/namei.c
	fs/reiserfs/stree.c
        fs/reiserfs/xattr.c
 - exported include header cleanups
	include/linux/reiserfs_fs.h

1 files changed, 99 insertions, 104 deletions

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 823227a7662a..6fd0f47e45db 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -363,7 +363,7 @@ static int _get_block_create_0(struct inode *inode, sector_t block,
                 }
                 /* make sure we don't read more bytes than actually exist in
                  ** the file.  This can happen in odd cases where i_size isn't
-                 ** correct, and when direct item padding results in a few 
+                 ** correct, and when direct item padding results in a few
                  ** extra bytes at the end of the direct item
                  */
                 if ((le_ih_k_offset(ih) + path.pos_in_item) > inode->i_size)
@@ -438,15 +438,15 @@ static int reiserfs_bmap(struct inode *inode, sector_t block,
 ** -ENOENT instead of a valid buffer.  block_prepare_write expects to
 ** be able to do i/o on the buffers returned, unless an error value
 ** is also returned.
-** 
+**
 ** So, this allows block_prepare_write to be used for reading a single block
 ** in a page.  Where it does not produce a valid page for holes, or past the
 ** end of the file.  This turns out to be exactly what we need for reading
 ** tails for conversion.
 **
 ** The point of the wrapper is forcing a certain value for create, even
-** though the VFS layer is calling this function with create==1.  If you 
-** don't want to send create == GET_BLOCK_NO_HOLE to reiserfs_get_block, 
+** though the VFS layer is calling this function with create==1.  If you
+** don't want to send create == GET_BLOCK_NO_HOLE to reiserfs_get_block,
 ** don't use this function.
 */
 static int reiserfs_get_block_create_0(struct inode *inode, sector_t block,
@@ -602,7 +602,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
         int done;
         int fs_gen;
         struct reiserfs_transaction_handle *th = NULL;
-        /* space reserved in transaction batch: 
+        /* space reserved in transaction batch:
            . 3 balancings in direct->indirect conversion
            . 1 block involved into reiserfs_update_sd()
            XXX in practically impossible worst case direct2indirect()
@@ -754,7 +754,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
                 reiserfs_write_unlock(inode->i_sb);
 
                 /* the item was found, so new blocks were not added to the file
-                 ** there is no need to make sure the inode is updated with this 
+                 ** there is no need to make sure the inode is updated with this
                  ** transaction
                  */
                 return retval;
@@ -841,10 +841,12 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
                                                           tail_offset);
                                 if (retval) {
                                         if (retval != -ENOSPC)
-                                                reiserfs_warning(inode->i_sb,
-                                                                 "clm-6004: convert tail failed inode %lu, error %d",
-                                                                 inode->i_ino,
-                                                                 retval);
+                                                reiserfs_error(inode->i_sb,
+                                                        "clm-6004",
+                                                        "convert tail failed "
+                                                        "inode %lu, error %d",
+                                                        inode->i_ino,
+                                                        retval);
                                         if (allocated_block_nr) {
                                                 /* the bitmap, the super, and the stat data == 3 */
                                                 if (!th)
@@ -984,7 +986,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 
                 /* this loop could log more blocks than we had originally asked
                  ** for.  So, we have to allow the transaction to end if it is
-                 ** too big or too full.  Update the inode so things are 
+                 ** too big or too full.  Update the inode so things are
                  ** consistent if we crash before the function returns
                  **
                  ** release the path so that anybody waiting on the path before
@@ -995,7 +997,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
                         if (retval)
                                 goto failure;
                 }
-                /* inserting indirect pointers for a hole can take a 
+                /* inserting indirect pointers for a hole can take a
                  ** long time.  reschedule if needed
                  */
                 cond_resched();
@@ -1006,8 +1008,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
                         goto failure;
                 }
                 if (retval == POSITION_FOUND) {
-                        reiserfs_warning(inode->i_sb,
-                                         "vs-825: reiserfs_get_block: "
+                        reiserfs_warning(inode->i_sb, "vs-825",
                                          "%K should not be found", &key);
                         retval = -EEXIST;
                         if (allocated_block_nr)
@@ -1299,8 +1300,7 @@ static void update_stat_data(struct treepath *path, struct inode *inode,
         ih = PATH_PITEM_HEAD(path);
 
         if (!is_statdata_le_ih(ih))
-                reiserfs_panic(inode->i_sb,
-                               "vs-13065: update_stat_data: key %k, found item %h",
+                reiserfs_panic(inode->i_sb, "vs-13065", "key %k, found item %h",
                                INODE_PKEY(inode), ih);
 
         if (stat_data_v1(ih)) {
@@ -1332,10 +1332,9 @@ void reiserfs_update_sd_size(struct reiserfs_transaction_handle *th,
                 /* look for the object's stat data */
                 retval = search_item(inode->i_sb, &key, &path);
                 if (retval == IO_ERROR) {
-                        reiserfs_warning(inode->i_sb,
-                                         "vs-13050: reiserfs_update_sd: "
-                                         "i/o failure occurred trying to update %K stat data",
-                                         &key);
+                        reiserfs_error(inode->i_sb, "vs-13050",
+                                       "i/o failure occurred trying to "
+                                       "update %K stat data", &key);
                         return;
                 }
                 if (retval == ITEM_NOT_FOUND) {
@@ -1345,9 +1344,9 @@ void reiserfs_update_sd_size(struct reiserfs_transaction_handle *th,
                                 /*reiserfs_warning (inode->i_sb, "vs-13050: reiserfs_update_sd: i_nlink == 0, stat data not found"); */
                                 return;
                         }
-                        reiserfs_warning(inode->i_sb,
-                                         "vs-13060: reiserfs_update_sd: "
-                                         "stat data of object %k (nlink == %d) not found (pos %d)",
+                        reiserfs_warning(inode->i_sb, "vs-13060",
+                                         "stat data of object %k (nlink == %d) "
+                                         "not found (pos %d)",
                                          INODE_PKEY(inode), inode->i_nlink,
                                          pos);
                         reiserfs_check_path(&path);
@@ -1424,10 +1423,9 @@ void reiserfs_read_locked_inode(struct inode *inode,
         /* look for the object's stat data */
         retval = search_item(inode->i_sb, &key, &path_to_sd);
         if (retval == IO_ERROR) {
-                reiserfs_warning(inode->i_sb,
-                                 "vs-13070: reiserfs_read_locked_inode: "
-                                 "i/o failure occurred trying to find stat data of %K",
-                                 &key);
+                reiserfs_error(inode->i_sb, "vs-13070",
+                               "i/o failure occurred trying to find "
+                               "stat data of %K", &key);
                 reiserfs_make_bad_inode(inode);
                 return;
         }
@@ -1446,7 +1444,7 @@ void reiserfs_read_locked_inode(struct inode *inode,
            update sd on unlink all that is required is to check for nlink
            here. This bug was first found by Sizif when debugging
            SquidNG/Butterfly, forgotten, and found again after Philippe
-           Gramoulle <philippe.gramoulle@mmania.com> reproduced it. 
+           Gramoulle <philippe.gramoulle@mmania.com> reproduced it.
 
            More logical fix would require changes in fs/inode.c:iput() to
            remove inode from hash-table _after_ fs cleaned disk stuff up and
@@ -1457,8 +1455,7 @@ void reiserfs_read_locked_inode(struct inode *inode,
            during mount (fs/reiserfs/super.c:finish_unfinished()). */
         if ((inode->i_nlink == 0) &&
             !REISERFS_SB(inode->i_sb)->s_is_unlinked_ok) {
-                reiserfs_warning(inode->i_sb,
-                                 "vs-13075: reiserfs_read_locked_inode: "
+                reiserfs_warning(inode->i_sb, "vs-13075",
                                  "dead inode read from disk %K. "
                                  "This is likely to be race with knfsd. Ignore",
                                  &key);
@@ -1555,7 +1552,7 @@ struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
          */
         if (fh_type > fh_len) {
                 if (fh_type != 6 || fh_len != 5)
-                        reiserfs_warning(sb,
+                        reiserfs_warning(sb, "reiserfs-13077",
                                 "nfsd/reiserfs, fhtype=%d, len=%d - odd",
                                 fh_type, fh_len);
                 fh_type = 5;
@@ -1622,7 +1619,7 @@ int reiserfs_write_inode(struct inode *inode, int do_sync)
         if (inode->i_sb->s_flags & MS_RDONLY)
                 return -EROFS;
         /* memory pressure can sometimes initiate write_inode calls with sync == 1,
-         ** these cases are just when the system needs ram, not when the 
+         ** these cases are just when the system needs ram, not when the
          ** inode needs to reach disk for safety, and they can safely be
          ** ignored because the altered inode has already been logged.
          */
@@ -1680,13 +1677,13 @@ static int reiserfs_new_directory(struct reiserfs_transaction_handle *th,
         /* look for place in the tree for new item */
         retval = search_item(sb, &key, path);
         if (retval == IO_ERROR) {
-                reiserfs_warning(sb, "vs-13080: reiserfs_new_directory: "
-                                 "i/o failure occurred creating new directory");
+                reiserfs_error(sb, "vs-13080",
+                               "i/o failure occurred creating new directory");
                 return -EIO;
         }
         if (retval == ITEM_FOUND) {
                 pathrelse(path);
-                reiserfs_warning(sb, "vs-13070: reiserfs_new_directory: "
+                reiserfs_warning(sb, "vs-13070",
                                  "object with this key exists (%k)",
                                  &(ih->ih_key));
                 return -EEXIST;
@@ -1720,13 +1717,13 @@ static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct i
         /* look for place in the tree for new item */
         retval = search_item(sb, &key, path);
         if (retval == IO_ERROR) {
-                reiserfs_warning(sb, "vs-13080: reiserfs_new_symlinik: "
-                                 "i/o failure occurred creating new symlink");
+                reiserfs_error(sb, "vs-13080",
+                               "i/o failure occurred creating new symlink");
                 return -EIO;
         }
         if (retval == ITEM_FOUND) {
                 pathrelse(path);
-                reiserfs_warning(sb, "vs-13080: reiserfs_new_symlink: "
+                reiserfs_warning(sb, "vs-13080",
                                  "object with this key exists (%k)",
                                  &(ih->ih_key));
                 return -EEXIST;
@@ -1739,7 +1736,7 @@ static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct i
 /* inserts the stat data into the tree, and then calls
    reiserfs_new_directory (to insert ".", ".." item if new object is
    directory) or reiserfs_new_symlink (to insert symlink body if new
-   object is symlink) or nothing (if new object is regular file) 
+   object is symlink) or nothing (if new object is regular file)
 
    NOTE! uid and gid must already be set in the inode.  If we return
    non-zero due to an error, we have to drop the quota previously allocated
@@ -1747,10 +1744,11 @@ static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct i
    if we return non-zero, we also end the transaction.  */
 int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
                        struct inode *dir, int mode, const char *symname,
-                       /* 0 for regular, EMTRY_DIR_SIZE for dirs, 
+                       /* 0 for regular, EMTRY_DIR_SIZE for dirs,
                           strlen (symname) for symlinks) */
                        loff_t i_size, struct dentry *dentry,
-                       struct inode *inode)
+                       struct inode *inode,
+                       struct reiserfs_security_handle *security)
 {
         struct super_block *sb;
         struct reiserfs_iget_args args;
@@ -1796,7 +1794,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
                 goto out_bad_inode;
         }
         if (old_format_only(sb))
-                /* not a perfect generation count, as object ids can be reused, but 
+                /* not a perfect generation count, as object ids can be reused, but
                  ** this is as good as reiserfs can do right now.
                  ** note that the private part of inode isn't filled in yet, we have
                  ** to use the directory.
@@ -1917,9 +1915,8 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
                 goto out_inserted_sd;
         }
 
-        /* XXX CHECK THIS */
         if (reiserfs_posixacl(inode->i_sb)) {
-                retval = reiserfs_inherit_default_acl(dir, dentry, inode);
+                retval = reiserfs_inherit_default_acl(th, dir, dentry, inode);
                 if (retval) {
                         err = retval;
                         reiserfs_check_path(&path_to_key);
@@ -1927,10 +1924,23 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
                         goto out_inserted_sd;
                 }
         } else if (inode->i_sb->s_flags & MS_POSIXACL) {
-                reiserfs_warning(inode->i_sb, "ACLs aren't enabled in the fs, "
+                reiserfs_warning(inode->i_sb, "jdm-13090",
+                                 "ACLs aren't enabled in the fs, "
                                  "but vfs thinks they are!");
-        } else if (is_reiserfs_priv_object(dir)) {
-                reiserfs_mark_inode_private(inode);
+        } else if (IS_PRIVATE(dir))
+                inode->i_flags |= S_PRIVATE;
+
+        if (security->name) {
+                retval = reiserfs_security_write(th, inode, security);
+                if (retval) {
+                        err = retval;
+                        reiserfs_check_path(&path_to_key);
+                        retval = journal_end(th, th->t_super,
+                                             th->t_blocks_allocated);
+                        if (retval)
+                                err = retval;
+                        goto out_inserted_sd;
+                }
         }
 
         reiserfs_update_sd(th, inode);
@@ -1960,19 +1970,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
         inode->i_nlink = 0;
         th->t_trans_id = 0;     /* so the caller can't use this handle later */
         unlock_new_inode(inode); /* OK to do even if we hadn't locked it */
-
-        /* If we were inheriting an ACL, we need to release the lock so that
-         * iput doesn't deadlock in reiserfs_delete_xattrs. The locking
-         * code really needs to be reworked, but this will take care of it
-         * for now. -jeffm */
-#ifdef CONFIG_REISERFS_FS_POSIX_ACL
-        if (REISERFS_I(dir)->i_acl_default && !IS_ERR(REISERFS_I(dir)->i_acl_default)) {
-                reiserfs_write_unlock_xattrs(dir->i_sb);
-                iput(inode);
-                reiserfs_write_lock_xattrs(dir->i_sb);
-        } else
-#endif
-                iput(inode);
+        iput(inode);
         return err;
 }
 
@@ -1989,7 +1987,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 **
 ** on failure, nonzero is returned, page_result and bh_result are untouched.
 */
-static int grab_tail_page(struct inode *p_s_inode,
+static int grab_tail_page(struct inode *inode,
                           struct page **page_result,
                           struct buffer_head **bh_result)
 {
@@ -1997,11 +1995,11 @@ static int grab_tail_page(struct inode *p_s_inode,
         /* we want the page with the last byte in the file,
          ** not the page that will hold the next byte for appending
          */
-        unsigned long index = (p_s_inode->i_size - 1) >> PAGE_CACHE_SHIFT;
+        unsigned long index = (inode->i_size - 1) >> PAGE_CACHE_SHIFT;
         unsigned long pos = 0;
         unsigned long start = 0;
-        unsigned long blocksize = p_s_inode->i_sb->s_blocksize;
-        unsigned long offset = (p_s_inode->i_size) & (PAGE_CACHE_SIZE - 1);
+        unsigned long blocksize = inode->i_sb->s_blocksize;
+        unsigned long offset = (inode->i_size) & (PAGE_CACHE_SIZE - 1);
         struct buffer_head *bh;
         struct buffer_head *head;
         struct page *page;
@@ -2015,7 +2013,7 @@ static int grab_tail_page(struct inode *p_s_inode,
         if ((offset & (blocksize - 1)) == 0) {
                 return -ENOENT;
         }
-        page = grab_cache_page(p_s_inode->i_mapping, index);
+        page = grab_cache_page(inode->i_mapping, index);
         error = -ENOMEM;
         if (!page) {
                 goto out;
@@ -2044,10 +2042,8 @@ static int grab_tail_page(struct inode *p_s_inode,
                  ** I've screwed up the code to find the buffer, or the code to
                  ** call prepare_write
                  */
-                reiserfs_warning(p_s_inode->i_sb,
-                                 "clm-6000: error reading block %lu on dev %s",
-                                 bh->b_blocknr,
-                                 reiserfs_bdevname(p_s_inode->i_sb));
+                reiserfs_error(inode->i_sb, "clm-6000",
+                               "error reading block %lu", bh->b_blocknr);
                 error = -EIO;
                 goto unlock;
         }
@@ -2069,57 +2065,58 @@ static int grab_tail_page(struct inode *p_s_inode,
 **
 ** some code taken from block_truncate_page
 */
-int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
+int reiserfs_truncate_file(struct inode *inode, int update_timestamps)
 {
         struct reiserfs_transaction_handle th;
         /* we want the offset for the first byte after the end of the file */
-        unsigned long offset = p_s_inode->i_size & (PAGE_CACHE_SIZE - 1);
-        unsigned blocksize = p_s_inode->i_sb->s_blocksize;
+        unsigned long offset = inode->i_size & (PAGE_CACHE_SIZE - 1);
+        unsigned blocksize = inode->i_sb->s_blocksize;
         unsigned length;
         struct page *page = NULL;
         int error;
         struct buffer_head *bh = NULL;
         int err2;
 
-        reiserfs_write_lock(p_s_inode->i_sb);
+        reiserfs_write_lock(inode->i_sb);
 
-        if (p_s_inode->i_size > 0) {
-                if ((error = grab_tail_page(p_s_inode, &page, &bh))) {
-                        // -ENOENT means we truncated past the end of the file, 
+        if (inode->i_size > 0) {
+                error = grab_tail_page(inode, &page, &bh);
+                if (error) {
+                        // -ENOENT means we truncated past the end of the file,
                         // and get_block_create_0 could not find a block to read in,
                         // which is ok.
                         if (error != -ENOENT)
-                                reiserfs_warning(p_s_inode->i_sb,
-                                                 "clm-6001: grab_tail_page failed %d",
-                                                 error);
+                                reiserfs_error(inode->i_sb, "clm-6001",
+                                               "grab_tail_page failed %d",
+                                               error);
                         page = NULL;
                         bh = NULL;
                 }
         }
 
-        /* so, if page != NULL, we have a buffer head for the offset at 
-         ** the end of the file. if the bh is mapped, and bh->b_blocknr != 0, 
-         ** then we have an unformatted node.  Otherwise, we have a direct item, 
-         ** and no zeroing is required on disk.  We zero after the truncate, 
-         ** because the truncate might pack the item anyway 
+        /* so, if page != NULL, we have a buffer head for the offset at
+         ** the end of the file. if the bh is mapped, and bh->b_blocknr != 0,
+         ** then we have an unformatted node.  Otherwise, we have a direct item,
+         ** and no zeroing is required on disk.  We zero after the truncate,
+         ** because the truncate might pack the item anyway
          ** (it will unmap bh if it packs).
          */
         /* it is enough to reserve space in transaction for 2 balancings:
            one for "save" link adding and another for the first
            cut_from_item. 1 is for update_sd */
-        error = journal_begin(&th, p_s_inode->i_sb,
+        error = journal_begin(&th, inode->i_sb,
                               JOURNAL_PER_BALANCE_CNT * 2 + 1);
         if (error)
                 goto out;
-        reiserfs_update_inode_transaction(p_s_inode);
+        reiserfs_update_inode_transaction(inode);
         if (update_timestamps)
                 /* we are doing real truncate: if the system crashes before the last
                    transaction of truncating gets committed - on reboot the file
                    either appears truncated properly or not truncated at all */
-                add_save_link(&th, p_s_inode, 1);
-        err2 = reiserfs_do_truncate(&th, p_s_inode, page, update_timestamps);
+                add_save_link(&th, inode, 1);
+        err2 = reiserfs_do_truncate(&th, inode, page, update_timestamps);
         error =
-            journal_end(&th, p_s_inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1);
+            journal_end(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1);
         if (error)
                 goto out;
 
@@ -2130,7 +2127,7 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
         }
         
         if (update_timestamps) {
-                error = remove_save_link(p_s_inode, 1 /* truncate */ );
+                error = remove_save_link(inode, 1 /* truncate */);
                 if (error)
                         goto out;
         }
@@ -2149,14 +2146,14 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
                 page_cache_release(page);
         }
 
-        reiserfs_write_unlock(p_s_inode->i_sb);
+        reiserfs_write_unlock(inode->i_sb);
         return 0;
       out:
         if (page) {
                 unlock_page(page);
                 page_cache_release(page);
         }
-        reiserfs_write_unlock(p_s_inode->i_sb);
+        reiserfs_write_unlock(inode->i_sb);
         return error;
 }
 
@@ -2208,9 +2205,8 @@ static int map_block_for_writepage(struct inode *inode,
         /* we've found an unformatted node */
         if (indirect_item_found(retval, ih)) {
                 if (bytes_copied > 0) {
-                        reiserfs_warning(inode->i_sb,
-                                         "clm-6002: bytes_copied %d",
-                                         bytes_copied);
+                        reiserfs_warning(inode->i_sb, "clm-6002",
+                                         "bytes_copied %d", bytes_copied);
                 }
                 if (!get_block_num(item, pos_in_item)) {
                         /* crap, we are writing to a hole */
@@ -2267,9 +2263,8 @@ static int map_block_for_writepage(struct inode *inode,
                         goto research;
                 }
         } else {
-                reiserfs_warning(inode->i_sb,
-                                 "clm-6003: bad item inode %lu, device %s",
-                                 inode->i_ino, reiserfs_bdevname(inode->i_sb));
+                reiserfs_warning(inode->i_sb, "clm-6003",
+                                 "bad item inode %lu", inode->i_ino);
                 retval = -EIO;
                 goto out;
         }
@@ -2312,8 +2307,8 @@ static int map_block_for_writepage(struct inode *inode,
         return retval;
 }
 
-/* 
- * mason@suse.com: updated in 2.5.54 to follow the same general io 
+/*
+ * mason@suse.com: updated in 2.5.54 to follow the same general io
  * start/recovery path as __block_write_full_page, along with special
  * code to handle reiserfs tails.
  */
@@ -2453,7 +2448,7 @@ static int reiserfs_write_full_page(struct page *page,
         unlock_page(page);
 
         /*
-         * since any buffer might be the only dirty buffer on the page, 
+         * since any buffer might be the only dirty buffer on the page,
          * the first submit_bh can bring the page out of writeback.
          * be careful with the buffers.
          */
@@ -2472,8 +2467,8 @@ static int reiserfs_write_full_page(struct page *page,
         if (nr == 0) {
                 /*
                  * if this page only had a direct item, it is very possible for
-                 * no io to be required without there being an error.  Or, 
-                 * someone else could have locked them and sent them down the 
+                 * no io to be required without there being an error.  Or,
+                 * someone else could have locked them and sent them down the
                  * pipe without locking the page
                  */
                 bh = head;
@@ -2492,7 +2487,7 @@ static int reiserfs_write_full_page(struct page *page,
 
       fail:
         /* catches various errors, we need to make sure any valid dirty blocks
-         * get to the media.  The page is currently locked and not marked for 
+         * get to the media.  The page is currently locked and not marked for
          * writeback
          */
         ClearPageUptodate(page);