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befs: remove trailing whitespaces
Removing all trailing whitespaces in befs. I was skeptic about tainting the history with this, but whitespace changes can be ignored by using 'git blame -w' and 'git log -w'. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
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@ -79,7 +79,7 @@ enum inode_flags {
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BEFS_INODE_WAS_WRITTEN = 0x00020000,
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BEFS_NO_TRANSACTION = 0x00040000,
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};
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/*
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/*
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* On-Disk datastructures of BeFS
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*/
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@ -139,7 +139,7 @@ typedef struct {
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} PACKED befs_super_block;
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/*
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/*
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* Note: the indirect and dbl_indir block_runs may
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* be longer than one block!
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*/
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@ -12,8 +12,8 @@
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*
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* Dominic Giampaolo, author of "Practical File System
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* Design with the Be File System", for such a helpful book.
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*
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* Marcus J. Ranum, author of the b+tree package in
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*
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* Marcus J. Ranum, author of the b+tree package in
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* comp.sources.misc volume 10. This code is not copied from that
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* work, but it is partially based on it.
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*
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@ -38,38 +38,38 @@
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*/
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/* Befs B+tree structure:
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*
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*
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* The first thing in the tree is the tree superblock. It tells you
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* all kinds of useful things about the tree, like where the rootnode
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* is located, and the size of the nodes (always 1024 with current version
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* of BeOS).
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*
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* The rest of the tree consists of a series of nodes. Nodes contain a header
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* (struct befs_btree_nodehead), the packed key data, an array of shorts
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* (struct befs_btree_nodehead), the packed key data, an array of shorts
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* containing the ending offsets for each of the keys, and an array of
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* befs_off_t values. In interior nodes, the keys are the ending keys for
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* the childnode they point to, and the values are offsets into the
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* datastream containing the tree.
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* befs_off_t values. In interior nodes, the keys are the ending keys for
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* the childnode they point to, and the values are offsets into the
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* datastream containing the tree.
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*/
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/* Note:
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*
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* The book states 2 confusing things about befs b+trees. First,
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*
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* The book states 2 confusing things about befs b+trees. First,
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* it states that the overflow field of node headers is used by internal nodes
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* to point to another node that "effectively continues this one". Here is what
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* I believe that means. Each key in internal nodes points to another node that
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* contains key values less than itself. Inspection reveals that the last key
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* in the internal node is not the last key in the index. Keys that are
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* greater than the last key in the internal node go into the overflow node.
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* contains key values less than itself. Inspection reveals that the last key
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* in the internal node is not the last key in the index. Keys that are
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* greater than the last key in the internal node go into the overflow node.
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* I imagine there is a performance reason for this.
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*
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* Second, it states that the header of a btree node is sufficient to
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* distinguish internal nodes from leaf nodes. Without saying exactly how.
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* Second, it states that the header of a btree node is sufficient to
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* distinguish internal nodes from leaf nodes. Without saying exactly how.
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* After figuring out the first, it becomes obvious that internal nodes have
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* overflow nodes and leafnodes do not.
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*/
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/*
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/*
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* Currently, this code is only good for directory B+trees.
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* In order to be used for other BFS indexes, it needs to be extended to handle
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* duplicate keys and non-string keytypes (int32, int64, float, double).
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@ -237,8 +237,8 @@ befs_bt_read_node(struct super_block *sb, const befs_data_stream *ds,
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* with @key (usually the disk block number of an inode).
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*
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* On failure, returns BEFS_ERR or BEFS_BT_NOT_FOUND.
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*
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* Algorithm:
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*
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* Algorithm:
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* Read the superblock and rootnode of the b+tree.
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* Drill down through the interior nodes using befs_find_key().
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* Once at the correct leaf node, use befs_find_key() again to get the
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@ -402,12 +402,12 @@ befs_find_key(struct super_block *sb, struct befs_btree_node *node,
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*
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* Here's how it works: Key_no is the index of the key/value pair to
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* return in keybuf/value.
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* Bufsize is the size of keybuf (BEFS_NAME_LEN+1 is a good size). Keysize is
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* Bufsize is the size of keybuf (BEFS_NAME_LEN+1 is a good size). Keysize is
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* the number of characters in the key (just a convenience).
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*
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* Algorithm:
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* Get the first leafnode of the tree. See if the requested key is in that
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* node. If not, follow the node->right link to the next leafnode. Repeat
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* node. If not, follow the node->right link to the next leafnode. Repeat
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* until the (key_no)th key is found or the tree is out of keys.
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*/
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int
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@ -536,7 +536,7 @@ befs_btree_read(struct super_block *sb, const befs_data_stream *ds,
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* @node_off: Pointer to offset of current node within datastream. Modified
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* by the function.
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*
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* Helper function for btree traverse. Moves the current position to the
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* Helper function for btree traverse. Moves the current position to the
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* start of the first leaf node.
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*
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* Also checks for an empty tree. If there are no keys, returns BEFS_BT_EMPTY.
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@ -592,10 +592,10 @@ befs_btree_seekleaf(struct super_block *sb, const befs_data_stream *ds,
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}
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/**
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* befs_leafnode - Determine if the btree node is a leaf node or an
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* befs_leafnode - Determine if the btree node is a leaf node or an
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* interior node
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* @node: Pointer to node structure to test
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*
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*
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* Return 1 if leaf, 0 if interior
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*/
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static int
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@ -656,7 +656,7 @@ befs_bt_valarray(struct befs_btree_node *node)
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* @node: Pointer to the node structure to find the keydata array within
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*
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* Returns a pointer to the start of the keydata array
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* of the node pointed to by the node header
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* of the node pointed to by the node header
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*/
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static char *
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befs_bt_keydata(struct befs_btree_node *node)
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@ -702,7 +702,7 @@ befs_bt_get_key(struct super_block *sb, struct befs_btree_node *node,
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/**
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* befs_compare_strings - compare two strings
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* @key1: pointer to the first key to be compared
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* @key1: pointer to the first key to be compared
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* @keylen1: length in bytes of key1
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* @key2: pointer to the second key to be compared
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* @keylen2: length in bytes of key2
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@ -1,6 +1,6 @@
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/*
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* btree.h
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*
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*
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*/
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int befs_btree_find(struct super_block *sb, const befs_data_stream *ds,
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@ -84,9 +84,9 @@ befs_read_datastream(struct super_block *sb, const befs_data_stream *ds,
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*
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* Takes a file position and gives back a brun who's starting block
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* is block number fblock of the file.
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*
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*
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* Returns BEFS_OK or BEFS_ERR.
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*
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*
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* Calls specialized functions for each of the three possible
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* datastream regions.
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*/
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@ -118,7 +118,7 @@ befs_fblock2brun(struct super_block *sb, const befs_data_stream *data,
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/**
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* befs_read_lsmylink - read long symlink from datastream.
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* @sb: Filesystem superblock
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* @sb: Filesystem superblock
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* @ds: Datastream to read from
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* @buff: Buffer in which to place long symlink data
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* @len: Length of the long symlink in bytes
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@ -1,6 +1,6 @@
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/*
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* inode.h
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*
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*
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*/
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int befs_check_inode(struct super_block *sb, befs_inode *raw_inode,
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@ -4,4 +4,3 @@
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struct buffer_head *befs_bread_iaddr(struct super_block *sb,
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befs_inode_addr iaddr);
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@ -84,9 +84,9 @@ static const struct address_space_operations befs_symlink_aops = {
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.readpage = befs_symlink_readpage,
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};
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/*
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/*
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* Called by generic_file_read() to read a page of data
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*
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*
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* In turn, simply calls a generic block read function and
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* passes it the address of befs_get_block, for mapping file
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* positions to disk blocks.
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@ -103,8 +103,8 @@ befs_bmap(struct address_space *mapping, sector_t block)
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return generic_block_bmap(mapping, block, befs_get_block);
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}
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/*
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* Generic function to map a file position (block) to a
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/*
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* Generic function to map a file position (block) to a
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* disk offset (passed back in bh_result).
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*
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* Used by many higher level functions.
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@ -337,7 +337,7 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
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/*
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* set uid and gid. But since current BeOS is single user OS, so
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* you can change by "uid" or "gid" options.
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*/
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*/
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inode->i_uid = befs_sb->mount_opts.use_uid ?
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befs_sb->mount_opts.uid :
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@ -352,14 +352,14 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
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* BEFS's time is 64 bits, but current VFS is 32 bits...
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* BEFS don't have access time. Nor inode change time. VFS
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* doesn't have creation time.
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* Also, the lower 16 bits of the last_modified_time and
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* Also, the lower 16 bits of the last_modified_time and
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* create_time are just a counter to help ensure uniqueness
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* for indexing purposes. (PFD, page 54)
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*/
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inode->i_mtime.tv_sec =
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fs64_to_cpu(sb, raw_inode->last_modified_time) >> 16;
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inode->i_mtime.tv_nsec = 0; /* lower 16 bits are not a time */
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inode->i_mtime.tv_nsec = 0; /* lower 16 bits are not a time */
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inode->i_ctime = inode->i_mtime;
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inode->i_atime = inode->i_mtime;
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@ -441,7 +441,7 @@ befs_init_inodecache(void)
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}
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/* Called at fs teardown.
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*
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*
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* Taken from NFS implementation by Al Viro.
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*/
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static void
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@ -491,7 +491,7 @@ static int befs_symlink_readpage(struct file *unused, struct page *page)
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/*
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* UTF-8 to NLS charset convert routine
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*
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*
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* Uses uni2char() / char2uni() rather than the nls tables directly
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*/
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static int
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@ -556,18 +556,18 @@ befs_utf2nls(struct super_block *sb, const char *in,
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* @in_len: Length of input string in bytes
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* @out: The output string in UTF-8 format
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* @out_len: Length of the output buffer
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*
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*
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* Converts input string @in, which is in the format of the loaded NLS map,
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* into a utf8 string.
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*
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*
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* The destination string @out is allocated by this function and the caller is
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* responsible for freeing it with kfree()
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*
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*
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* On return, *@out_len is the length of @out in bytes.
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*
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* On success, the return value is the number of utf8 characters written to
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* the output buffer @out.
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*
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*
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* On Failure, a negative number coresponding to the error code is returned.
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*/
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@ -719,7 +719,7 @@ parse_options(char *options, struct befs_mount_options *opts)
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}
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/* This function has the responsibiltiy of getting the
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* filesystem ready for unmounting.
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* filesystem ready for unmounting.
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* Basically, we free everything that we allocated in
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* befs_read_inode
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*/
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@ -780,7 +780,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
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* Linux 2.4.10 and later refuse to read blocks smaller than
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* the logical block size for the device. But we also need to read at
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* least 1k to get the second 512 bytes of the volume.
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*/
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*/
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blocksize = sb_min_blocksize(sb, 1024);
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if (!blocksize) {
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if (!silent)
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@ -917,7 +917,7 @@ static struct file_system_type befs_fs_type = {
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.name = "befs",
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.mount = befs_mount,
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.kill_sb = kill_block_super,
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.fs_flags = FS_REQUIRES_DEV,
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.fs_flags = FS_REQUIRES_DEV,
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};
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MODULE_ALIAS_FS("befs");
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