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[platform/upstream/busybox.git] / e2fsprogs / ext2fs / inode.c

diff --git a/e2fsprogs/ext2fs/inode.c b/e2fsprogs/ext2fs/inode.c
index 30580bf..e50bece 100644 (file)
--- a/e2fsprogs/ext2fs/inode.c
+++ b/e2fsprogs/ext2fs/inode.c
@@ -1,6 +1,6 @@
 /*
  * inode.c --- utility routines to read and write inodes
- * 
+ *
  * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
  *
  * %Begin-Header%
@@ -59,7 +59,7 @@ struct ext2_struct_inode_scan {
 errcode_t ext2fs_flush_icache(ext2_filsys fs)
 {
        int     i;
-       
+
        if (!fs->icache)
                return 0;
 
@@ -73,7 +73,7 @@ errcode_t ext2fs_flush_icache(ext2_filsys fs)
 static errcode_t create_icache(ext2_filsys fs)
 {
        errcode_t       retval;
-       
+
        if (fs->icache)
                return 0;
        retval = ext2fs_get_mem(sizeof(struct ext2_inode_cache), &fs->icache);
@@ -146,7 +146,7 @@ errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
                group_desc[scan->current_group].bg_inode_table;
        scan->inodes_left = EXT2_INODES_PER_GROUP(scan->fs->super);
        scan->blocks_left = scan->fs->inode_blocks_per_group;
-       retval = ext2fs_get_mem((size_t) (scan->inode_buffer_blocks * 
+       retval = ext2fs_get_mem((size_t) (scan->inode_buffer_blocks *
                                          fs->blocksize),
                                &scan->inode_buffer);
        scan->done_group = 0;
@@ -172,7 +172,7 @@ void ext2fs_close_inode_scan(ext2_inode_scan scan)
 {
        if (!scan || (scan->magic != EXT2_ET_MAGIC_INODE_SCAN))
                return;
-       
+
        ext2fs_free_mem(&scan->inode_buffer);
        scan->inode_buffer = NULL;
        ext2fs_free_mem(&scan->temp_buffer);
@@ -190,7 +190,7 @@ void ext2fs_set_inode_callback(ext2_inode_scan scan,
 {
        if (!scan || (scan->magic != EXT2_ET_MAGIC_INODE_SCAN))
                return;
-       
+
        scan->done_group = done_group;
        scan->done_group_data = done_group_data;
 }
@@ -217,7 +217,7 @@ static errcode_t get_next_blockgroup(ext2_inode_scan scan)
 {
        scan->current_group++;
        scan->groups_left--;
-                       
+
        scan->current_block = scan->fs->
                group_desc[scan->current_group].bg_inode_table;
 
@@ -335,7 +335,7 @@ static errcode_t get_next_blocks(ext2_inode_scan scan)
                if (retval)
                        return retval;
        }
-               
+
        if ((scan->scan_flags & EXT2_SF_BAD_INODE_BLK) ||
            (scan->current_block == 0)) {
                memset(scan->inode_buffer, 0,
@@ -367,7 +367,7 @@ static errcode_t get_next_blocks(ext2_inode_scan scan)
 static inline int is_empty_scan(ext2_inode_scan scan)
 {
        int     i;
-       
+
        if (scan->bytes_left == 0)
                return 0;
 
@@ -383,7 +383,7 @@ errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, ext2_ino_t *ino,
 {
        errcode_t       retval;
        int             extra_bytes = 0;
-       
+
        EXT2_CHECK_MAGIC(scan, EXT2_ET_MAGIC_INODE_SCAN);
 
        /*
@@ -416,7 +416,7 @@ errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, ext2_ino_t *ino,
                } else
                        return EXT2_ET_MISSING_INODE_TABLE;
        }
-       
+
 
        /*
         * Have we run out of space in the inode buffer?  If so, we
@@ -449,9 +449,9 @@ errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, ext2_ino_t *ino,
 #ifdef EXT2FS_ENABLE_SWAPFS
                if ((scan->fs->flags & EXT2_FLAG_SWAP_BYTES) ||
                    (scan->fs->flags & EXT2_FLAG_SWAP_BYTES_READ))
-                       ext2fs_swap_inode_full(scan->fs, 
+                       ext2fs_swap_inode_full(scan->fs,
                                (struct ext2_inode_large *) inode,
-                               (struct ext2_inode_large *) scan->temp_buffer, 
+                               (struct ext2_inode_large *) scan->temp_buffer,
                                0, bufsize);
                else
 #endif
@@ -463,7 +463,7 @@ errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, ext2_ino_t *ino,
 #ifdef EXT2FS_ENABLE_SWAPFS
                if ((scan->fs->flags & EXT2_FLAG_SWAP_BYTES) ||
                    (scan->fs->flags & EXT2_FLAG_SWAP_BYTES_READ))
-                       ext2fs_swap_inode_full(scan->fs, 
+                       ext2fs_swap_inode_full(scan->fs,
                                (struct ext2_inode_large *) inode,
                                (struct ext2_inode_large *) scan->ptr,
                                0, bufsize);
@@ -495,10 +495,10 @@ errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
 errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
                                 struct ext2_inode * inode, int bufsize)
 {
-       unsigned long   group, block, block_nr, offset;
-       char            *ptr;
+       unsigned long   group, block, block_nr, offset;
+       char            *ptr;
        errcode_t       retval;
-       int             clen, i, inodes_per_block, length;
+       int             clen, i, inodes_per_block, length;
        io_channel      io;
 
        EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
@@ -541,7 +541,7 @@ errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
                block = offset >> EXT2_BLOCK_SIZE_BITS(fs->super);
                if (!fs->group_desc[(unsigned)group].bg_inode_table)
                        return EXT2_ET_MISSING_INODE_TABLE;
-               block_nr = fs->group_desc[(unsigned)group].bg_inode_table + 
+               block_nr = fs->group_desc[(unsigned)group].bg_inode_table +
                        block;
                io = fs->io;
        }
@@ -577,8 +577,8 @@ errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
 #ifdef EXT2FS_ENABLE_SWAPFS
        if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
            (fs->flags & EXT2_FLAG_SWAP_BYTES_READ))
-               ext2fs_swap_inode_full(fs, (struct ext2_inode_large *) inode, 
-                                      (struct ext2_inode_large *) inode, 
+               ext2fs_swap_inode_full(fs, (struct ext2_inode_large *) inode,
+                                      (struct ext2_inode_large *) inode,
                                       0, length);
 #endif
 
@@ -587,7 +587,7 @@ errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
                fs->icache->cache_size;
        fs->icache->cache[fs->icache->cache_last].ino = ino;
        fs->icache->cache[fs->icache->cache_last].inode = *inode;
-       
+
        return 0;
 }
 
@@ -629,7 +629,7 @@ errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
                if (retval)
                        return retval;
        }
-               
+
        if (!(fs->flags & EXT2_FLAG_RW))
                return EXT2_ET_RO_FILSYS;
 
@@ -649,13 +649,13 @@ errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
 #ifdef EXT2FS_ENABLE_SWAPFS
        if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
            (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE))
-               ext2fs_swap_inode_full(fs, w_inode, 
-                                      (struct ext2_inode_large *) inode, 
+               ext2fs_swap_inode_full(fs, w_inode,
+                                      (struct ext2_inode_large *) inode,
                                       1, bufsize);
        else
 #endif
                memcpy(w_inode, inode, bufsize);
-       
+
        group = (ino - 1) / EXT2_INODES_PER_GROUP(fs->super);
        offset = ((ino - 1) % EXT2_INODES_PER_GROUP(fs->super)) *
                EXT2_INODE_SIZE(fs->super);
@@ -685,11 +685,11 @@ errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
                        fs->icache->buffer_blk = block_nr;
                }
 
-       
-               memcpy((char *) fs->icache->buffer + (unsigned) offset, 
+
+               memcpy((char *) fs->icache->buffer + (unsigned) offset,
                       ptr, clen);
 
-               retval = io_channel_write_blk(fs->io, block_nr, 1, 
+               retval = io_channel_write_blk(fs->io, block_nr, 1,
                                              fs->icache->buffer);
                if (retval)
                        goto errout;
@@ -699,7 +699,7 @@ errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
                length -= clen;
                block_nr++;
        }
-               
+
        fs->flags |= EXT2_FLAG_CHANGED;
 errout:
        if (w_inode && w_inode != &temp_inode)
@@ -714,7 +714,7 @@ errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
                                       sizeof(struct ext2_inode));
 }
 
-/* 
+/*
  * This function should be called when writing a new inode.  It makes
  * sure that extra part of large inodes is initialized properly.
  */
@@ -722,7 +722,7 @@ errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
                                 struct ext2_inode *inode)
 {
        struct ext2_inode       *buf;
-       int                     size = EXT2_INODE_SIZE(fs->super);
+       int                     size = EXT2_INODE_SIZE(fs->super);
        struct ext2_inode_large *large_inode;
 
        if (size == sizeof(struct ext2_inode))
@@ -735,19 +735,19 @@ errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
        *buf = *inode;
 
        large_inode = (struct ext2_inode_large *) buf;
-       large_inode->i_extra_isize = sizeof(struct ext2_inode_large) - 
+       large_inode->i_extra_isize = sizeof(struct ext2_inode_large) -
                EXT2_GOOD_OLD_INODE_SIZE;
 
        return ext2fs_write_inode_full(fs, ino, buf, size);
 }
 
- 
+
 errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks)
 {
        struct ext2_inode       inode;
        int                     i;
        errcode_t               retval;
-       
+
        EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
        if (ino > fs->super->s_inodes_count)
@@ -769,7 +769,7 @@ errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino)
 {
        struct  ext2_inode      inode;
        errcode_t               retval;
-       
+
        EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
        if (ino > fs->super->s_inodes_count)