Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 816 insertions, 0 deletions

diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
new file mode 100644
index 000000000000..718627ca8b5c
--- /dev/null
+++ b/fs/ufs/inode.c
@@ -0,0 +1,816 @@
+/*
+ *  linux/fs/ufs/inode.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  from
+ *
+ *  linux/fs/ext2/inode.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Goal-directed block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/time.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+#include <linux/buffer_head.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_INODE_DEBUG
+#undef UFS_INODE_DEBUG_MORE
+
+#ifdef UFS_INODE_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t offsets[4])
+{
+        struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
+        int ptrs = uspi->s_apb;
+        int ptrs_bits = uspi->s_apbshift;
+        const long direct_blocks = UFS_NDADDR,
+                indirect_blocks = ptrs,
+                double_blocks = (1 << (ptrs_bits * 2));
+        int n = 0;
+
+
+        UFSD(("ptrs=uspi->s_apb = %d,double_blocks=%d \n",ptrs,double_blocks));
+        if (i_block < 0) {
+                ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0");
+        } else if (i_block < direct_blocks) {
+                offsets[n++] = i_block;
+        } else if ((i_block -= direct_blocks) < indirect_blocks) {
+                offsets[n++] = UFS_IND_BLOCK;
+                offsets[n++] = i_block;
+        } else if ((i_block -= indirect_blocks) < double_blocks) {
+                offsets[n++] = UFS_DIND_BLOCK;
+                offsets[n++] = i_block >> ptrs_bits;
+                offsets[n++] = i_block & (ptrs - 1);
+        } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
+                offsets[n++] = UFS_TIND_BLOCK;
+                offsets[n++] = i_block >> (ptrs_bits * 2);
+                offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
+                offsets[n++] = i_block & (ptrs - 1);
+        } else {
+                ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");
+        }
+        return n;
+}
+
+/*
+ * Returns the location of the fragment from
+ * the begining of the filesystem.
+ */
+
+u64  ufs_frag_map(struct inode *inode, sector_t frag)
+{
+        struct ufs_inode_info *ufsi = UFS_I(inode);
+        struct super_block *sb = inode->i_sb;
+        struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+        u64 mask = (u64) uspi->s_apbmask>>uspi->s_fpbshift;
+        int shift = uspi->s_apbshift-uspi->s_fpbshift;
+        sector_t offsets[4], *p;
+        int depth = ufs_block_to_path(inode, frag >> uspi->s_fpbshift, offsets);
+        u64  ret = 0L;
+        __fs32 block;
+        __fs64 u2_block = 0L;
+        unsigned flags = UFS_SB(sb)->s_flags;
+        u64 temp = 0L;
+
+        UFSD((": frag = %lu  depth = %d\n",frag,depth));
+        UFSD((": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",uspi->s_fpbshift,uspi->s_apbmask,mask));
+
+        if (depth == 0)
+                return 0;
+
+        p = offsets;
+
+        lock_kernel();
+        if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
+                goto ufs2;
+
+        block = ufsi->i_u1.i_data[*p++];
+        if (!block)
+                goto out;
+        while (--depth) {
+                struct buffer_head *bh;
+                sector_t n = *p++;
+
+                bh = sb_bread(sb, uspi->s_sbbase + fs32_to_cpu(sb, block)+(n>>shift));
+                if (!bh)
+                        goto out;
+                block = ((__fs32 *) bh->b_data)[n & mask];
+                brelse (bh);
+                if (!block)
+                        goto out;
+        }
+        ret = (u64) (uspi->s_sbbase + fs32_to_cpu(sb, block) + (frag & uspi->s_fpbmask));
+        goto out;
+ufs2:
+        u2_block = ufsi->i_u1.u2_i_data[*p++];
+        if (!u2_block)
+                goto out;
+
+
+        while (--depth) {
+                struct buffer_head *bh;
+                sector_t n = *p++;
+
+
+                temp = (u64)(uspi->s_sbbase) + fs64_to_cpu(sb, u2_block);
+                bh = sb_bread(sb, temp +(u64) (n>>shift));
+                if (!bh)
+                        goto out;
+                u2_block = ((__fs64 *)bh->b_data)[n & mask];
+                brelse(bh);
+                if (!u2_block)
+                        goto out;
+        }
+        temp = (u64)uspi->s_sbbase + fs64_to_cpu(sb, u2_block);
+        ret = temp + (u64) (frag & uspi->s_fpbmask);
+
+out:
+        unlock_kernel();
+        return ret;
+}
+
+static struct buffer_head * ufs_inode_getfrag (struct inode *inode,
+        unsigned int fragment, unsigned int new_fragment,
+        unsigned int required, int *err, int metadata, long *phys, int *new)
+{
+        struct ufs_inode_info *ufsi = UFS_I(inode);
+        struct super_block * sb;
+        struct ufs_sb_private_info * uspi;
+        struct buffer_head * result;
+        unsigned block, blockoff, lastfrag, lastblock, lastblockoff;
+        unsigned tmp, goal;
+        __fs32 * p, * p2;
+        unsigned flags = 0;
+
+        UFSD(("ENTER, ino %lu, fragment %u, new_fragment %u, required %u\n",
+                inode->i_ino, fragment, new_fragment, required))         
+
+        sb = inode->i_sb;
+        uspi = UFS_SB(sb)->s_uspi;
+
+        flags = UFS_SB(sb)->s_flags;
+        /* TODO : to be done for write support
+        if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
+             goto ufs2;
+         */
+
+        block = ufs_fragstoblks (fragment);
+        blockoff = ufs_fragnum (fragment);
+        p = ufsi->i_u1.i_data + block;
+        goal = 0;
+
+repeat:
+        tmp = fs32_to_cpu(sb, *p);
+        lastfrag = ufsi->i_lastfrag;
+        if (tmp && fragment < lastfrag) {
+                if (metadata) {
+                        result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
+                        if (tmp == fs32_to_cpu(sb, *p)) {
+                                UFSD(("EXIT, result %u\n", tmp + blockoff))
+                                return result;
+                        }
+                        brelse (result);
+                        goto repeat;
+                } else {
+                        *phys = tmp;
+                        return NULL;
+                }
+        }
+
+        lastblock = ufs_fragstoblks (lastfrag);
+        lastblockoff = ufs_fragnum (lastfrag);
+        /*
+         * We will extend file into new block beyond last allocated block
+         */
+        if (lastblock < block) {
+                /*
+                 * We must reallocate last allocated block
+                 */
+                if (lastblockoff) {
+                        p2 = ufsi->i_u1.i_data + lastblock;
+                        tmp = ufs_new_fragments (inode, p2, lastfrag, 
+                                fs32_to_cpu(sb, *p2), uspi->s_fpb - lastblockoff, err);
+                        if (!tmp) {
+                                if (lastfrag != ufsi->i_lastfrag)
+                                        goto repeat;
+                                else
+                                        return NULL;
+                        }
+                        lastfrag = ufsi->i_lastfrag;
+                        
+                }
+                goal = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]) + uspi->s_fpb;
+                tmp = ufs_new_fragments (inode, p, fragment - blockoff, 
+                        goal, required + blockoff, err);
+        }
+        /*
+         * We will extend last allocated block
+         */
+        else if (lastblock == block) {
+                tmp = ufs_new_fragments (inode, p, fragment - (blockoff - lastblockoff),
+                        fs32_to_cpu(sb, *p), required +  (blockoff - lastblockoff), err);
+        }
+        /*
+         * We will allocate new block before last allocated block
+         */
+        else /* (lastblock > block) */ {
+                if (lastblock && (tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock-1])))
+                        goal = tmp + uspi->s_fpb;
+                tmp = ufs_new_fragments (inode, p, fragment - blockoff, 
+                        goal, uspi->s_fpb, err);
+        }
+        if (!tmp) {
+                if ((!blockoff && *p) || 
+                    (blockoff && lastfrag != ufsi->i_lastfrag))
+                        goto repeat;
+                *err = -ENOSPC;
+                return NULL;
+        }
+
+        /* The nullification of framgents done in ufs/balloc.c is
+         * something I don't have the stomache to move into here right
+         * now. -DaveM
+         */
+        if (metadata) {
+                result = sb_getblk(inode->i_sb, tmp + blockoff);
+        } else {
+                *phys = tmp;
+                result = NULL;
+                *err = 0;
+                *new = 1;
+        }
+
+        inode->i_ctime = CURRENT_TIME_SEC;
+        if (IS_SYNC(inode))
+                ufs_sync_inode (inode);
+        mark_inode_dirty(inode);
+        UFSD(("EXIT, result %u\n", tmp + blockoff))
+        return result;
+
+     /* This part : To be implemented ....
+        Required only for writing, not required for READ-ONLY.
+ufs2:
+
+        u2_block = ufs_fragstoblks(fragment);
+        u2_blockoff = ufs_fragnum(fragment);
+        p = ufsi->i_u1.u2_i_data + block;
+        goal = 0;
+
+repeat2:
+        tmp = fs32_to_cpu(sb, *p);
+        lastfrag = ufsi->i_lastfrag;
+
+     */
+}
+
+static struct buffer_head * ufs_block_getfrag (struct inode *inode,
+        struct buffer_head *bh, unsigned int fragment, unsigned int new_fragment, 
+        unsigned int blocksize, int * err, int metadata, long *phys, int *new)
+{
+        struct super_block * sb;
+        struct ufs_sb_private_info * uspi;
+        struct buffer_head * result;
+        unsigned tmp, goal, block, blockoff;
+        __fs32 * p;
+
+        sb = inode->i_sb;
+        uspi = UFS_SB(sb)->s_uspi;
+        block = ufs_fragstoblks (fragment);
+        blockoff = ufs_fragnum (fragment);
+
+        UFSD(("ENTER, ino %lu, fragment %u, new_fragment %u\n", inode->i_ino, fragment, new_fragment))  
+
+        result = NULL;
+        if (!bh)
+                goto out;
+        if (!buffer_uptodate(bh)) {
+                ll_rw_block (READ, 1, &bh);
+                wait_on_buffer (bh);
+                if (!buffer_uptodate(bh))
+                        goto out;
+        }
+
+        p = (__fs32 *) bh->b_data + block;
+repeat:
+        tmp = fs32_to_cpu(sb, *p);
+        if (tmp) {
+                if (metadata) {
+                        result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
+                        if (tmp == fs32_to_cpu(sb, *p))
+                                goto out;
+                        brelse (result);
+                        goto repeat;
+                } else {
+                        *phys = tmp;
+                        goto out;
+                }
+        }
+
+        if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1]) + uspi->s_fpb))
+                goal = tmp + uspi->s_fpb;
+        else
+                goal = bh->b_blocknr + uspi->s_fpb;
+        tmp = ufs_new_fragments (inode, p, ufs_blknum(new_fragment), goal, uspi->s_fpb, err);
+        if (!tmp) {
+                if (fs32_to_cpu(sb, *p))
+                        goto repeat;
+                goto out;
+        }               
+
+        /* The nullification of framgents done in ufs/balloc.c is
+         * something I don't have the stomache to move into here right
+         * now. -DaveM
+         */
+        if (metadata) {
+                result = sb_getblk(sb, tmp + blockoff);
+        } else {
+                *phys = tmp;
+                *new = 1;
+        }
+
+        mark_buffer_dirty(bh);
+        if (IS_SYNC(inode))
+                sync_dirty_buffer(bh);
+        inode->i_ctime = CURRENT_TIME_SEC;
+        mark_inode_dirty(inode);
+out:
+        brelse (bh);
+        UFSD(("EXIT, result %u\n", tmp + blockoff))
+        return result;
+}
+
+/*
+ * This function gets the block which contains the fragment.
+ */
+
+static int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create)
+{
+        struct super_block * sb = inode->i_sb;
+        struct ufs_sb_private_info * uspi = UFS_SB(sb)->s_uspi;
+        struct buffer_head * bh;
+        int ret, err, new;
+        unsigned long ptr,phys;
+        u64 phys64 = 0;
+        
+        if (!create) {
+                phys64 = ufs_frag_map(inode, fragment);
+                UFSD(("phys64 = %lu \n",phys64));
+                if (phys64)
+                        map_bh(bh_result, sb, phys64);
+                return 0;
+        }
+
+        /* This code entered only while writing ....? */
+
+        err = -EIO;
+        new = 0;
+        ret = 0;
+        bh = NULL;
+
+        lock_kernel();
+
+        UFSD(("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment))
+        if (fragment < 0)
+                goto abort_negative;
+        if (fragment >
+            ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb)
+             << uspi->s_fpbshift))
+                goto abort_too_big;
+
+        err = 0;
+        ptr = fragment;
+          
+        /*
+         * ok, these macros clean the logic up a bit and make
+         * it much more readable:
+         */
+#define GET_INODE_DATABLOCK(x) \
+                ufs_inode_getfrag(inode, x, fragment, 1, &err, 0, &phys, &new)
+#define GET_INODE_PTR(x) \
+                ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, 1, NULL, NULL)
+#define GET_INDIRECT_DATABLOCK(x) \
+                ufs_block_getfrag(inode, bh, x, fragment, sb->s_blocksize, \
+                                  &err, 0, &phys, &new);
+#define GET_INDIRECT_PTR(x) \
+                ufs_block_getfrag(inode, bh, x, fragment, sb->s_blocksize, \
+                                  &err, 1, NULL, NULL);
+
+        if (ptr < UFS_NDIR_FRAGMENT) {
+                bh = GET_INODE_DATABLOCK(ptr);
+                goto out;
+        }
+        ptr -= UFS_NDIR_FRAGMENT;
+        if (ptr < (1 << (uspi->s_apbshift + uspi->s_fpbshift))) {
+                bh = GET_INODE_PTR(UFS_IND_FRAGMENT + (ptr >> uspi->s_apbshift));
+                goto get_indirect;
+        }
+        ptr -= 1 << (uspi->s_apbshift + uspi->s_fpbshift);
+        if (ptr < (1 << (uspi->s_2apbshift + uspi->s_fpbshift))) {
+                bh = GET_INODE_PTR(UFS_DIND_FRAGMENT + (ptr >> uspi->s_2apbshift));
+                goto get_double;
+        }
+        ptr -= 1 << (uspi->s_2apbshift + uspi->s_fpbshift);
+        bh = GET_INODE_PTR(UFS_TIND_FRAGMENT + (ptr >> uspi->s_3apbshift));
+        bh = GET_INDIRECT_PTR((ptr >> uspi->s_2apbshift) & uspi->s_apbmask);
+get_double:
+        bh = GET_INDIRECT_PTR((ptr >> uspi->s_apbshift) & uspi->s_apbmask);
+get_indirect:
+        bh = GET_INDIRECT_DATABLOCK(ptr & uspi->s_apbmask);
+
+#undef GET_INODE_DATABLOCK
+#undef GET_INODE_PTR
+#undef GET_INDIRECT_DATABLOCK
+#undef GET_INDIRECT_PTR
+
+out:
+        if (err)
+                goto abort;
+        if (new)
+                set_buffer_new(bh_result);
+        map_bh(bh_result, sb, phys);
+abort:
+        unlock_kernel();
+        return err;
+
+abort_negative:
+        ufs_warning(sb, "ufs_get_block", "block < 0");
+        goto abort;
+
+abort_too_big:
+        ufs_warning(sb, "ufs_get_block", "block > big");
+        goto abort;
+}
+
+struct buffer_head *ufs_getfrag(struct inode *inode, unsigned int fragment,
+                                int create, int *err)
+{
+        struct buffer_head dummy;
+        int error;
+
+        dummy.b_state = 0;
+        dummy.b_blocknr = -1000;
+        error = ufs_getfrag_block(inode, fragment, &dummy, create);
+        *err = error;
+        if (!error && buffer_mapped(&dummy)) {
+                struct buffer_head *bh;
+                bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
+                if (buffer_new(&dummy)) {
+                        memset(bh->b_data, 0, inode->i_sb->s_blocksize);
+                        set_buffer_uptodate(bh);
+                        mark_buffer_dirty(bh);
+                }
+                return bh;
+        }
+        return NULL;
+}
+
+struct buffer_head * ufs_bread (struct inode * inode, unsigned fragment,
+        int create, int * err)
+{
+        struct buffer_head * bh;
+
+        UFSD(("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment))
+        bh = ufs_getfrag (inode, fragment, create, err);
+        if (!bh || buffer_uptodate(bh))                 
+                return bh;
+        ll_rw_block (READ, 1, &bh);
+        wait_on_buffer (bh);
+        if (buffer_uptodate(bh))
+                return bh;
+        brelse (bh);
+        *err = -EIO;
+        return NULL;
+}
+
+static int ufs_writepage(struct page *page, struct writeback_control *wbc)
+{
+        return block_write_full_page(page,ufs_getfrag_block,wbc);
+}
+static int ufs_readpage(struct file *file, struct page *page)
+{
+        return block_read_full_page(page,ufs_getfrag_block);
+}
+static int ufs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+        return block_prepare_write(page,from,to,ufs_getfrag_block);
+}
+static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
+{
+        return generic_block_bmap(mapping,block,ufs_getfrag_block);
+}
+struct address_space_operations ufs_aops = {
+        .readpage = ufs_readpage,
+        .writepage = ufs_writepage,
+        .sync_page = block_sync_page,
+        .prepare_write = ufs_prepare_write,
+        .commit_write = generic_commit_write,
+        .bmap = ufs_bmap
+};
+
+void ufs_read_inode (struct inode * inode)
+{
+        struct ufs_inode_info *ufsi = UFS_I(inode);
+        struct super_block * sb;
+        struct ufs_sb_private_info * uspi;
+        struct ufs_inode * ufs_inode;   
+        struct ufs2_inode *ufs2_inode;
+        struct buffer_head * bh;
+        mode_t mode;
+        unsigned i;
+        unsigned flags;
+        
+        UFSD(("ENTER, ino %lu\n", inode->i_ino))
+        
+        sb = inode->i_sb;
+        uspi = UFS_SB(sb)->s_uspi;
+        flags = UFS_SB(sb)->s_flags;
+
+        if (inode->i_ino < UFS_ROOTINO || 
+            inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
+                ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
+                goto bad_inode;
+        }
+        
+        bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
+        if (!bh) {
+                ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
+                goto bad_inode;
+        }
+        if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
+                goto ufs2_inode;
+
+        ufs_inode = (struct ufs_inode *) (bh->b_data + sizeof(struct ufs_inode) * ufs_inotofsbo(inode->i_ino));
+
+        /*
+         * Copy data to the in-core inode.
+         */
+        inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
+        inode->i_nlink = fs16_to_cpu(sb, ufs_inode->ui_nlink);
+        if (inode->i_nlink == 0)
+                ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
+        
+        /*
+         * Linux now has 32-bit uid and gid, so we can support EFT.
+         */
+        inode->i_uid = ufs_get_inode_uid(sb, ufs_inode);
+        inode->i_gid = ufs_get_inode_gid(sb, ufs_inode);
+
+        inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);
+        inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec);
+        inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec);
+        inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);
+        inode->i_mtime.tv_nsec = 0;
+        inode->i_atime.tv_nsec = 0;
+        inode->i_ctime.tv_nsec = 0;
+        inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
+        inode->i_blksize = PAGE_SIZE;   /* This is the optimal IO size (for stat) */
+        inode->i_version++;
+        ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
+        ufsi->i_gen = fs32_to_cpu(sb, ufs_inode->ui_gen);
+        ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
+        ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
+        ufsi->i_lastfrag = (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
+        
+        if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
+                for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
+                        ufsi->i_u1.i_data[i] = ufs_inode->ui_u2.ui_addr.ui_db[i];
+        }
+        else {
+                for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
+                        ufsi->i_u1.i_symlink[i] = ufs_inode->ui_u2.ui_symlink[i];
+        }
+        ufsi->i_osync = 0;
+
+        if (S_ISREG(inode->i_mode)) {
+                inode->i_op = &ufs_file_inode_operations;
+                inode->i_fop = &ufs_file_operations;
+                inode->i_mapping->a_ops = &ufs_aops;
+        } else if (S_ISDIR(inode->i_mode)) {
+                inode->i_op = &ufs_dir_inode_operations;
+                inode->i_fop = &ufs_dir_operations;
+        } else if (S_ISLNK(inode->i_mode)) {
+                if (!inode->i_blocks)
+                        inode->i_op = &ufs_fast_symlink_inode_operations;
+                else {
+                        inode->i_op = &page_symlink_inode_operations;
+                        inode->i_mapping->a_ops = &ufs_aops;
+                }
+        } else
+                init_special_inode(inode, inode->i_mode,
+                        ufs_get_inode_dev(sb, ufsi));
+
+        brelse (bh);
+
+        UFSD(("EXIT\n"))
+        return;
+
+bad_inode:
+        make_bad_inode(inode);
+        return;
+
+ufs2_inode :
+        UFSD(("Reading ufs2 inode, ino %lu\n", inode->i_ino))
+
+        ufs2_inode = (struct ufs2_inode *)(bh->b_data + sizeof(struct ufs2_inode) * ufs_inotofsbo(inode->i_ino));
+
+        /*
+         * Copy data to the in-core inode.
+         */
+        inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
+        inode->i_nlink = fs16_to_cpu(sb, ufs2_inode->ui_nlink);
+        if (inode->i_nlink == 0)
+                ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
+
+        /*
+         * Linux now has 32-bit uid and gid, so we can support EFT.
+         */
+        inode->i_uid = fs32_to_cpu(sb, ufs2_inode->ui_uid);
+        inode->i_gid = fs32_to_cpu(sb, ufs2_inode->ui_gid);
+
+        inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);
+        inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_atime.tv_sec);
+        inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_ctime.tv_sec);
+        inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_mtime.tv_sec);
+        inode->i_mtime.tv_nsec = 0;
+        inode->i_atime.tv_nsec = 0;
+        inode->i_ctime.tv_nsec = 0;
+        inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
+        inode->i_blksize = PAGE_SIZE; /*This is the optimal IO size(for stat)*/
+
+        inode->i_version++;
+        ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
+        ufsi->i_gen = fs32_to_cpu(sb, ufs2_inode->ui_gen);
+        /*
+        ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
+        ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
+        */
+        ufsi->i_lastfrag= (inode->i_size + uspi->s_fsize- 1) >> uspi->s_fshift;
+
+        if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
+                for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
+                        ufsi->i_u1.u2_i_data[i] =
+                                ufs2_inode->ui_u2.ui_addr.ui_db[i];
+        }
+        else {
+                for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
+                        ufsi->i_u1.i_symlink[i] = ufs2_inode->ui_u2.ui_symlink[i];
+        }
+        ufsi->i_osync = 0;
+
+        if (S_ISREG(inode->i_mode)) {
+                inode->i_op = &ufs_file_inode_operations;
+                inode->i_fop = &ufs_file_operations;
+                inode->i_mapping->a_ops = &ufs_aops;
+        } else if (S_ISDIR(inode->i_mode)) {
+                inode->i_op = &ufs_dir_inode_operations;
+                inode->i_fop = &ufs_dir_operations;
+        } else if (S_ISLNK(inode->i_mode)) {
+                if (!inode->i_blocks)
+                        inode->i_op = &ufs_fast_symlink_inode_operations;
+                else {
+                        inode->i_op = &page_symlink_inode_operations;
+                        inode->i_mapping->a_ops = &ufs_aops;
+                }
+        } else   /* TODO  : here ...*/
+                init_special_inode(inode, inode->i_mode,
+                        ufs_get_inode_dev(sb, ufsi));
+
+        brelse(bh);
+
+        UFSD(("EXIT\n"))
+        return;
+}
+
+static int ufs_update_inode(struct inode * inode, int do_sync)
+{
+        struct ufs_inode_info *ufsi = UFS_I(inode);
+        struct super_block * sb;
+        struct ufs_sb_private_info * uspi;
+        struct buffer_head * bh;
+        struct ufs_inode * ufs_inode;
+        unsigned i;
+        unsigned flags;
+
+        UFSD(("ENTER, ino %lu\n", inode->i_ino))
+
+        sb = inode->i_sb;
+        uspi = UFS_SB(sb)->s_uspi;
+        flags = UFS_SB(sb)->s_flags;
+
+        if (inode->i_ino < UFS_ROOTINO || 
+            inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
+                ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
+                return -1;
+        }
+
+        bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
+        if (!bh) {
+                ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
+                return -1;
+        }
+        ufs_inode = (struct ufs_inode *) (bh->b_data + ufs_inotofsbo(inode->i_ino) * sizeof(struct ufs_inode));
+
+        ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
+        ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
+
+        ufs_set_inode_uid(sb, ufs_inode, inode->i_uid);
+        ufs_set_inode_gid(sb, ufs_inode, inode->i_gid);
+                
+        ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
+        ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);
+        ufs_inode->ui_atime.tv_usec = 0;
+        ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec);
+        ufs_inode->ui_ctime.tv_usec = 0;
+        ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);
+        ufs_inode->ui_mtime.tv_usec = 0;
+        ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
+        ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
+        ufs_inode->ui_gen = cpu_to_fs32(sb, ufsi->i_gen);
+
+        if ((flags & UFS_UID_MASK) == UFS_UID_EFT) {
+                ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
+                ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
+        }
+
+        if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
+                /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
+                ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
+        } else if (inode->i_blocks) {
+                for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
+                        ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.i_data[i];
+        }
+        else {
+                for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
+                        ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
+        }
+
+        if (!inode->i_nlink)
+                memset (ufs_inode, 0, sizeof(struct ufs_inode));
+                
+        mark_buffer_dirty(bh);
+        if (do_sync)
+                sync_dirty_buffer(bh);
+        brelse (bh);
+        
+        UFSD(("EXIT\n"))
+        return 0;
+}
+
+int ufs_write_inode (struct inode * inode, int wait)
+{
+        int ret;
+        lock_kernel();
+        ret = ufs_update_inode (inode, wait);
+        unlock_kernel();
+        return ret;
+}
+
+int ufs_sync_inode (struct inode *inode)
+{
+        return ufs_update_inode (inode, 1);
+}
+
+void ufs_delete_inode (struct inode * inode)
+{
+        /*UFS_I(inode)->i_dtime = CURRENT_TIME;*/
+        lock_kernel();
+        mark_inode_dirty(inode);
+        ufs_update_inode(inode, IS_SYNC(inode));
+        inode->i_size = 0;
+        if (inode->i_blocks)
+                ufs_truncate (inode);
+        ufs_free_inode (inode);
+        unlock_kernel();
+}