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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/minix/namei.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/minix/namei.c')
-rw-r--r--ANDROID_3.4.5/fs/minix/namei.c257
1 files changed, 0 insertions, 257 deletions
diff --git a/ANDROID_3.4.5/fs/minix/namei.c b/ANDROID_3.4.5/fs/minix/namei.c
deleted file mode 100644
index 2d0ee178..00000000
--- a/ANDROID_3.4.5/fs/minix/namei.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * linux/fs/minix/namei.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
-
-#include "minix.h"
-
-static int add_nondir(struct dentry *dentry, struct inode *inode)
-{
- int err = minix_add_link(dentry, inode);
- if (!err) {
- d_instantiate(dentry, inode);
- return 0;
- }
- inode_dec_link_count(inode);
- iput(inode);
- return err;
-}
-
-static struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
-{
- struct inode * inode = NULL;
- ino_t ino;
-
- if (dentry->d_name.len > minix_sb(dir->i_sb)->s_namelen)
- return ERR_PTR(-ENAMETOOLONG);
-
- ino = minix_inode_by_name(dentry);
- if (ino) {
- inode = minix_iget(dir->i_sb, ino);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
- }
- d_add(dentry, inode);
- return NULL;
-}
-
-static int minix_mknod(struct inode * dir, struct dentry *dentry, umode_t mode, dev_t rdev)
-{
- int error;
- struct inode *inode;
-
- if (!old_valid_dev(rdev))
- return -EINVAL;
-
- inode = minix_new_inode(dir, mode, &error);
-
- if (inode) {
- minix_set_inode(inode, rdev);
- mark_inode_dirty(inode);
- error = add_nondir(dentry, inode);
- }
- return error;
-}
-
-static int minix_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- struct nameidata *nd)
-{
- return minix_mknod(dir, dentry, mode, 0);
-}
-
-static int minix_symlink(struct inode * dir, struct dentry *dentry,
- const char * symname)
-{
- int err = -ENAMETOOLONG;
- int i = strlen(symname)+1;
- struct inode * inode;
-
- if (i > dir->i_sb->s_blocksize)
- goto out;
-
- inode = minix_new_inode(dir, S_IFLNK | 0777, &err);
- if (!inode)
- goto out;
-
- minix_set_inode(inode, 0);
- err = page_symlink(inode, symname, i);
- if (err)
- goto out_fail;
-
- err = add_nondir(dentry, inode);
-out:
- return err;
-
-out_fail:
- inode_dec_link_count(inode);
- iput(inode);
- goto out;
-}
-
-static int minix_link(struct dentry * old_dentry, struct inode * dir,
- struct dentry *dentry)
-{
- struct inode *inode = old_dentry->d_inode;
-
- inode->i_ctime = CURRENT_TIME_SEC;
- inode_inc_link_count(inode);
- ihold(inode);
- return add_nondir(dentry, inode);
-}
-
-static int minix_mkdir(struct inode * dir, struct dentry *dentry, umode_t mode)
-{
- struct inode * inode;
- int err;
-
- inode_inc_link_count(dir);
-
- inode = minix_new_inode(dir, S_IFDIR | mode, &err);
- if (!inode)
- goto out_dir;
-
- minix_set_inode(inode, 0);
-
- inode_inc_link_count(inode);
-
- err = minix_make_empty(inode, dir);
- if (err)
- goto out_fail;
-
- err = minix_add_link(dentry, inode);
- if (err)
- goto out_fail;
-
- d_instantiate(dentry, inode);
-out:
- return err;
-
-out_fail:
- inode_dec_link_count(inode);
- inode_dec_link_count(inode);
- iput(inode);
-out_dir:
- inode_dec_link_count(dir);
- goto out;
-}
-
-static int minix_unlink(struct inode * dir, struct dentry *dentry)
-{
- int err = -ENOENT;
- struct inode * inode = dentry->d_inode;
- struct page * page;
- struct minix_dir_entry * de;
-
- de = minix_find_entry(dentry, &page);
- if (!de)
- goto end_unlink;
-
- err = minix_delete_entry(de, page);
- if (err)
- goto end_unlink;
-
- inode->i_ctime = dir->i_ctime;
- inode_dec_link_count(inode);
-end_unlink:
- return err;
-}
-
-static int minix_rmdir(struct inode * dir, struct dentry *dentry)
-{
- struct inode * inode = dentry->d_inode;
- int err = -ENOTEMPTY;
-
- if (minix_empty_dir(inode)) {
- err = minix_unlink(dir, dentry);
- if (!err) {
- inode_dec_link_count(dir);
- inode_dec_link_count(inode);
- }
- }
- return err;
-}
-
-static int minix_rename(struct inode * old_dir, struct dentry *old_dentry,
- struct inode * new_dir, struct dentry *new_dentry)
-{
- struct inode * old_inode = old_dentry->d_inode;
- struct inode * new_inode = new_dentry->d_inode;
- struct page * dir_page = NULL;
- struct minix_dir_entry * dir_de = NULL;
- struct page * old_page;
- struct minix_dir_entry * old_de;
- int err = -ENOENT;
-
- old_de = minix_find_entry(old_dentry, &old_page);
- if (!old_de)
- goto out;
-
- if (S_ISDIR(old_inode->i_mode)) {
- err = -EIO;
- dir_de = minix_dotdot(old_inode, &dir_page);
- if (!dir_de)
- goto out_old;
- }
-
- if (new_inode) {
- struct page * new_page;
- struct minix_dir_entry * new_de;
-
- err = -ENOTEMPTY;
- if (dir_de && !minix_empty_dir(new_inode))
- goto out_dir;
-
- err = -ENOENT;
- new_de = minix_find_entry(new_dentry, &new_page);
- if (!new_de)
- goto out_dir;
- minix_set_link(new_de, new_page, old_inode);
- new_inode->i_ctime = CURRENT_TIME_SEC;
- if (dir_de)
- drop_nlink(new_inode);
- inode_dec_link_count(new_inode);
- } else {
- err = minix_add_link(new_dentry, old_inode);
- if (err)
- goto out_dir;
- if (dir_de)
- inode_inc_link_count(new_dir);
- }
-
- minix_delete_entry(old_de, old_page);
- mark_inode_dirty(old_inode);
-
- if (dir_de) {
- minix_set_link(dir_de, dir_page, new_dir);
- inode_dec_link_count(old_dir);
- }
- return 0;
-
-out_dir:
- if (dir_de) {
- kunmap(dir_page);
- page_cache_release(dir_page);
- }
-out_old:
- kunmap(old_page);
- page_cache_release(old_page);
-out:
- return err;
-}
-
-/*
- * directories can handle most operations...
- */
-const struct inode_operations minix_dir_inode_operations = {
- .create = minix_create,
- .lookup = minix_lookup,
- .link = minix_link,
- .unlink = minix_unlink,
- .symlink = minix_symlink,
- .mkdir = minix_mkdir,
- .rmdir = minix_rmdir,
- .mknod = minix_mknod,
- .rename = minix_rename,
- .getattr = minix_getattr,
-};