diff options
Diffstat (limited to 'fs/hpfs/namei.c')
-rw-r--r-- | fs/hpfs/namei.c | 75 |
1 files changed, 39 insertions, 36 deletions
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c index 82b9c4b..11c2b40 100644 --- a/fs/hpfs/namei.c +++ b/fs/hpfs/namei.c @@ -11,7 +11,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) { - const char *name = dentry->d_name.name; + const unsigned char *name = dentry->d_name.name; unsigned len = dentry->d_name.len; struct quad_buffer_head qbh0; struct buffer_head *bh; @@ -24,7 +24,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) int r; struct hpfs_dirent dee; int err; - if ((err = hpfs_chk_name((char *)name, &len))) return err==-ENOENT ? -EINVAL : err; + if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err; lock_kernel(); err = -ENOSPC; fnode = hpfs_alloc_fnode(dir->i_sb, hpfs_i(dir)->i_dno, &fno, &bh); @@ -62,7 +62,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) result->i_mode &= ~0222; mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee, 0); if (r == 1) goto bail3; if (r == -1) { @@ -121,7 +121,7 @@ bail: static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd) { - const char *name = dentry->d_name.name; + const unsigned char *name = dentry->d_name.name; unsigned len = dentry->d_name.len; struct inode *result = NULL; struct buffer_head *bh; @@ -130,7 +130,7 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc int r; struct hpfs_dirent dee; int err; - if ((err = hpfs_chk_name((char *)name, &len))) + if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err; lock_kernel(); err = -ENOSPC; @@ -155,7 +155,7 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc result->i_op = &hpfs_file_iops; result->i_fop = &hpfs_file_ops; result->i_nlink = 1; - hpfs_decide_conv(result, (char *)name, len); + hpfs_decide_conv(result, name, len); hpfs_i(result)->i_parent_dir = dir->i_ino; result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); result->i_ctime.tv_nsec = 0; @@ -170,7 +170,7 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc hpfs_i(result)->mmu_private = 0; mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee, 0); if (r == 1) goto bail2; if (r == -1) { @@ -211,7 +211,7 @@ bail: static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) { - const char *name = dentry->d_name.name; + const unsigned char *name = dentry->d_name.name; unsigned len = dentry->d_name.len; struct buffer_head *bh; struct fnode *fnode; @@ -220,7 +220,7 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t struct hpfs_dirent dee; struct inode *result = NULL; int err; - if ((err = hpfs_chk_name((char *)name, &len))) return err==-ENOENT ? -EINVAL : err; + if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err; if (hpfs_sb(dir->i_sb)->sb_eas < 2) return -EPERM; if (!new_valid_dev(rdev)) return -EINVAL; @@ -256,7 +256,7 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t init_special_inode(result, mode, rdev); mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee, 0); if (r == 1) goto bail2; if (r == -1) { @@ -289,7 +289,7 @@ bail: static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *symlink) { - const char *name = dentry->d_name.name; + const unsigned char *name = dentry->d_name.name; unsigned len = dentry->d_name.len; struct buffer_head *bh; struct fnode *fnode; @@ -298,7 +298,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy struct hpfs_dirent dee; struct inode *result; int err; - if ((err = hpfs_chk_name((char *)name, &len))) return err==-ENOENT ? -EINVAL : err; + if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err; lock_kernel(); if (hpfs_sb(dir->i_sb)->sb_eas < 2) { unlock_kernel(); @@ -335,7 +335,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy result->i_data.a_ops = &hpfs_symlink_aops; mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee, 0); if (r == 1) goto bail2; if (r == -1) { @@ -345,7 +345,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy fnode->len = len; memcpy(fnode->name, name, len > 15 ? 15 : len); fnode->up = dir->i_ino; - hpfs_set_ea(result, fnode, "SYMLINK", (char *)symlink, strlen(symlink)); + hpfs_set_ea(result, fnode, "SYMLINK", symlink, strlen(symlink)); mark_buffer_dirty(bh); brelse(bh); @@ -369,7 +369,7 @@ bail: static int hpfs_unlink(struct inode *dir, struct dentry *dentry) { - const char *name = dentry->d_name.name; + const unsigned char *name = dentry->d_name.name; unsigned len = dentry->d_name.len; struct quad_buffer_head qbh; struct hpfs_dirent *de; @@ -381,12 +381,12 @@ static int hpfs_unlink(struct inode *dir, struct dentry *dentry) int err; lock_kernel(); - hpfs_adjust_length((char *)name, &len); + hpfs_adjust_length(name, &len); again: mutex_lock(&hpfs_i(inode)->i_parent_mutex); mutex_lock(&hpfs_i(dir)->i_mutex); err = -ENOENT; - de = map_dirent(dir, hpfs_i(dir)->i_dno, (char *)name, len, &dno, &qbh); + de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh); if (!de) goto out; @@ -413,22 +413,25 @@ again: mutex_unlock(&hpfs_i(dir)->i_mutex); mutex_unlock(&hpfs_i(inode)->i_parent_mutex); - d_drop(dentry); - spin_lock(&dentry->d_lock); - if (atomic_read(&dentry->d_count) > 1 || - generic_permission(inode, MAY_WRITE, NULL) || + dentry_unhash(dentry); + if (!d_unhashed(dentry)) { + dput(dentry); + unlock_kernel(); + return -ENOSPC; + } + if (generic_permission(inode, MAY_WRITE, NULL) || !S_ISREG(inode->i_mode) || get_write_access(inode)) { - spin_unlock(&dentry->d_lock); d_rehash(dentry); + dput(dentry); } else { struct iattr newattrs; - spin_unlock(&dentry->d_lock); /*printk("HPFS: truncating file before delete.\n");*/ newattrs.ia_size = 0; newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME; err = notify_change(dentry, &newattrs); put_write_access(inode); + dput(dentry); if (!err) goto again; } @@ -451,7 +454,7 @@ out: static int hpfs_rmdir(struct inode *dir, struct dentry *dentry) { - const char *name = dentry->d_name.name; + const unsigned char *name = dentry->d_name.name; unsigned len = dentry->d_name.len; struct quad_buffer_head qbh; struct hpfs_dirent *de; @@ -462,12 +465,12 @@ static int hpfs_rmdir(struct inode *dir, struct dentry *dentry) int err; int r; - hpfs_adjust_length((char *)name, &len); + hpfs_adjust_length(name, &len); lock_kernel(); mutex_lock(&hpfs_i(inode)->i_parent_mutex); mutex_lock(&hpfs_i(dir)->i_mutex); err = -ENOENT; - de = map_dirent(dir, hpfs_i(dir)->i_dno, (char *)name, len, &dno, &qbh); + de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh); if (!de) goto out; @@ -546,10 +549,10 @@ const struct address_space_operations hpfs_symlink_aops = { static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { - char *old_name = (char *)old_dentry->d_name.name; - int old_len = old_dentry->d_name.len; - char *new_name = (char *)new_dentry->d_name.name; - int new_len = new_dentry->d_name.len; + const unsigned char *old_name = old_dentry->d_name.name; + unsigned old_len = old_dentry->d_name.len; + const unsigned char *new_name = new_dentry->d_name.name; + unsigned new_len = new_dentry->d_name.len; struct inode *i = old_dentry->d_inode; struct inode *new_inode = new_dentry->d_inode; struct quad_buffer_head qbh, qbh1; @@ -560,9 +563,9 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct buffer_head *bh; struct fnode *fnode; int err; - if ((err = hpfs_chk_name((char *)new_name, &new_len))) return err; + if ((err = hpfs_chk_name(new_name, &new_len))) return err; err = 0; - hpfs_adjust_length((char *)old_name, &old_len); + hpfs_adjust_length(old_name, &old_len); lock_kernel(); /* order doesn't matter, due to VFS exclusion */ @@ -579,7 +582,7 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, goto end1; } - if (!(dep = map_dirent(old_dir, hpfs_i(old_dir)->i_dno, (char *)old_name, old_len, &dno, &qbh))) { + if (!(dep = map_dirent(old_dir, hpfs_i(old_dir)->i_dno, old_name, old_len, &dno, &qbh))) { hpfs_error(i->i_sb, "lookup succeeded but map dirent failed"); err = -ENOENT; goto end1; @@ -590,7 +593,7 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (new_inode) { int r; if ((r = hpfs_remove_dirent(old_dir, dno, dep, &qbh, 1)) != 2) { - if ((nde = map_dirent(new_dir, hpfs_i(new_dir)->i_dno, (char *)new_name, new_len, NULL, &qbh1))) { + if ((nde = map_dirent(new_dir, hpfs_i(new_dir)->i_dno, new_name, new_len, NULL, &qbh1))) { clear_nlink(new_inode); copy_de(nde, &de); memcpy(nde->name, new_name, new_len); @@ -618,7 +621,7 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, } if (new_dir == old_dir) - if (!(dep = map_dirent(old_dir, hpfs_i(old_dir)->i_dno, (char *)old_name, old_len, &dno, &qbh))) { + if (!(dep = map_dirent(old_dir, hpfs_i(old_dir)->i_dno, old_name, old_len, &dno, &qbh))) { hpfs_unlock_creation(i->i_sb); hpfs_error(i->i_sb, "lookup succeeded but map dirent failed at #2"); err = -ENOENT; @@ -648,7 +651,7 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, brelse(bh); } hpfs_i(i)->i_conv = hpfs_sb(i->i_sb)->sb_conv; - hpfs_decide_conv(i, (char *)new_name, new_len); + hpfs_decide_conv(i, new_name, new_len); end1: if (old_dir != new_dir) mutex_unlock(&hpfs_i(new_dir)->i_mutex); |