From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- ANDROID_3.4.5/fs/udf/dir.c | 210 --------------------------------------------- 1 file changed, 210 deletions(-) delete mode 100644 ANDROID_3.4.5/fs/udf/dir.c (limited to 'ANDROID_3.4.5/fs/udf/dir.c') diff --git a/ANDROID_3.4.5/fs/udf/dir.c b/ANDROID_3.4.5/fs/udf/dir.c deleted file mode 100644 index eb8bfe2b..00000000 --- a/ANDROID_3.4.5/fs/udf/dir.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * dir.c - * - * PURPOSE - * Directory handling routines for the OSTA-UDF(tm) filesystem. - * - * COPYRIGHT - * This file is distributed under the terms of the GNU General Public - * License (GPL). Copies of the GPL can be obtained from: - * ftp://prep.ai.mit.edu/pub/gnu/GPL - * Each contributing author retains all rights to their own work. - * - * (C) 1998-2004 Ben Fennema - * - * HISTORY - * - * 10/05/98 dgb Split directory operations into its own file - * Implemented directory reads via do_udf_readdir - * 10/06/98 Made directory operations work! - * 11/17/98 Rewrote directory to support ICBTAG_FLAG_AD_LONG - * 11/25/98 blf Rewrote directory handling (readdir+lookup) to support reading - * across blocks. - * 12/12/98 Split out the lookup code to namei.c. bulk of directory - * code now in directory.c:udf_fileident_read. - */ - -#include "udfdecl.h" - -#include -#include -#include -#include -#include - -#include "udf_i.h" -#include "udf_sb.h" - -static int do_udf_readdir(struct inode *dir, struct file *filp, - filldir_t filldir, void *dirent) -{ - struct udf_fileident_bh fibh = { .sbh = NULL, .ebh = NULL}; - struct fileIdentDesc *fi = NULL; - struct fileIdentDesc cfi; - int block, iblock; - loff_t nf_pos = (filp->f_pos - 1) << 2; - int flen; - unsigned char *fname = NULL; - unsigned char *nameptr; - uint16_t liu; - uint8_t lfi; - loff_t size = udf_ext0_offset(dir) + dir->i_size; - struct buffer_head *tmp, *bha[16]; - struct kernel_lb_addr eloc; - uint32_t elen; - sector_t offset; - int i, num, ret = 0; - unsigned int dt_type; - struct extent_position epos = { NULL, 0, {0, 0} }; - struct udf_inode_info *iinfo; - - if (nf_pos >= size) - goto out; - - fname = kmalloc(UDF_NAME_LEN, GFP_NOFS); - if (!fname) { - ret = -ENOMEM; - goto out; - } - - if (nf_pos == 0) - nf_pos = udf_ext0_offset(dir); - - fibh.soffset = fibh.eoffset = nf_pos & (dir->i_sb->s_blocksize - 1); - iinfo = UDF_I(dir); - if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) { - if (inode_bmap(dir, nf_pos >> dir->i_sb->s_blocksize_bits, - &epos, &eloc, &elen, &offset) - != (EXT_RECORDED_ALLOCATED >> 30)) { - ret = -ENOENT; - goto out; - } - block = udf_get_lb_pblock(dir->i_sb, &eloc, offset); - if ((++offset << dir->i_sb->s_blocksize_bits) < elen) { - if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT) - epos.offset -= sizeof(struct short_ad); - else if (iinfo->i_alloc_type == - ICBTAG_FLAG_AD_LONG) - epos.offset -= sizeof(struct long_ad); - } else { - offset = 0; - } - - if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) { - ret = -EIO; - goto out; - } - - if (!(offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9)) - 1))) { - i = 16 >> (dir->i_sb->s_blocksize_bits - 9); - if (i + offset > (elen >> dir->i_sb->s_blocksize_bits)) - i = (elen >> dir->i_sb->s_blocksize_bits) - offset; - for (num = 0; i > 0; i--) { - block = udf_get_lb_pblock(dir->i_sb, &eloc, offset + i); - tmp = udf_tgetblk(dir->i_sb, block); - if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp)) - bha[num++] = tmp; - else - brelse(tmp); - } - if (num) { - ll_rw_block(READA, num, bha); - for (i = 0; i < num; i++) - brelse(bha[i]); - } - } - } - - while (nf_pos < size) { - filp->f_pos = (nf_pos >> 2) + 1; - - fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc, - &elen, &offset); - if (!fi) - goto out; - - liu = le16_to_cpu(cfi.lengthOfImpUse); - lfi = cfi.lengthFileIdent; - - if (fibh.sbh == fibh.ebh) { - nameptr = fi->fileIdent + liu; - } else { - int poffset; /* Unpaded ending offset */ - - poffset = fibh.soffset + sizeof(struct fileIdentDesc) + liu + lfi; - - if (poffset >= lfi) { - nameptr = (char *)(fibh.ebh->b_data + poffset - lfi); - } else { - nameptr = fname; - memcpy(nameptr, fi->fileIdent + liu, - lfi - poffset); - memcpy(nameptr + lfi - poffset, - fibh.ebh->b_data, poffset); - } - } - - if ((cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) { - if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE)) - continue; - } - - if ((cfi.fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0) { - if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE)) - continue; - } - - if (cfi.fileCharacteristics & FID_FILE_CHAR_PARENT) { - iblock = parent_ino(filp->f_path.dentry); - flen = 2; - memcpy(fname, "..", flen); - dt_type = DT_DIR; - } else { - struct kernel_lb_addr tloc = lelb_to_cpu(cfi.icb.extLocation); - - iblock = udf_get_lb_pblock(dir->i_sb, &tloc, 0); - flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi); - dt_type = DT_UNKNOWN; - } - - if (flen && filldir(dirent, fname, flen, filp->f_pos, - iblock, dt_type) < 0) - goto out; - } /* end while */ - - filp->f_pos = (nf_pos >> 2) + 1; - -out: - if (fibh.sbh != fibh.ebh) - brelse(fibh.ebh); - brelse(fibh.sbh); - brelse(epos.bh); - kfree(fname); - - return ret; -} - -static int udf_readdir(struct file *filp, void *dirent, filldir_t filldir) -{ - struct inode *dir = filp->f_path.dentry->d_inode; - int result; - - if (filp->f_pos == 0) { - if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < 0) { - return 0; - } - filp->f_pos++; - } - - result = do_udf_readdir(dir, filp, filldir, dirent); - return result; -} - -/* readdir and lookup functions */ -const struct file_operations udf_dir_operations = { - .llseek = generic_file_llseek, - .read = generic_read_dir, - .readdir = udf_readdir, - .unlocked_ioctl = udf_ioctl, - .fsync = generic_file_fsync, -}; -- cgit