#include "udf_i.h"
#include "udf_sb.h"
-/* Prototypes for file operations */
-static int udf_readdir(struct file *, void *, filldir_t);
-static int do_udf_readdir(struct inode *, struct file *, filldir_t, void *);
-
-/* readdir and lookup functions */
-
-const struct file_operations udf_dir_operations = {
- .read = generic_read_dir,
- .readdir = udf_readdir,
- .ioctl = udf_ioctl,
- .fsync = udf_fsync_file,
-};
-
-/*
- * udf_readdir
- *
- * PURPOSE
- * Read a directory entry.
- *
- * DESCRIPTION
- * Optional - sys_getdents() will return -ENOTDIR if this routine is not
- * available.
- *
- * Refer to sys_getdents() in fs/readdir.c
- * sys_getdents() -> .
- *
- * PRE-CONDITIONS
- * filp Pointer to directory file.
- * buf Pointer to directory entry buffer.
- * filldir Pointer to filldir function.
- *
- * POST-CONDITIONS
- * <return> >=0 on success.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
-
-int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
-{
- struct inode *dir = filp->f_path.dentry->d_inode;
- int result;
-
- lock_kernel();
-
- if (filp->f_pos == 0) {
- if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) <
- 0) {
- unlock_kernel();
- return 0;
- }
- filp->f_pos++;
- }
-
- result = do_udf_readdir(dir, filp, filldir, dirent);
- unlock_kernel();
- return result;
-}
-
-static int
-do_udf_readdir(struct inode *dir, struct file *filp, filldir_t filldir,
- void *dirent)
+static int do_udf_readdir(struct inode *dir, struct file *filp,
+ filldir_t filldir, void *dirent)
{
struct udf_fileident_bh fibh;
struct fileIdentDesc *fi = NULL;
int i, num;
unsigned int dt_type;
struct extent_position epos = { NULL, 0, {0, 0} };
+ struct udf_inode_info *iinfo;
if (nf_pos >= size)
return 0;
if (nf_pos == 0)
nf_pos = (udf_ext0_offset(dir) >> 2);
- fibh.soffset = fibh.eoffset =
- (nf_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+ fibh.soffset = fibh.eoffset = (nf_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+ iinfo = UDF_I(dir);
+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
fibh.sbh = fibh.ebh = NULL;
- else if (inode_bmap(dir, nf_pos >> (dir->i_sb->s_blocksize_bits - 2),
- &epos, &eloc, &elen,
- &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+ } else if (inode_bmap(dir, nf_pos >> (dir->i_sb->s_blocksize_bits - 2),
+ &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
- else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+ else if (iinfo->i_alloc_type ==
+ ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
- } else
+ } else {
offset = 0;
+ }
if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) {
brelse(epos.bh);
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;
+ 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);
+ 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))
+ if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
bha[num++] = tmp;
else
brelse(tmp);
fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc,
&elen, &offset);
-
if (!fi) {
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
liu = le16_to_cpu(cfi.lengthOfImpUse);
lfi = cfi.lengthFileIdent;
- if (fibh.sbh == fibh.ebh)
+ if (fibh.sbh == fibh.ebh) {
nameptr = fi->fileIdent + liu;
- else {
+ } else {
int poffset; /* Unpaded ending offset */
- poffset =
- fibh.soffset + sizeof(struct fileIdentDesc) + liu +
- lfi;
+ poffset = fibh.soffset + sizeof(struct fileIdentDesc) + liu + lfi;
- if (poffset >= lfi)
- nameptr =
- (char *)(fibh.ebh->b_data + poffset - lfi);
- else {
+ if (poffset >= lfi) {
+ nameptr = (char *)(fibh.ebh->b_data + poffset - lfi);
+ } else {
nameptr = fname;
memcpy(nameptr, fi->fileIdent + liu,
lfi - poffset);
}
if (flen) {
- if (filldir
- (dirent, fname, flen, filp->f_pos, iblock,
- dt_type) < 0) {
+ if (filldir(dirent, fname, flen, filp->f_pos, iblock, dt_type) < 0) {
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
brelse(epos.bh);
- return 0;
+ return 0;
}
}
- } /* end while */
+ } /* end while */
filp->f_pos = nf_pos + 1;
return 0;
}
+
+/*
+ * udf_readdir
+ *
+ * PURPOSE
+ * Read a directory entry.
+ *
+ * DESCRIPTION
+ * Optional - sys_getdents() will return -ENOTDIR if this routine is not
+ * available.
+ *
+ * Refer to sys_getdents() in fs/readdir.c
+ * sys_getdents() -> .
+ *
+ * PRE-CONDITIONS
+ * filp Pointer to directory file.
+ * buf Pointer to directory entry buffer.
+ * filldir Pointer to filldir function.
+ *
+ * POST-CONDITIONS
+ * <return> >=0 on success.
+ *
+ * HISTORY
+ * July 1, 1997 - Andrew E. Mileski
+ * Written, tested, and released.
+ */
+
+static int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+ struct inode *dir = filp->f_path.dentry->d_inode;
+ int result;
+
+ lock_kernel();
+
+ if (filp->f_pos == 0) {
+ if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < 0) {
+ unlock_kernel();
+ return 0;
+ }
+ filp->f_pos++;
+ }
+
+ result = do_udf_readdir(dir, filp, filldir, dirent);
+ unlock_kernel();
+ return result;
+}
+
+/* readdir and lookup functions */
+const struct file_operations udf_dir_operations = {
+ .read = generic_read_dir,
+ .readdir = udf_readdir,
+ .ioctl = udf_ioctl,
+ .fsync = udf_fsync_file,
+};
projects / linux-2.6-omap-h63xx.git / blobdiff