From: Jan Kara <jack@xxxxxxx>
[ Upstream commit afb525f466f9fdc140b975221cb43fbb5c59314e ]
Convert empty_dir() to new directory iteration code.
Signed-off-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/udf/namei.c | 68 +++++++--------------------------------------------------
1 file changed, 9 insertions(+), 59 deletions(-)
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -879,69 +879,19 @@ out:
static int empty_dir(struct inode *dir)
{
- struct fileIdentDesc *fi, cfi;
- struct udf_fileident_bh fibh;
- loff_t f_pos;
- loff_t size = udf_ext0_offset(dir) + dir->i_size;
- udf_pblk_t block;
- struct kernel_lb_addr eloc;
- uint32_t elen;
- sector_t offset;
- struct extent_position epos = {};
- struct udf_inode_info *dinfo = UDF_I(dir);
+ struct udf_fileident_iter iter;
+ int ret;
- f_pos = udf_ext0_offset(dir);
- fibh.soffset = fibh.eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
-
- if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
- fibh.sbh = fibh.ebh = NULL;
- else if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits,
- &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 (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
- epos.offset -= sizeof(struct short_ad);
- else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
- epos.offset -= sizeof(struct long_ad);
- } else
- offset = 0;
-
- fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block);
- if (!fibh.sbh) {
- brelse(epos.bh);
- return 0;
- }
- } else {
- brelse(epos.bh);
- return 0;
- }
-
- while (f_pos < size) {
- fi = udf_fileident_read(dir, &f_pos, &fibh, &cfi, &epos, &eloc,
- &elen, &offset);
- if (!fi) {
- if (fibh.sbh != fibh.ebh)
- brelse(fibh.ebh);
- brelse(fibh.sbh);
- brelse(epos.bh);
- return 0;
- }
-
- if (cfi.lengthFileIdent &&
- (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) == 0) {
- if (fibh.sbh != fibh.ebh)
- brelse(fibh.ebh);
- brelse(fibh.sbh);
- brelse(epos.bh);
+ for (ret = udf_fiiter_init(&iter, dir, 0);
+ !ret && iter.pos < dir->i_size;
+ ret = udf_fiiter_advance(&iter)) {
+ if (iter.fi.lengthFileIdent &&
+ !(iter.fi.fileCharacteristics & FID_FILE_CHAR_DELETED)) {
+ udf_fiiter_release(&iter);
return 0;
}
}
-
- if (fibh.sbh != fibh.ebh)
- brelse(fibh.ebh);
- brelse(fibh.sbh);
- brelse(epos.bh);
+ udf_fiiter_release(&iter);
return 1;
}
Patches currently in stable-queue which might be from cascardo@xxxxxxxxxx are
queue-5.15/udf-handle-error-when-expanding-directory.patch
queue-5.15/udf-convert-empty_dir-to-new-directory-iteration-code.patch
queue-5.15/udf-fix-bogus-checksum-computation-in-udf_rename.patch
queue-5.15/udf-convert-udf_expand_dir_adinicb-to-new-directory-iteration.patch
queue-5.15/udf-convert-udf_unlink-to-new-directory-iteration-code.patch
queue-5.15/udf-convert-udf_add_nondir-to-new-directory-iteration.patch
queue-5.15/udf-convert-udf_link-to-new-directory-iteration-code.patch
queue-5.15/udf-remove-old-directory-iteration-code.patch
queue-5.15/udf-don-t-return-bh-from-udf_expand_dir_adinicb.patch
queue-5.15/udf-new-directory-iteration-code.patch
queue-5.15/udf-convert-udf_rmdir-to-new-directory-iteration-code.patch
queue-5.15/udf-move-udf_expand_dir_adinicb-to-its-callsite.patch
queue-5.15/udf-convert-udf_readdir-to-new-directory-iteration.patch
queue-5.15/udf-convert-udf_mkdir-to-new-directory-iteration-code.patch
queue-5.15/udf-provide-function-to-mark-entry-as-deleted-using-new-directory-iteration-code.patch
queue-5.15/udf-convert-udf_lookup-to-use-new-directory-iteration-code.patch
queue-5.15/udf-implement-adding-of-dir-entries-using-new-iteration-code.patch
queue-5.15/udf-convert-udf_rename-to-new-directory-iteration-code.patch
queue-5.15/udf-convert-udf_get_parent-to-new-directory-iteration-code.patch
queue-5.15/udf-implement-searching-for-directory-entry-using-new-iteration-code.patch
