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udf: fix adding entry to a directory 

When adding directory entry to a directory, we have to properly increase
length of the last extent.  Handle this similarly as extending regular files -
make extents always have size multiple of block size (it will be truncated
down to proper size in udf_clear_inode()).

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2008-02-08 04:20:51 -08:00 committed by Linus Torvalds
parent af793295bf
commit 05343c4f2e
2 changed files with 11 additions and 10 deletions
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2
fs/udf/inode.c
View File

@ -289,7 +289,7 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
eloc.logicalBlockNum = *block;
eloc.partitionReferenceNum =
iinfo->i_location.partitionReferenceNum;
elen = inode->i_size;
elen = inode->i_sb->s_blocksize;
iinfo->i_lenExtents = elen;
epos.bh = NULL;
epos.block = iinfo->i_location;

19
fs/udf/namei.c
View File

@ -395,7 +395,6 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
}
block = dinfo->i_location.logicalBlockNum;
} else {
block = udf_get_lb_pblock(dir->i_sb, dinfo->i_location, 0);
fibh->sbh = fibh->ebh = NULL;
@ -474,6 +473,14 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
}
add:
if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
udf_write_aext(dir, &epos, eloc, elen, 1);
}
f_pos += nfidlen;
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB &&
@ -491,15 +498,9 @@ add:
if (!fibh->sbh)
return NULL;
epos.block = dinfo->i_location;
eloc.logicalBlockNum = block;
eloc.partitionReferenceNum =
dinfo->i_location.partitionReferenceNum;
elen = dir->i_sb->s_blocksize;
epos.offset = udf_file_entry_alloc_offset(dir);
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset += sizeof(short_ad);
else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
epos.offset += sizeof(long_ad);
/* Load extent udf_expand_dir_adinicb() has created */
udf_current_aext(dir, &epos, &eloc, &elen, 1);
}
if (sb->s_blocksize - fibh->eoffset >= nfidlen) {