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authorJan Kara <jack@suse.cz>2008-03-04 13:10:29 +0100
committerJan Kara <jack@suse.cz>2008-04-17 14:23:03 +0200
commit9bf2c6b834f4caad82b3e2d962c266153d39e411 (patch)
tree5386b3eb6dec103815b81e92d5977a59ef5c4ec9
parent200a3592cda7bfc010d30c0b1eb8eff3791e9ba9 (diff)
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udf: Remove checking of existence of filename in udf_add_entry()
We don't have to check whether a directory entry already exists in a directory when creating a new one since we've already checked that earlier by lookup and we are holding directory i_mutex all the time. Signed-off-by: Jan Kara <jack@suse.cz>
-rw-r--r--fs/udf/namei.c38
1 files changed, 1 insertions, 37 deletions
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index ac7f72779e9..e9f587201e1 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -303,11 +303,9 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
{
struct super_block *sb = dir->i_sb;
struct fileIdentDesc *fi = NULL;
- char name[UDF_NAME_LEN], fname[UDF_NAME_LEN];
+ char name[UDF_NAME_LEN];
int namelen;
loff_t f_pos;
- int flen;
- char *nameptr;
loff_t size = udf_ext0_offset(dir) + dir->i_size;
int nfidlen;
uint8_t lfi;
@@ -385,26 +383,6 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
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 (((sizeof(struct fileIdentDesc) +
liu + lfi + 3) & ~3) == nfidlen) {
@@ -423,20 +401,6 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
}
}
}
-
- if (!lfi || !dentry)
- continue;
-
- flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
- if (flen && udf_match(flen, fname, dentry->d_name.len,
- dentry->d_name.name)) {
- if (fibh->sbh != fibh->ebh)
- brelse(fibh->ebh);
- brelse(fibh->sbh);
- brelse(epos.bh);
- *err = -EEXIST;
- return NULL;
- }
}
add: