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authorAl Viro <viro@zeniv.linux.org.uk>2019-04-02 15:42:50 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2019-04-10 01:21:06 +0200
commit1d8b29fdb7ef39bd76bcd7a7f516938163097b0e (patch)
tree6529627ac8c398afd4d447e7259c0ecc589df138 /fs/sysv
parentnsfs: unobfuscate (diff)
downloadlinux-1d8b29fdb7ef39bd76bcd7a7f516938163097b0e.tar.xz
linux-1d8b29fdb7ef39bd76bcd7a7f516938163097b0e.zip
sysv: bury the broken "quietly truncate the long filenames" logics
It's contrary to the normal semantics, only sysv and adfs try to do that (on any other filesystem you'll get -ENAMETOOLONG instead of quiet truncation) and nobody actually uses that - it got accidentally broken 5 years ago and nobody noticed. Time to bury it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/sysv')
-rw-r--r--fs/sysv/namei.c15
-rw-r--r--fs/sysv/super.c3
-rw-r--r--fs/sysv/sysv.h3
3 files changed, 0 insertions, 21 deletions
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index 4d5d20491ffd..ea2414b385ec 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -28,21 +28,6 @@ static int add_nondir(struct dentry *dentry, struct inode *inode)
return err;
}
-static int sysv_hash(const struct dentry *dentry, struct qstr *qstr)
-{
- /* Truncate the name in place, avoids having to define a compare
- function. */
- if (qstr->len > SYSV_NAMELEN) {
- qstr->len = SYSV_NAMELEN;
- qstr->hash = full_name_hash(dentry, qstr->name, qstr->len);
- }
- return 0;
-}
-
-const struct dentry_operations sysv_dentry_operations = {
- .d_hash = sysv_hash,
-};
-
static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry, unsigned int flags)
{
struct inode * inode = NULL;
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index 89765ddfb738..d3b2f54d6449 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -312,7 +312,6 @@ static int complete_read_super(struct super_block *sb, int silent, int size)
flavour_setup[sbi->s_type](sbi, &sb->s_max_links);
- sbi->s_truncate = 1;
sbi->s_ndatazones = sbi->s_nzones - sbi->s_firstdatazone;
sbi->s_inodes_per_block = bsize >> 6;
sbi->s_inodes_per_block_1 = (bsize >> 6)-1;
@@ -334,8 +333,6 @@ static int complete_read_super(struct super_block *sb, int silent, int size)
sb->s_op = &sysv_sops;
if (sbi->s_forced_ro)
sb->s_flags |= SB_RDONLY;
- if (sbi->s_truncate)
- sb->s_d_op = &sysv_dentry_operations;
root_inode = sysv_iget(sb, SYSV_ROOT_INO);
if (IS_ERR(root_inode)) {
printk("SysV FS: get root inode failed\n");
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index e913698779c0..1cff585526b1 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -23,8 +23,6 @@ struct sysv_sb_info {
struct super_block *s_sb; /* VFS superblock */
int s_type; /* file system type: FSTYPE_{XENIX|SYSV|COH} */
char s_bytesex; /* bytesex (le/be/pdp) */
- char s_truncate; /* if 1: names > SYSV_NAMELEN chars are truncated */
- /* if 0: they are disallowed (ENAMETOOLONG) */
unsigned int s_inodes_per_block; /* number of inodes per block */
unsigned int s_inodes_per_block_1; /* inodes_per_block - 1 */
unsigned int s_inodes_per_block_bits; /* log2(inodes_per_block) */
@@ -166,7 +164,6 @@ extern const struct file_operations sysv_file_operations;
extern const struct file_operations sysv_dir_operations;
extern const struct address_space_operations sysv_aops;
extern const struct super_operations sysv_sops;
-extern const struct dentry_operations sysv_dentry_operations;
enum {