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ubifs: Remove ineffective function ubifs_evict_xattr_inode()

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Function ubifs_evict_xattr_inode() is imported by commit 272eda8298
("ubifs: Correctly evict xattr inodes") to reclaim xattr inode when
the host inode is deleted.
The xattr inode is evicted in the host inode deleting process since
commit 7959cf3a75 ("ubifs: journal: Handle xattrs like files").
So the ineffective function ubifs_evict_xattr_inode() can be deleted
safely.

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Zhihao Cheng 2024-07-12 14:36:25 +08:00 committed by Richard Weinberger
parent 957e1c4e17
commit 3c50701fd3
3 changed files with 0 additions and 27 deletions
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2
fs/ubifs/tnc.c
View File

@ -2930,8 +2930,6 @@ int ubifs_tnc_remove_ino(struct ubifs_info *c, ino_t inum)
dbg_tnc("xent '%s', ino %lu", xent->name,
(unsigned long)xattr_inum);
ubifs_evict_xattr_inode(c, xattr_inum);
fname_name(&nm) = xent->name;
fname_len(&nm) = le16_to_cpu(xent->nlen);
err = ubifs_tnc_remove_nm(c, &key1, &nm);

3
fs/ubifs/ubifs.h
View File

@ -2040,13 +2040,10 @@ ssize_t ubifs_xattr_get(struct inode *host, const char *name, void *buf,
#ifdef CONFIG_UBIFS_FS_XATTR
extern const struct xattr_handler * const ubifs_xattr_handlers[];
ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
void ubifs_evict_xattr_inode(struct ubifs_info *c, ino_t xattr_inum);
int ubifs_purge_xattrs(struct inode *host);
#else
#define ubifs_listxattr NULL
#define ubifs_xattr_handlers NULL
static inline void ubifs_evict_xattr_inode(struct ubifs_info *c,
ino_t xattr_inum) { }
static inline int ubifs_purge_xattrs(struct inode *host)
{
return 0;

22
fs/ubifs/xattr.c
View File

@ -570,28 +570,6 @@ int ubifs_purge_xattrs(struct inode *host)
return err;
}
/**
* ubifs_evict_xattr_inode - Evict an xattr inode.
* @c: UBIFS file-system description object
* @xattr_inum: xattr inode number
*
* When an inode that hosts xattrs is being removed we have to make sure
* that cached inodes of the xattrs also get removed from the inode cache
* otherwise we'd waste memory. This function looks up an inode from the
* inode cache and clears the link counter such that iput() will evict
* the inode.
*/
void ubifs_evict_xattr_inode(struct ubifs_info *c, ino_t xattr_inum)
{
struct inode *inode;
inode = ilookup(c->vfs_sb, xattr_inum);
if (inode) {
clear_nlink(inode);
iput(inode);
}
}
static int ubifs_xattr_remove(struct inode *host, const char *name)
{
struct inode *inode;