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hostfs: store inode in dentry after mkdir if possible.

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After handling a mkdir, get the inode for the name and use
d_splice_alias() to store the correct dentry in the dcache.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Link: https://lore.kernel.org/r/20250227013949.536172-3-neilb@suse.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
NeilBrown 2025-02-27 12:32:54 +11:00 committed by Christian Brauner
parent 88d5baf690
commit 3f90030e12
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 9 additions and 1 deletions
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10
fs/hostfs/hostfs_kern.c
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@ -682,14 +682,22 @@ static int hostfs_symlink(struct mnt_idmap *idmap, struct inode *ino,
static struct dentry *hostfs_mkdir(struct mnt_idmap *idmap, struct inode *ino,
struct dentry *dentry, umode_t mode)
{
struct inode *inode;
char *file;
int err;
if ((file = dentry_name(dentry)) == NULL)
return ERR_PTR(-ENOMEM);
err = do_mkdir(file, mode);
if (err) {
dentry = ERR_PTR(err);
} else {
inode = hostfs_iget(dentry->d_sb, file);
d_drop(dentry);
dentry = d_splice_alias(inode, dentry);
}
__putname(file);
return ERR_PTR(err);
return dentry;
}
static int hostfs_rmdir(struct inode *ino, struct dentry *dentry)