From: NeilBrown Date: Thu, 27 Feb 2025 01:32:54 +0000 (+1100) Subject: hostfs: store inode in dentry after mkdir if possible. X-Git-Tag: v6.15-rc1~247^2~1^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3f90030e121201cb274cc4754d7be23099180d25;p=thirdparty%2Fkernel%2Flinux.git hostfs: store inode in dentry after mkdir if possible. 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 Signed-off-by: NeilBrown Link: https://lore.kernel.org/r/20250227013949.536172-3-neilb@suse.de Signed-off-by: Christian Brauner --- diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index ccbb48fe830dd..a2c6b9051c5b1 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -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)