From c412ce498396097cb96b3e24e062752312a962c9 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Fri, 16 Dec 2016 11:02:55 +0100 Subject: [PATCH] ovl: add ovl_dentry_is_whiteout() And use it instead of ovl_dentry_is_opaque() where appropriate. Signed-off-by: Miklos Szeredi --- fs/overlayfs/dir.c | 6 +++--- fs/overlayfs/overlayfs.h | 1 + fs/overlayfs/super.c | 5 +++++ 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c index fdc7b14..b559221 100644 --- a/fs/overlayfs/dir.c +++ b/fs/overlayfs/dir.c @@ -504,7 +504,7 @@ static int ovl_create_or_link(struct dentry *dentry, struct inode *inode, put_cred(override_creds(override_cred)); put_cred(override_cred); - if (!ovl_dentry_is_opaque(dentry)) + if (!ovl_dentry_is_whiteout(dentry)) err = ovl_create_upper(dentry, inode, stat, link, hardlink); else @@ -842,14 +842,14 @@ static int ovl_rename(struct inode *olddir, struct dentry *old, if (overwrite) { if (old_opaque) { - if (new->d_inode || !new_opaque) { + if (!ovl_dentry_is_whiteout(new)) { /* Whiteout source */ flags |= RENAME_WHITEOUT; } else { /* Switch whiteouts */ flags |= RENAME_EXCHANGE; } - } else if (is_dir && !new->d_inode && new_opaque) { + } else if (is_dir && ovl_dentry_is_whiteout(new)) { flags |= RENAME_EXCHANGE; cleanup_whiteout = true; } diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 95d0d86..51e7d58 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -161,6 +161,7 @@ struct dentry *ovl_workdir(struct dentry *dentry); int ovl_want_write(struct dentry *dentry); void ovl_drop_write(struct dentry *dentry); bool ovl_dentry_is_opaque(struct dentry *dentry); +bool ovl_dentry_is_whiteout(struct dentry *dentry); void ovl_dentry_set_opaque(struct dentry *dentry, bool opaque); bool ovl_is_whiteout(struct dentry *dentry); const struct cred *ovl_override_creds(struct super_block *sb); diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index e296312..aa0427d 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -209,6 +209,11 @@ bool ovl_dentry_is_opaque(struct dentry *dentry) return oe->opaque; } +bool ovl_dentry_is_whiteout(struct dentry *dentry) +{ + return !dentry->d_inode && ovl_dentry_is_opaque(dentry); +} + void ovl_dentry_set_opaque(struct dentry *dentry, bool opaque) { struct ovl_entry *oe = dentry->d_fsdata; -- 2.7.4