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Commit c412ce49 authored by Miklos Szeredi's avatar Miklos Szeredi
Browse files

ovl: add ovl_dentry_is_whiteout() 



And use it instead of ovl_dentry_is_opaque() where appropriate.

Signed-off-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
parent 99f5d08e

fs/overlayfs/dir.c

+3 −3
Original line number Diff line number Diff line
@@ -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;

		}

fs/overlayfs/overlayfs.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

fs/overlayfs/super.c

+5 −0
Original line number Diff line number Diff line
@@ -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;