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ovl: pass name buffer to ovl_start_creating_temp()

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Now ovl_start_creating_temp() is passed a buffer in which to store the
temp name.  This will be useful in a future patch were ovl_create_real()
will need access to that name.

Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: NeilBrown <neil@brown.name>
Link: https://patch.msgid.link/20260224222542.3458677-12-neilb@ownmail.net
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
NeilBrown
2026-02-25 09:16:56 +11:00
committed by Christian Brauner
parent deef049935
commit 85bb1420a8
1 changed files with 8 additions and 6 deletions
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14
fs/overlayfs/dir.c
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@@ -66,10 +66,9 @@ void ovl_tempname(char name[OVL_TEMPNAME_SIZE])
}
static struct dentry *ovl_start_creating_temp(struct ovl_fs *ofs,
struct dentry *workdir)
struct dentry *workdir,
char name[OVL_TEMPNAME_SIZE])
{
char name[OVL_TEMPNAME_SIZE];
ovl_tempname(name);
return start_creating(ovl_upper_mnt_idmap(ofs), workdir,
&QSTR(name));
@@ -81,11 +80,12 @@ static struct dentry *ovl_whiteout(struct ovl_fs *ofs)
struct dentry *whiteout, *link;
struct dentry *workdir = ofs->workdir;
struct inode *wdir = workdir->d_inode;
char name[OVL_TEMPNAME_SIZE];
guard(mutex)(&ofs->whiteout_lock);
if (!ofs->whiteout) {
whiteout = ovl_start_creating_temp(ofs, workdir);
whiteout = ovl_start_creating_temp(ofs, workdir, name);
if (IS_ERR(whiteout))
return whiteout;
err = ovl_do_whiteout(ofs, wdir, whiteout);
@@ -97,7 +97,7 @@ static struct dentry *ovl_whiteout(struct ovl_fs *ofs)
}
if (!ofs->no_shared_whiteout) {
link = ovl_start_creating_temp(ofs, workdir);
link = ovl_start_creating_temp(ofs, workdir, name);
if (IS_ERR(link))
return link;
err = ovl_do_link(ofs, ofs->whiteout, wdir, link);
@@ -247,7 +247,9 @@ struct dentry *ovl_create_temp(struct ovl_fs *ofs, struct dentry *workdir,
struct ovl_cattr *attr)
{
struct dentry *ret;
ret = ovl_start_creating_temp(ofs, workdir);
char name[OVL_TEMPNAME_SIZE];
ret = ovl_start_creating_temp(ofs, workdir, name);
if (IS_ERR(ret))
return ret;
ret = ovl_create_real(ofs, workdir, ret, attr);