[PATCH 18/53] shmem: use d_duplicate()
NeilBrown <[email protected]>
| Newsgroups | gmane.linux.uml.devel,gmane.linux.file-systems,gmane.linux.nfs,gmane.linux.file-systems.union,gmane.linux.kernel.mm,gmane.linux.kernel.cifs,gmane.comp.file-systems.ext4,gmane.linux.kernel,gmane.comp.file-systems.ceph.devel,gmane.comp.file-systems.ecryptfs.general,gmane.linux.kernel.efi |
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| Message-ID | <[email protected]> |
From: NeilBrown <[email protected]> To prepare for d_alloc_parallel() being permitted without a directory lock, use d_duplicate() when duplicating a dentry in order to create a whiteout. Signed-off-by: NeilBrown <[email protected]> --- mm/shmem.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index b40f3cd48961..6b39a59355d7 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -4030,11 +4030,12 @@ static int shmem_whiteout(struct mnt_idmap *idmap, struct dentry *whiteout; int error; - whiteout = d_alloc(old_dentry->d_parent, &old_dentry->d_name); + whiteout = d_duplicate(old_dentry); if (!whiteout) return -ENOMEM; error = shmem_mknod(idmap, old_dir, whiteout, S_IFCHR | WHITEOUT_MODE, WHITEOUT_DEV); + d_lookup_done(whiteout); dput(whiteout); return error; } -- 2.50.0.107.gf914562f5916.dirty