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| author | Al Viro <viro@zeniv.linux.org.uk> | 2019-06-29 12:58:42 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2019-07-04 18:58:38 -0400 |
| commit | e4e59906cfe4e215a4360962bedb3d6e5cca5158 (patch) | |
| tree | 3d53d532690556be1abc6f024b8752617d989ea8 /fs/namespace.c | |
| parent | adc9b5c09129fd8df17d83ca9a5b0532632a1b77 (diff) | |
| download | linux-0-day-e4e59906cfe4e215a4360962bedb3d6e5cca5158.tar.gz linux-0-day-e4e59906cfe4e215a4360962bedb3d6e5cca5158.tar.xz | |
fs/namespace.c: shift put_mountpoint() to callers of unhash_mnt()
make unhash_mnt() return the mountpoint to be dropped, let callers
deal with it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 746e3fd1f4307..b7059a4f07e36 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -795,15 +795,17 @@ static void __touch_mnt_namespace(struct mnt_namespace *ns) /* * vfsmount lock must be held for write */ -static void unhash_mnt(struct mount *mnt) +static struct mountpoint *unhash_mnt(struct mount *mnt) { + struct mountpoint *mp; mnt->mnt_parent = mnt; mnt->mnt_mountpoint = mnt->mnt.mnt_root; list_del_init(&mnt->mnt_child); hlist_del_init_rcu(&mnt->mnt_hash); hlist_del_init(&mnt->mnt_mp_list); - put_mountpoint(mnt->mnt_mp); + mp = mnt->mnt_mp; mnt->mnt_mp = NULL; + return mp; } /* @@ -813,7 +815,7 @@ static void detach_mnt(struct mount *mnt, struct path *old_path) { old_path->dentry = mnt->mnt_mountpoint; old_path->mnt = &mnt->mnt_parent->mnt; - unhash_mnt(mnt); + put_mountpoint(unhash_mnt(mnt)); } /* @@ -823,7 +825,7 @@ static void umount_mnt(struct mount *mnt) { /* old mountpoint will be dropped when we can do that */ mnt->mnt_ex_mountpoint = mnt->mnt_mountpoint; - unhash_mnt(mnt); + put_mountpoint(unhash_mnt(mnt)); } /* |