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| author | Al Viro <viro@zeniv.linux.org.uk> | 2022-07-03 22:18:11 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2022-07-06 13:15:59 -0400 |
| commit | b16c001de0f66bc633aefe770a8b0a75c8c39a3b (patch) | |
| tree | 6830a53e7be4b73651c757d609f75b8fe943d633 /fs/namei.c | |
| parent | a4f5b52167a80edec74093fe6fef291a0318f4ba (diff) | |
| download | linux-b16c001de0f66bc633aefe770a8b0a75c8c39a3b.tar.gz | |
follow_dotdot{,_rcu}(): don't bother with inode
step_into() will fetch it, TYVM. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/fs/namei.c b/fs/namei.c index 60e17152374a..d631d797ea09 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1884,8 +1884,7 @@ static const char *step_into(struct nameidata *nd, int flags, return pick_link(nd, &path, inode, flags); } -static struct dentry *follow_dotdot_rcu(struct nameidata *nd, - struct inode **inodep) +static struct dentry *follow_dotdot_rcu(struct nameidata *nd) { struct dentry *parent, *old; @@ -1909,7 +1908,6 @@ static struct dentry *follow_dotdot_rcu(struct nameidata *nd, } old = nd->path.dentry; parent = old->d_parent; - *inodep = parent->d_inode; nd->next_seq = read_seqcount_begin(&parent->d_seq); // makes sure that non-RCU pathwalk could reach this state if (read_seqcount_retry(&old->d_seq, nd->seq)) @@ -1923,12 +1921,10 @@ in_root: if (unlikely(nd->flags & LOOKUP_BENEATH)) return ERR_PTR(-ECHILD); nd->next_seq = nd->seq; - *inodep = nd->path.dentry->d_inode; return nd->path.dentry; } -static struct dentry *follow_dotdot(struct nameidata *nd, - struct inode **inodep) +static struct dentry *follow_dotdot(struct nameidata *nd) { struct dentry *parent; @@ -1952,13 +1948,11 @@ static struct dentry *follow_dotdot(struct nameidata *nd, dput(parent); return ERR_PTR(-ENOENT); } - *inodep = parent->d_inode; return parent; in_root: if (unlikely(nd->flags & LOOKUP_BENEATH)) return ERR_PTR(-EXDEV); - *inodep = nd->path.dentry->d_inode; return dget(nd->path.dentry); } @@ -1967,7 +1961,6 @@ static const char *handle_dots(struct nameidata *nd, int type) if (type == LAST_DOTDOT) { const char *error = NULL; struct dentry *parent; - struct inode *inode; if (!nd->root.mnt) { error = ERR_PTR(set_root(nd)); @@ -1975,9 +1968,9 @@ static const char *handle_dots(struct nameidata *nd, int type) return error; } if (nd->flags & LOOKUP_RCU) - parent = follow_dotdot_rcu(nd, &inode); + parent = follow_dotdot_rcu(nd); else - parent = follow_dotdot(nd, &inode); + parent = follow_dotdot(nd); if (IS_ERR(parent)) return ERR_CAST(parent); error = step_into(nd, WALK_NOFOLLOW, parent); |