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| author | Amir Goldstein <amir73il@gmail.com> | 2018-01-14 19:25:31 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2018-01-24 11:25:58 +0100 |
| commit | c62520a83bceae0bb0b7b3de10c3e81205cd3823 (patch) | |
| tree | f94b1fca8653e0a659d729859b188a74caaebaec /fs/overlayfs/namei.c | |
| parent | aa3ff3c152ff94ef045ed802db7535167f8a21ab (diff) | |
| download | linux-c62520a83bceae0bb0b7b3de10c3e81205cd3823.tar.bz2 | |
ovl: store 'has_upper' and 'opaque' as bit flags
We need to make some room in struct ovl_entry to store information
about redirected ancestors for NFS export, so cram two booleans as
bit flags.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/namei.c')
| -rw-r--r-- | fs/overlayfs/namei.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index 9d3ccbd95dde..ca15893cfaa9 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -957,10 +957,12 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, if (!oe) goto out_put; - oe->opaque = upperopaque; memcpy(oe->lowerstack, stack, sizeof(struct ovl_path) * ctr); dentry->d_fsdata = oe; + if (upperopaque) + ovl_dentry_set_opaque(dentry); + if (upperdentry) ovl_dentry_set_upper_alias(dentry); else if (index) @@ -1003,7 +1005,6 @@ out: bool ovl_lower_positive(struct dentry *dentry) { - struct ovl_entry *oe = dentry->d_fsdata; struct ovl_entry *poe = dentry->d_parent->d_fsdata; const struct qstr *name = &dentry->d_name; const struct cred *old_cred; @@ -1016,7 +1017,7 @@ bool ovl_lower_positive(struct dentry *dentry) * whiteout. */ if (!dentry->d_inode) - return oe->opaque; + return ovl_dentry_is_opaque(dentry); /* Negative upper -> positive lower */ if (!ovl_dentry_upper(dentry)) |