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| author | Miklos Szeredi | 2016-07-27 11:36:03 +0200 |
|---|---|---|
| committer | Miklos Szeredi | 2016-07-27 11:36:03 +0200 |
| commit | 1b91dbdd2938a0102fea2d8853073159f2b08deb (patch) | |
| tree | 6c1c54e4b15a1efbcd15a4d68d6366c71abf9979 /fs/overlayfs/super.c | |
| parent | Linux 4.7 (diff) | |
| parent | vfs: clean up documentation (diff) | |
| download | kernel-qcow2-linux-1b91dbdd2938a0102fea2d8853073159f2b08deb.tar.gz kernel-qcow2-linux-1b91dbdd2938a0102fea2d8853073159f2b08deb.tar.xz kernel-qcow2-linux-1b91dbdd2938a0102fea2d8853073159f2b08deb.zip | |
Merge branch 'd_real' into overlayfs-next
Diffstat (limited to 'fs/overlayfs/super.c')
| -rw-r--r-- | fs/overlayfs/super.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 9a7693d5f8ff..5e254b3a8c56 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -304,7 +304,9 @@ static void ovl_dentry_release(struct dentry *dentry) } } -static struct dentry *ovl_d_real(struct dentry *dentry, struct inode *inode) +static struct dentry *ovl_d_real(struct dentry *dentry, + const struct inode *inode, + unsigned int open_flags) { struct dentry *real; @@ -314,6 +316,16 @@ static struct dentry *ovl_d_real(struct dentry *dentry, struct inode *inode) goto bug; } + if (d_is_negative(dentry)) + return dentry; + + if (open_flags) { + int err = ovl_open_maybe_copy_up(dentry, open_flags); + + if (err) + return ERR_PTR(err); + } + real = ovl_dentry_upper(dentry); if (real && (!inode || inode == d_inode(real))) return real; @@ -326,9 +338,7 @@ static struct dentry *ovl_d_real(struct dentry *dentry, struct inode *inode) return real; /* Handle recursion */ - if (real->d_flags & DCACHE_OP_REAL) - return real->d_op->d_real(real, inode); - + return d_real(real, inode, open_flags); bug: WARN(1, "ovl_d_real(%pd4, %s:%lu\n): real dentry not found\n", dentry, inode ? inode->i_sb->s_id : "NULL", inode ? inode->i_ino : 0); @@ -378,13 +388,11 @@ static int ovl_dentry_weak_revalidate(struct dentry *dentry, unsigned int flags) static const struct dentry_operations ovl_dentry_operations = { .d_release = ovl_dentry_release, - .d_select_inode = ovl_d_select_inode, .d_real = ovl_d_real, }; static const struct dentry_operations ovl_reval_dentry_operations = { .d_release = ovl_dentry_release, - .d_select_inode = ovl_d_select_inode, .d_real = ovl_d_real, .d_revalidate = ovl_dentry_revalidate, .d_weak_revalidate = ovl_dentry_weak_revalidate, |