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-rw-r--r--fs/fuse/dir.c4
-rw-r--r--fs/fuse/fuse_i.h4
-rw-r--r--fs/fuse/inode.c12
3 files changed, 18 insertions, 2 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 9ee2a6bbfa3..8ea4ea13ec5 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1054,8 +1054,10 @@ static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry,
if (fi->i_time < get_jiffies_64())
err = fuse_do_getattr(inode);
- if (!err)
+ if (!err) {
generic_fillattr(inode, stat);
+ stat->mode = fi->orig_i_mode;
+ }
return err;
}
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index e0555d68b4a..1764506fdd1 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -63,6 +63,10 @@ struct fuse_inode {
/** Time in jiffies until the file attributes are valid */
u64 i_time;
+
+ /** The sticky bit in inode->i_mode may have been removed, so
+ preserve the original mode */
+ mode_t orig_i_mode;
};
/** FUSE specific file data */
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 951e760d5c5..fd0735715c1 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -120,10 +120,11 @@ static void fuse_truncate(struct address_space *mapping, loff_t offset)
void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr)
{
struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_inode *fi = get_fuse_inode(inode);
loff_t oldsize;
inode->i_ino = attr->ino;
- inode->i_mode = (inode->i_mode & S_IFMT) + (attr->mode & 07777);
+ inode->i_mode = (inode->i_mode & S_IFMT) | (attr->mode & 07777);
inode->i_nlink = attr->nlink;
inode->i_uid = attr->uid;
inode->i_gid = attr->gid;
@@ -135,6 +136,15 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr)
inode->i_ctime.tv_sec = attr->ctime;
inode->i_ctime.tv_nsec = attr->ctimensec;
+ /*
+ * Don't set the sticky bit in i_mode, unless we want the VFS
+ * to check permissions. This prevents failures due to the
+ * check in may_delete().
+ */
+ fi->orig_i_mode = inode->i_mode;
+ if (!(fc->flags & FUSE_DEFAULT_PERMISSIONS))
+ inode->i_mode &= ~S_ISVTX;
+
spin_lock(&fc->lock);
oldsize = inode->i_size;
i_size_write(inode, attr->size);