• Linus Torvalds's avatar
    Merge tag 'ovl-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs · 52435c86
    Linus Torvalds authored
    Pull overlayfs updates from Miklos Szeredi:
     "Fixes:
    
       - Resolve mount option conflicts consistently
    
       - Sync before remount R/O
    
       - Fix file handle encoding corner cases
    
       - Fix metacopy related issues
    
       - Fix an unintialized return value
    
       - Add missing permission checks for underlying layers
    
      Optimizations:
    
       - Allow multipe whiteouts to share an inode
    
       - Optimize small writes by inheriting SB_NOSEC from upper layer
    
       - Do not call ->syncfs() multiple times for sync(2)
    
       - Do not cache negative lookups on upper layer
    
       - Make private internal mounts longterm"
    
    * tag 'ovl-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (27 commits)
      ovl: remove unnecessary lock check
      ovl: make oip->index bool
      ovl: only pass ->ki_flags to ovl_iocb_to_rwf()
      ovl: make private mounts longterm
      ovl: get rid of redundant members in struct ovl_fs
      ovl: add accessor for ofs->upper_mnt
      ovl: initialize error in ovl_copy_xattr
      ovl: drop negative dentry in upper layer
      ovl: check permission to open real file
      ovl: call secutiry hook in ovl_real_ioctl()
      ovl: verify permissions in ovl_path_open()
      ovl: switch to mounter creds in readdir
      ovl: pass correct flags for opening real directory
      ovl: fix redirect traversal on metacopy dentries
      ovl: initialize OVL_UPPERDATA in ovl_lookup()
      ovl: use only uppermetacopy state in ovl_lookup()
      ovl: simplify setting of origin for index lookup
      ovl: fix out of bounds access warning in ovl_check_fb_len()
      ovl: return required buffer size for file handles
      ovl: sync dirty data when remounting to ro mode
      ...
    52435c86
security.c 62.4 KB