• Eric W. Biederman's avatar
    shm: fix the filename of hugetlb sysv shared memory · 9d66586f
    Eric W. Biederman authored
    
    
    Some user space tools need to identify SYSV shared memory when examining
    /proc/<pid>/maps.  To do so they look for a block device with major zero, a
    dentry named SYSV<sysv key>, and having the minor of the internal sysv
    shared memory kernel mount.
    
    To help these tools and to make it easier for people just browsing
    /proc/<pid>/maps this patch modifies hugetlb sysv shared memory to use the
    SYSV<key> dentry naming convention.
    
    User space tools will still have to be aware that hugetlb sysv shared
    memory lives on a different internal kernel mount and so has a different
    block device minor number from the rest of sysv shared memory.
    Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
    Cc: "Serge E. Hallyn" <serge@hallyn.com>
    Cc: Albert Cahalan <acahalan@gmail.com>
    Cc: Badari Pulavarty <pbadari@us.ibm.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    9d66586f
hugetlb.h 6.05 KB