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    HWPOISON: Define a new error_remove_page address space op for async truncation · 25718736
    Andi Kleen 提交于
    Truncating metadata pages is not safe right now before
    we haven't audited all file systems.
    
    To enable truncation only for data address space define
    a new address_space callback error_remove_page.
    
    This is used for memory_failure.c memory error handling.
    
    This can be then set to truncate_inode_page()
    
    This patch just defines the new operation and adds documentation.
    
    Callers and users come in followon patches.
    Signed-off-by: NAndi Kleen <ak@linux.intel.com>
    25718736
vfs.txt 41.2 KB