• Andrew Morton's avatar
    [PATCH] async write errors: use flags in address space · fcad2b42
    Andrew Morton authored
    From: Oliver Xymoron <oxymoron@waste.org>
    
    This patch just saves a few bytes in the inode by turning mapping->gfp_mask
    into an unsigned long mapping->flags.
    
    The mapping's gfp mask is placed in the 16 high bits of mapping->flags and
    two of the remaining 16 bits are used for tracking EIO and ENOSPC errors.
    
    This leaves 14 bits in the mapping for future use.  They should be accessed
    with the atomic bitops.
    fcad2b42
inode.c 9.3 KB