• Andrew Morton's avatar
    [PATCH] io-accounting: write accounting · 55e829af
    Andrew Morton authored
    Accounting writes is fairly simple: whenever a process flips a page from clean
    to dirty, we accuse it of having caused a write to underlying storage of
    PAGE_CACHE_SIZE bytes.
    
    This may overestimate the amount of writing: the page-dirtying may cause only
    one buffer_head's worth of writeout.  Fixing that is possible, but probably a
    bit messy and isn't obviously important.
    
    Cc: Jay Lan <jlan@sgi.com>
    Cc: Shailabh Nagar <nagar@watson.ibm.com>
    Cc: Balbir Singh <balbir@in.ibm.com>
    Cc: Chris Sturtivant <csturtiv@sgi.com>
    Cc: Tony Ernst <tee@sgi.com>
    Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
    Cc: David Wright <daw@sgi.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    55e829af
page-writeback.c 26.8 KB