Vim searching through all existing buffers

Question

When dealing with a single file, I\'m used to:

/blah
do some work
n
do some work
n
do some work

Suppose now I want to search for some pattern o

Answer 1

Another approach:

:call setqflist([])           " clear quickfix list
:silent bufdo grepadd! foo %  " edit foo in command-line history window
:cw                           " view search results

Or mapped:

cmap bbb call setqflist([]) \| silent bufdo grepadd!  %$hha