INDEX

NAME, SYNOPSIS, ARGUMENTS, DESCRIPTION, COPYRIGHT

"__LOCK_PAGE" "9" "July 2007" "Kernel Hackers Manual 2.6.22" "Memory Management in Linux"

NAME

__lock_page - get a lock on the page, assuming we need to sleep to get it

SYNOPSIS

"void fastcall __lock_page(struct page * " "page" ");"


ARGUMENTS

page

the page to lock

DESCRIPTION

Ugly. Running sync_pagefR
in state TASK_UNINTERRUPTIBLE is scary. If some random driver's requestfn sets TASK_RUNNING, we could busywait. However chances are that on the second loop, the block layer's plug list is empty, so sync_pagefR
will then return in state TASK_UNINTERRUPTIBLE.

COPYRIGHT

Possibly related

raw nroff source of __lock_page(9)