diff options
| author | Miklos Szeredi <mszeredi@suse.cz> | 2008-05-15 01:05:37 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-15 04:11:13 +0200 |
| commit | 3ef0f720e47e895b613b0305eb0a483e3ec11f23 (patch) | |
| tree | e696a950d76c90199661515e1068fc00102a15bf /arch | |
| parent | pnp: add ISAPnP MPU option quirks (diff) | |
| download | linux-3ef0f720e47e895b613b0305eb0a483e3ec11f23.tar.xz linux-3ef0f720e47e895b613b0305eb0a483e3ec11f23.zip | |
mm: fix infinite loop in filemap_fault
filemap_fault will go into an infinite loop if ->readpage() fails
asynchronously.
AFAICS the bug was introduced by this commit, which removed the wait after the
final readpage:
commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
Date: Thu Jul 19 01:46:57 2007 -0700
mm: fix fault vs invalidate race for linear mappings
Fix by reintroducing the wait_on_page_locked() after ->readpage() to make sure
the page is up-to-date before jumping back to the beginning of the function.
I've noticed this while testing nfs exporting on fuse. The patch
fixes it.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions