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authorDavid Chinner <david@fromorbit.com>2008-10-30 18:32:43 +1100
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-10-30 18:32:43 +1100
commit6bfb3d065f4c498c17a3a07f3dc08cedff53aff4 (patch)
treec5c528c77e44584616a175e0dcc89713e7b76d0a /fs/xfs/linux-2.6/xfs_linux.h
parente0b8e8b65d578f5d5538465dff8392cf02e1cc5d (diff)
[XFS] Fix race when looking up reclaimable inodes
If we get a race looking up a reclaimable inode, we can end up with the winner proceeding to use the inode before it has been completely re-initialised. This is a Bad Thing. Fix the race by checking whether we are still initialising the inod eonce we have a reference to it, and if so wait for the initialisation to complete before continuing. While there, fix a leaked reference count in the same code when encountering an unlinked inode and we are not doing a lookup for a create operation. SGI-PV: 987246 SGI-Modid: xfs-linux-melb:xfs-kern:32429a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_linux.h')
-rw-r--r--fs/xfs/linux-2.6/xfs_linux.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 214717650b2..77d6ddcaf54 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -77,6 +77,7 @@
#include <linux/spinlock.h>
#include <linux/random.h>
#include <linux/ctype.h>
+#include <linux/writeback.h>
#include <asm/page.h>
#include <asm/div64.h>