From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Tue, 28 Aug 2007 18:29:32 +0000 (+0300)
Subject: UBI: allocate memory with GFP_NOFS
X-Git-Tag: v2.6.24-rc1~1324^2^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33818bbb84cd371b63ed8849cc5264d24c8b3aa2;p=pandora-kernel.git

UBI: allocate memory with GFP_NOFS

Use GFP_NOFS flag when allocating memory on I/O path, because otherwise
we may deadlock the filesystem which works on top of us. We observed
the deadlocks with UBIFS. Example:

VFS->FS lock a lock->UBI->kmalloc()->VFS writeback->FS locks the same
lock again.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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