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authorShaohua Li <shli@kernel.org>2012-04-13 10:27:35 +0800
committerTheodore Ts'o <tytso@mit.edu>2012-04-23 21:43:41 -0400
commit99aa78466777083255b876293e9e83dec7cd809a (patch)
treee15bd88760cb27bb306929b19ba41abc53e0e333 /firmware
parent57f73c2c89a5d3b2ed87201c8100d1fa989a1a65 (diff)
jbd2: use GFP_NOFS for blkdev_issue_flush
flush request is issued in transaction commit code path, so looks using GFP_KERNEL to allocate memory for flush request bio falls into the classic deadlock issue. I saw btrfs and dm get it right, but ext4, xfs and md are using GFP. Signed-off-by: Shaohua Li <shli@fusionio.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@vger.kernel.org
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