nilfs: fix breakage caused by barrier flag changes
After merging the block tree, today's linux-next build (powerpc ppc64_defconfig) failed like this: fs/nilfs2/the_nilfs.c: In function 'nilfs_discard_segments': fs/nilfs2/the_nilfs.c:673: error: 'DISCARD_FL_BARRIER' undeclared (first use in this function) Caused by commit fbd9b09a ("blkdev: generalize flags for blkdev_issue_fn functions") interacting with commit e902ec99 ("nilfs2: issue discard request after cleaning segments") (which netered Linus' tree on about March 4 - before v2.6.34-rc1). Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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