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| author | Philipp Reisner <philipp.reisner@linbit.com> | 2010-08-25 10:21:04 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2010-10-23 13:01:45 +0200 |
| commit | a8a4e51e6965db84d2af041370ea2ab6232aa4f1 (patch) | |
| tree | 74f1301712fa631faf6c39337bced33060ca5038 /drivers/block/drbd/drbd_int.h | |
| parent | 2451fc3b2bd3a7205270da75a21dde0d5d7c96a2 (diff) | |
| download | lwn-a8a4e51e6965db84d2af041370ea2ab6232aa4f1.tar.gz lwn-a8a4e51e6965db84d2af041370ea2ab6232aa4f1.zip | |
drbd: REQ_HARDBARRIER -> REQ_FUA transition for meta data accesses
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 1b915fd9278f..575bfba1b0da 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -835,8 +835,7 @@ enum { NO_BARRIER_SUPP, /* underlying block device doesn't implement barriers */ CONSIDER_RESYNC, - MD_NO_BARRIER, /* meta data device does not support barriers, - so don't even try */ + MD_NO_FUA, /* Users wants us to not use FUA/FLUSH on meta data dev */ SUSPEND_IO, /* suspend application io */ BITMAP_IO, /* suspend application io; once no more io in flight, start bitmap io */ @@ -2404,13 +2403,13 @@ static inline void drbd_md_flush(struct drbd_conf *mdev) { int r; - if (test_bit(MD_NO_BARRIER, &mdev->flags)) + if (test_bit(MD_NO_FUA, &mdev->flags)) return; r = blkdev_issue_flush(mdev->ldev->md_bdev, GFP_KERNEL, NULL, BLKDEV_IFL_WAIT); if (r) { - set_bit(MD_NO_BARRIER, &mdev->flags); + set_bit(MD_NO_FUA, &mdev->flags); dev_err(DEV, "meta data flush failed with status %d, disabling md-flushes\n", r); } } |