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| author |   Ilya Dryomov <ilya.dryomov@inktank.com> | 2014-07-23 17:11:19 +0400 |
|---|---|---|
| committer | Ilya Dryomov <ilya.dryomov@inktank.com> | 2014-07-25 13:15:00 +0400 |
| commit | a720ae0901eddab5c94a17402b7ed29e1afb5003 (patch) | |
| tree | 759f327e7d8f9b5a2c6ef358bbcf9d8639e849a2 /drivers/block/rbd.c | |
| parent | rbd: show the entire chain of parent images (diff) | |
| download | linux-dev-a720ae0901eddab5c94a17402b7ed29e1afb5003.tar.xz linux-dev-a720ae0901eddab5c94a17402b7ed29e1afb5003.zip | |
rbd: introduce rbd_dev_header_info()
A wrapper around rbd_dev_v{1,2}_header_info() to reduce duplication.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Diffstat (limited to 'drivers/block/rbd.c')
| -rw-r--r-- | drivers/block/rbd.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 7847fbb949ff..0d3be608f16f 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -514,7 +514,7 @@ static void rbd_dev_remove_parent(struct rbd_device *rbd_dev); static int rbd_dev_refresh(struct rbd_device *rbd_dev); static int rbd_dev_v2_header_onetime(struct rbd_device *rbd_dev); -static int rbd_dev_v2_header_info(struct rbd_device *rbd_dev); +static int rbd_dev_header_info(struct rbd_device *rbd_dev); static const char *rbd_dev_v2_snap_name(struct rbd_device *rbd_dev, u64 snap_id); static int _rbd_dev_v2_snap_size(struct rbd_device *rbd_dev, u64 snap_id, @@ -3506,13 +3506,10 @@ static int rbd_dev_refresh(struct rbd_device *rbd_dev) u64 mapping_size; int ret; - rbd_assert(rbd_image_format_valid(rbd_dev->image_format)); down_write(&rbd_dev->header_rwsem); mapping_size = rbd_dev->mapping.size; - if (rbd_dev->image_format == 1) - ret = rbd_dev_v1_header_info(rbd_dev); - else - ret = rbd_dev_v2_header_info(rbd_dev); + + ret = rbd_dev_header_info(rbd_dev); /* If it's a mapped snapshot, validate its EXISTS flag */ @@ -4501,6 +4498,16 @@ static int rbd_dev_v2_header_info(struct rbd_device *rbd_dev) return ret; } +static int rbd_dev_header_info(struct rbd_device *rbd_dev) +{ + rbd_assert(rbd_image_format_valid(rbd_dev->image_format)); + + if (rbd_dev->image_format == 1) + return rbd_dev_v1_header_info(rbd_dev); + + return rbd_dev_v2_header_info(rbd_dev); +} + static int rbd_bus_add_dev(struct rbd_device *rbd_dev) { struct device *dev; @@ -5149,10 +5156,7 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev, bool mapping) goto out_header_name; } - if (rbd_dev->image_format == 1) - ret = rbd_dev_v1_header_info(rbd_dev); - else - ret = rbd_dev_v2_header_info(rbd_dev); + ret = rbd_dev_header_info(rbd_dev); if (ret) goto err_out_watch; |