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cephfs: round to cephfs size to multiple of 4Mib

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Due to the bug in the df stat we need to round off
the subvolume size to align with 4Mib.

Note:- Minimum supported size in cephcsi is 1Mib,
we dont need to take care of Kib.

fixes #3240

More details at https://github.com/ceph/ceph/pull/46905

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
2022-07-12 14:19:25 +05:30
committed by mergify[bot]
parent 1856647506
commit f171143135
3 changed files with 68 additions and 2 deletions
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16
internal/util/util.go
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@ -58,6 +58,22 @@ func RoundOffBytes(bytes int64) int64 {
return num
}
// RoundOffCephFSVolSize rounds up the bytes to 4MiB if the request is less
// than 4MiB or if its greater it rounds up to multiple of 4MiB.
func RoundOffCephFSVolSize(bytes int64) int64 {
// Minimum supported size is 1MiB in CephCSI, if the request is <4MiB,
// round off to 4MiB.
if bytes < helpers.MiB {
return 4 * helpers.MiB
}
bytes /= helpers.MiB
bytes = int64(math.Ceil(float64(bytes)/4) * 4)
return RoundOffBytes(bytes * helpers.MiB)
}
// variables which will be set during the build time.
var (
// GitCommit tell the latest git commit image is built from.