Difference between revisions of "Special:Badtitle/NS1198:Ploop/readme/82/en"
(Importing a new version from external source) |
(No difference)
|
Latest revision as of 03:12, 24 September 2016
ploop doesn't support pure shrinking block-device size due to lack of online shrink support in ext4. As a workaround, "ballooning" technique is proposed. Ballooning operation consists of inflating special balloon file in user-space (the file will be invisible for ordinary users, e.g. inside container), loading fiemap info of inflated balloon to kernel, relocating blocks of image file from the tail to the space specified by fiemap info and truncating tail of image file.
