Age | Commit message (Collapse) | Author |
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Failed because of double free of fds.
Test: run it
Change-Id: I25d7d590ca52d57fb14a5483ff8751127f6a48a6
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This fixes two race conditions in LoopControl::Attach(). The first is
that after LOOP_CTL_GET_FREE, the path is not be available until it has
been processed by ueventd. This can be fixed by adding a timeout
parameter and a call to WaitForFile().
Second, it is possible (albeit unlikely), given that loop devices are
now being used more aggressively, that two processes race when
attempting LOOP_SET_FD. In this case, one process will win, and the
other will fail with EBUSY. We can handle this case by retrying the
operation while respecting the same timeout parameter.
Bug: 135771280
Test: libdm_test gtest
Change-Id: Icf9facc3ca28fdb6ff5c78612d3dc183fa47b1f3
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Bug: 134536978
Test: manual test
Change-Id: Iae25434ac54186fd6006b56eeb7a7f577a880053
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This change adds a LoopControl class for interacting with the loop
control device. In addition it provides a LoopDevice class for creating
temporary loop devices. This is aimed at being a building block for libdm
tests, so the current functionality is limited to attaching and
detaching file descriptors and finding free loop devices.
Bug: 110035986
Test: libdm_test gtest
Change-Id: Ice2891e3a44a037aff7b81c63ac793815640d582
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