call_usermodehelper() should wait for process #1191
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As of Linux 3.4 the UMH_WAIT_* constants were renumbered. In particular, the meaning of "1" changed from UMH_WAIT_PROC (wait for process to complete), to UMH_WAIT_EXEC (wait for the exec, but not the process). A number of call sites used the number 1 instead of the constant name, so the behavior was not as expected on kernels with this change. One visible consequence of this change was that processes accessing automounted snapshots received an ELOOP error because they failed to wait for zfs.mount to complete. Closes openzfs#816
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761394b call_usermodehelper() should wait for process |
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As of Linux 3.4 the UMH_WAIT_* constants were renumbered. In
particular, the meaning of "1" changed from UMH_WAIT_PROC (wait for
process to complete), to UMH_WAIT_EXEC (wait for the exec, but not the
process). A number of call sites used the number 1 instead of the
constant name, so the behavior was not as expected on kernels with this
change.
One visible consequence of this change was that processes accessing
automounted snapshots received an ELOOP error because they failed to
wait for zfs.mount to complete.
Closes #816