On 5/22/19 10:51 AM, Konstantin Belousov wrote: > On Wed, May 22, 2019 at 10:36:34AM -0700, Johannes Lundberg wrote: >> Hi >> >> I'm fiddling with lindebugfs, which is based on pseudofs. When writing >> to a file, >> >> this works: # echo 1 >> /path/to/file >> >> but this does not: # echo 1 > /path/to/file >> >> "Operation not supported." is returned before the pseudofs code is even >> entered. >> >> Is this expected behavior? (if so, why?) > Does the file exist ? > > Pseudofs does not implement VOP_CREATE(), which is reasonable. Yes, it exists and my custom write function is receiving the call for ">>". (which is for example used by drm driver debugfs to do certain things on demand by accepting write to a debugfs file)Received on Wed May 22 2019 - 15:59:08 UTC
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