Hi,
At 23:20 05/04/06, Stephen C. Tweedie wrote: >Yes. But it is conventional to interpret a short write as being a >failure. Returning less bytes than were requested in the write >indicates that the rest failed. It just doesn't give the exact nature >of the failure (EIO vs ENOSPC etc.) For regular files, a short write is >never permitted unless there are errors of some description.
When commit_write() FULLY succeed (requested bytes == returned bytes) but
generic_osync_inode() return error due to I/O failure, current do_generic_file_write() cannot
return error. I encountered above situation a lot under an I/O trouble condition .
In ver 2.6.11, the return value of generic_osync_inode() is returned directry to user
when I/O failure occur.
thanks.
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