On 07/22/2015 03:03 PM, Andrew Morton wrote:
On Tue, 21 Jul 2015 11:09:43 -0700 Mike Kravetz <[email protected]> wrote:
...
+
+ if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+ return -EOPNOTSUPP;
EOPNOTSUPP is a networking thing. It's inappropriate here.
The problem is that if this error is ever returned to userspace, the
user will be sitting looking at "Operation not supported on transport
endpoint" and wondering what went wrong in the networking stack.
Trying to follow FALLOCATE(2) man page:
"EOPNOTSUPP
The filesystem containing the file referred to by fd does not
support this operation; or the mode is not supported by the
filesystem containing the file referred to by fd."
--
Mike Kravetz
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