Unverified Commit 7a846022 authored by Jeff Layton's avatar Jeff Layton Committed by Eric Van Hensbergen
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9p: explicitly deny setlease attempts 



9p is a remote network protocol, and it doesn't support asynchronous
notifications from the server. Ensure that we don't hand out any leases
since we can't guarantee they'll be broken when a file's contents
change.

Signed-off-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@kernel.org>
parent 4e5d208c

fs/9p/vfs_file.c

+2 −0
Original line number Diff line number Diff line
@@ -520,6 +520,7 @@ const struct file_operations v9fs_file_operations = { 
	.splice_read = v9fs_file_splice_read,

	.splice_write = iter_file_splice_write,

	.fsync = v9fs_file_fsync,

	.setlease = simple_nosetlease,

};



const struct file_operations v9fs_file_operations_dotl = {
@@ -534,4 +535,5 @@ const struct file_operations v9fs_file_operations_dotl = { 
	.splice_read = v9fs_file_splice_read,

	.splice_write = iter_file_splice_write,

	.fsync = v9fs_file_fsync_dotl,

	.setlease = simple_nosetlease,

};