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| author | Jeff Layton <jlayton@kernel.org> | 2024-03-19 19:34:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-17 12:43:52 +0300 |
| commit | f633cf1da1ad3b06b00fda044dd6327588f7b989 (patch) | |
| tree | 7a63792029f1992f04cf20d4b4c7c869c3df5aa3 | |
| parent | 09335c69daa48d930779f4f951d4fcde3c7f67ab (diff) | |
| download | linux-f633cf1da1ad3b06b00fda044dd6327588f7b989.tar.xz | |
9p: explicitly deny setlease attempts
[ Upstream commit 7a84602297d36617dbdadeba55a2567031e5165b ]
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: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/9p/vfs_file.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index ee9cabac1204..14d6cb031621 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -676,6 +676,7 @@ const struct file_operations v9fs_file_operations = { .lock = v9fs_file_lock, .mmap = generic_file_readonly_mmap, .fsync = v9fs_file_fsync, + .setlease = simple_nosetlease, }; const struct file_operations v9fs_file_operations_dotl = { @@ -711,4 +712,5 @@ const struct file_operations v9fs_mmap_file_operations_dotl = { .flock = v9fs_file_flock_dotl, .mmap = v9fs_mmap_file_mmap, .fsync = v9fs_file_fsync_dotl, + .setlease = simple_nosetlease, }; |