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| author | Miklos Szeredi | 2018-02-08 15:17:38 +0100 |
|---|---|---|
| committer | Miklos Szeredi | 2018-03-20 17:11:43 +0100 |
| commit | df0e91d488276086bc07da2e389986cae0048c37 (patch) | |
| tree | b02f6993a75e9f16f10299613e6e9e7ff51869ae /include/uapi | |
| parent | Linux 4.16-rc6 (diff) | |
| download | kernel-qcow2-linux-df0e91d488276086bc07da2e389986cae0048c37.tar.gz kernel-qcow2-linux-df0e91d488276086bc07da2e389986cae0048c37.tar.xz kernel-qcow2-linux-df0e91d488276086bc07da2e389986cae0048c37.zip | |
fuse: atomic_o_trunc should truncate pagecache
Fuse has an "atomic_o_trunc" mode, where userspace filesystem uses the
O_TRUNC flag in the OPEN request to truncate the file atomically with the
open.
In this mode there's no need to send a SETATTR request to userspace after
the open, so fuse_do_setattr() checks this mode and returns. But this
misses the important step of truncating the pagecache.
Add the missing parts of truncation to the ATTR_OPEN branch.
Reported-by: Chad Austin <chadaustin@fb.com>
Fixes: 6ff958edbf39 ("fuse: add atomic open+truncate support")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions