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| author | Miklos Szeredi <mszeredi@redhat.com> | 2018-02-08 15:17:38 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-03 11:21:28 +0200 |
| commit | 7672380b7d52a86cc54f558f5a93d4dfc595ced3 (patch) | |
| tree | a192be1bf75a6e4b3e5f3711504d035a11f67fee /tools/perf/scripts/python | |
| parent | fc111123fb9e7ae5eb0b85da0646ca1478306eb8 (diff) | |
fuse: atomic_o_trunc should truncate pagecache
commit df0e91d488276086bc07da2e389986cae0048c37 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions