| From | lizf@kernel ... | Subject | [PATCH 3.4 093/172] fuse: notify: don't move pages | Date | Tue, 16 Jun 2015 16:35:47 +0800 |
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From: Miklos Szeredi <mszeredi@suse.cz>
3.4.108-rc1 review patch. If anyone has any objections, please let me know.
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commit 0d2783626a53d4c922f82d51fa675cb5d13f0d36 upstream.
fuse_try_move_page() is not prepared for replacing pages that have already been read.
Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Zefan Li <lizefan@huawei.com> --- fs/fuse/dev.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index f4246cf..8b3fd48 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1634,6 +1634,9 @@ copy_finish: static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code, unsigned int size, struct fuse_copy_state *cs) { + /* Don't try to move pages (yet) */ + cs->move_pages = 0; + switch (code) { case FUSE_NOTIFY_POLL: return fuse_notify_poll(fc, size, cs); -- 1.9.1
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