fuse: notify: don't move pages
commit 0d2783626a
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
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@ -1726,6 +1726,9 @@ copy_finish:
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static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
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static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
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unsigned int size, struct fuse_copy_state *cs)
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unsigned int size, struct fuse_copy_state *cs)
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{
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{
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/* Don't try to move pages (yet) */
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cs->move_pages = 0;
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switch (code) {
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switch (code) {
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case FUSE_NOTIFY_POLL:
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case FUSE_NOTIFY_POLL:
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return fuse_notify_poll(fc, size, cs);
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return fuse_notify_poll(fc, size, cs);
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