export/fuse: Give SET_ATTR_SIZE its own branch
In order to support changing other attributes than the file size in fuse_setattr(), we have to give each its own independent branch. This also applies to the only attribute we do support right now. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20210625142317.271673-4-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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@ -417,20 +417,22 @@ static void fuse_setattr(fuse_req_t req, fuse_ino_t inode, struct stat *statbuf,
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FuseExport *exp = fuse_req_userdata(req);
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int ret;
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if (!exp->writable) {
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fuse_reply_err(req, EACCES);
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return;
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}
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if (to_set & ~FUSE_SET_ATTR_SIZE) {
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fuse_reply_err(req, ENOTSUP);
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return;
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}
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ret = fuse_do_truncate(exp, statbuf->st_size, true, PREALLOC_MODE_OFF);
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if (ret < 0) {
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fuse_reply_err(req, -ret);
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return;
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if (to_set & FUSE_SET_ATTR_SIZE) {
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if (!exp->writable) {
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fuse_reply_err(req, EACCES);
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return;
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}
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ret = fuse_do_truncate(exp, statbuf->st_size, true, PREALLOC_MODE_OFF);
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if (ret < 0) {
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fuse_reply_err(req, -ret);
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return;
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}
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}
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fuse_getattr(req, inode, fi);
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